Update aps description for nfc tag operations.

Signed-off-by: Nzhangxiuping <zhangxiuping@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-nfcTag.md

@@ -5,15 +5,94 @@
 > ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
 > 本模块首批接口从API version 7开始支持。后续版本的新增接口，采用上角标单独标记接口的起始版本。
 
+## **声明技术**
+
+开发Tag读写相关应用时，需要在应用的属性配置文件中，声明与NFC相关的属性值，比如，在module.json5文件中，声明下面属性值：
+```js
+{
+    "module": {
+        // other declared attributes.
+
+        "abilities": [
+            {
+                "skills": [
+                    {
+                        "actions": [
+                            // other declared actions,
+
+                            // add the nfc tag action
+                            "ohos.nfc.tag.action.TAG_FOUND"
+                        ]
+                    }
+                ],
+                "metadata": [
+                    {
+                        "name": "tag-tech",
+                        "value": "NfcA"
+                    },
+                    {
+                        "name": "tag-tech",
+                        "value": "IsoDep"
+                    },
+                    // add other technology if neccessary,
+                    // such as: NfcB/NfcF/NfcV/Ndef/MifareClassic/MifareUL/NdefFormatable
+                ]
+            }
+        ],
+        "requestPermissions": [
+            "name": "ohos.permission.NFC_TAG",
+            "reason": "tag",
+        ]
+    }
+}
+```
+> **注意：**
+1. 声明"actions"字段的内容填写，必须是"ohos.nfc.tag.action.TAG_FOUND"，不能更改。
+2. 声明技术时"metadata"中的"name"字段的内容填写，必须是"tag-tech"，不能更改。
+3. 声明技术时"metadata"中的"value"字段的内容填写，必须是"NfcA/NfcB/NfcF/NfcV/IsoDep/Ndef/MifareClassic/MifareUL/NdefFormatable"中的一个或多个。填写错误会造成解析失败。
+4. 声明权限时"requestPermissions"中的"name"字段的内容填写，必须是"ohos.permission.NFC_TAG"，不能更改。
+
 ## **导入模块**
 
 ```js
 import tag from '@ohos.nfc.tag';
 ```
 
+## **tag.TagInfo**
+在对相关Tag类型卡片进行读写之前，必须先获取TagInfo相关属性值，以确认设备读取到的Tag卡片支持哪些技术类型。这样Tag应用程序才能调用正确的接口和所读取到的Tag卡片进行通信。
+```js
+import tag from '@ohos.nfc.tag';
+
+onCreate(want, launchParam) {
+    // add other code here
+
+    // want is initialized by nfc service, contains tag info for this found tag
+    var tagInfo = tag.getTagInfo(want);
+    if (tagInfo == undefined) {
+        console.log("no TagInfo to be created, ignore it.");
+        return;
+    }
+    var isNfcATag =  false;
+    for (var i = 0; i < tagInfo.technology.length; i++) {
+        if (tagInfo.technology[i] == tag.NFC_A) {
+            isNfcATag = true;
+            break;
+        }
+        // also check for technology: tag.NFC_B/NFC_F/NFC_V/ISO_DEP/NDEF/MIFARE_CLASSIC/MIFARE_ULTRALIGHT/NDEF_FORMATABLE
+    }
+    if (isNfcATag) {
+        var nfcA = tag.getNfcATag(taginfo);
+        // other code to read or write this found tag.
+    }
+
+    // use the same code to handle for "NfcA/NfcB/NfcF/NfcV/IsoDep/Ndef/MifareClassic/MifareUL/NdefFormatable", such as:
+    // var isoDep = tag.getIsoDepTag(taginfo);
+}
+```
+
 ## tag.getNfcATag
 
-getNfcATag(tagInfo: [TagInfo](#taginfo7)): [NfcATag](js-apis-nfctech.md#nfcatag)
+getNfcATag(tagInfo: [TagInfo](#taginfo)): [NfcATag](js-apis-nfctech.md#nfcatag)
 
 获取NFC A类型Tag对象，通过该对象可访问NfcA技术类型的Tag。
 
@@ -29,7 +108,7 @@ getNfcATag(tagInfo: [TagInfo](#taginfo7)): [NfcATag](js-apis-nfctech.md#nfcatag)
 
 ## tag.getNfcBTag
 
-getNfcBTag(tagInfo: [TagInfo](#taginfo7)): [NfcBTag](js-apis-nfctech.md#nfcbtag)
+getNfcBTag(tagInfo: [TagInfo](#taginfo)): [NfcBTag](js-apis-nfctech.md#nfcbtag)
 
 获取NFC B类型Tag对象，通过该对象可访问NfcB技术类型的Tag。
 
@@ -45,7 +124,7 @@ getNfcBTag(tagInfo: [TagInfo](#taginfo7)): [NfcBTag](js-apis-nfctech.md#nfcbtag)
 
 ## tag.getNfcFTag
 
-getNfcFTag(tagInfo: [TagInfo](#taginfo7)): [NfcFTag](js-apis-nfctech.md#nfcftag)
+getNfcFTag(tagInfo: [TagInfo](#taginfo)): [NfcFTag](js-apis-nfctech.md#nfcftag)
 
 获取NFC F类型Tag对象，通过该对象可访问NfcF技术类型的Tag。
 
@@ -61,7 +140,7 @@ getNfcFTag(tagInfo: [TagInfo](#taginfo7)): [NfcFTag](js-apis-nfctech.md#nfcftag)
 
 ## tag.getNfcVTag
 
-getNfcVTag(tagInfo: [TagInfo](#taginfo7)): [NfcVTag](js-apis-nfctech.md#nfcvtag)
+getNfcVTag(tagInfo: [TagInfo](#taginfo)): [NfcVTag](js-apis-nfctech.md#nfcvtag)
 
 获取NFC V类型Tag对象，通过该对象可访问NfcV技术类型的Tag。
 
@@ -77,11 +156,10 @@ getNfcVTag(tagInfo: [TagInfo](#taginfo7)): [NfcVTag](js-apis-nfctech.md#nfcvtag)
 
 ## tag.getIsoDepTag<sup>9+</sup>
 
-getIsoDepTag(tagInfo: [TagInfo](#taginfo7)): [IsoDepTag](js-apis-nfctech.md#isoDepTag9 )
+getIsoDepTag(tagInfo: [TagInfo](#taginfo)): [IsoDepTag](js-apis-nfctech.md#isoDepTag9 )
 
 获取IsoDep类型Tag对象，通过该对象可访问Iso Dep技术类型的Tag。
 
-
 **需要权限**：ohos.permission.NFC_TAG
 
 **系统能力**：SystemCapability.Communication.NFC.Core
@@ -94,7 +172,7 @@ getIsoDepTag(tagInfo: [TagInfo](#taginfo7)): [IsoDepTag](js-apis-nfctech.md#isoD
 
 ## tag.getNdefTag<sup>9+</sup>
 
-getNdefTag(tagInfo: [TagInfo](#taginfo7)): [NdefTag](js-apis-nfctech.md#ndeftag9)
+getNdefTag(tagInfo: [TagInfo](#taginfo)): [NdefTag](js-apis-nfctech.md#ndeftag9)
 
 获取Ndef类型Tag对象，通过该对象可访问Ndef技术类型的Tag。
 
@@ -111,7 +189,7 @@ getNdefTag(tagInfo: [TagInfo](#taginfo7)): [NdefTag](js-apis-nfctech.md#ndeftag9
 
 ## tag.getMifareClassicTag<sup>9+</sup>
 
-getMifareClassicTag(tagInfo: [TagInfo](#taginfo7)): [MifareClassicTag](js-apis-nfctech.md#mifareclassictag-9)
+getMifareClassicTag(tagInfo: [TagInfo](#taginfo)): [MifareClassicTag](js-apis-nfctech.md#mifareclassictag-9)
 
 获取Mifare Classic类型Tag对象，通过该对象访问Mifare Classic技术类型的Tag。
 
@@ -127,7 +205,7 @@ getMifareClassicTag(tagInfo: [TagInfo](#taginfo7)): [MifareClassicTag](js-apis-n
 
 ## tag.getMifareUltralightTag<sup>9+</sup>
 
-getMifareUltralightTag(tagInfo: [TagInfo](#taginfo7)): [MifareUltralightTag](js-apis-nfctech.md#mifareultralighttag9)
+getMifareUltralightTag(tagInfo: [TagInfo](#taginfo)): [MifareUltralightTag](js-apis-nfctech.md#mifareultralighttag9)
 
 获取Mifare Ultralight类型Tag对象，通过该对象可访问Mifare Ultralight技术类型的Tag。
 
@@ -143,7 +221,7 @@ getMifareUltralightTag(tagInfo: [TagInfo](#taginfo7)): [MifareUltralightTag](js-
 
 ## tag.getNdefFormatableTag<sup>9+</sup>
 
-getNdefFormatableTag(tagInfo: [TagInfo](#taginfo7)): [NdefFormatableTag](js-apis-nfctech.md#ndefformatabletag9)
+getNdefFormatableTag(tagInfo: [TagInfo](#taginfo)): [NdefFormatableTag](js-apis-nfctech.md#ndefformatabletag9)
 
 获取Ndef Formatable类型Tag对象，通过该对象可访问Ndef Formatable技术类型的Tag。
 
@@ -157,9 +235,25 @@ getNdefFormatableTag(tagInfo: [TagInfo](#taginfo7)): [NdefFormatableTag](js-apis
 | ------------------ | --------------------------|
 | [NdefFormatableTag](js-apis-nfctech.md#ndefformatabletag)  | Ndef Formatable类型Tag对象。 |
 
-## TagInfo<sup>7+</sup>
+## tag.getTagInfo<sup>9+</sup>
+
+getTagInfo(want: Want): [TagInfo](#taginfo)
 
-nfc服务在调度标签时给出的对象。
+从Want中获取TagInfo，Want是被NFC服务初始化，包含了TagInfo所需的属性值。
+
+**需要权限**：ohos.permission.NFC_TAG
+
+**系统能力**：SystemCapability.Communication.NFC.Core
+
+**返回值：**
+
+| **类型** | **说明**                             |
+| ------------------ | --------------------------|
+| [TagInfo](#taginfo) | TagInfo对象，用于获取不同技术类型的Tag对象。 |
+
+## TagInfo
+
+NFC服务在读取到标签时给出的对象，通过改对象属性，应用知道该标签支持哪些技术类型，并使用匹配的技术类型来调用相关接口。
 
 **需要权限**：ohos.permission.NFC_TAG
 
@@ -167,7 +261,117 @@ nfc服务在调度标签时给出的对象。
 
 | **参数名** | **类型** |  **说明** |
 | -------- | -------- | -------- |
-| uid<sup>9+</sup> | string |  标签的uid。 |
-| technology<sup>9+</sup> | number[] |  支持的技术类型。 |
-| supportedProfiles<sup>7+</sup> | number[] |  支持的技术类型。 |
+| uid<sup>9+</sup> | number[] |  标签的uid，每个number值是十六进制表示，范围是0x00~0xFF。 |
+| technology<sup>9+</sup> | number[] |  支持的技术类型，每个number值表示所支持技术类型的常量值。 |
+| supportedProfiles | number[] |  支持的技术类型，从API9开始不支持，使用technology替代。 |
+
+## NdefRecord<sup>9+</sup>
+NDEF标签Record属性的定义，参考NDEF标签技术规范《NFCForum-TS-NDEF_1.0》的定义细节。
+
+**需要权限**：ohos.permission.NFC_TAG
+
+**系统能力**：SystemCapability.Communication.NFC.Core
+| **参数名** | **类型** |  **说明** |
+| -------- | -------- | -------- |
+| tnf | number |  NDEF Record的TNF(Type Name Field)。 |
+| rtdType| number[] |  NDEF Record的RTD(Record Type Definition)类型值，每个number十六进制表示，范围是0x00~0xFF。 |
+| id | number[] |  NDEF Record的ID，每个number十六进制表示，范围是0x00~0xFF。|
+| payload | number[] |  NDEF Record的PAYLOAD，每个number十六进制表示，范围是0x00~0xFF。 |
+
+## 技术类型定义
+NFC Tag有多种不同的技术类型，定义常量描述不同的技术类型。
+
+**需要权限**：ohos.permission.NFC_TAG
+
+**系统能力**：SystemCapability.Communication.NFC.Core
+| **参数名** | **常量值** |  **说明** |
+| -------- | -------- | -------- |
+| NFC_A | 1 | NFC-A(ISO 14443-3A)技术。|
+| NFC_B  | 2 | NFC-A(ISO 14443-3B)技术。|
+| ISO_DEP | 3 | ISO-DEP(ISO 14443-4)技术。|
+| NFC_F  | 4 | NFC-F(JIS 6319-4)技术。|
+| NFC_V | 5 | NFC-V(ISO 15693)技术。|
+| NDEF  | 6 | NDEF技术。|
+| MIFARE_CLASSIC | 8 | Mifare Classic技术。|
+| MIFARE_ULTRALIGHT | 9 | Mifare Utralight技术。|
+| NDEF_FORMATABLE<sup>9+</sup> | 10 | 可以格式化的NDEF技术。|
+
+## TnfType<sup>9+</sup>
+NDEF Record的TNF(Type Name Field)类型值，参考NDEF标签技术规范《NFCForum-TS-NDEF_1.0》的定义细节。
+
+**需要权限**：ohos.permission.NFC_TAG
+
+**系统能力**：SystemCapability.Communication.NFC.Core
+| **参数名** | **常量值** |  **说明** |
+| -------- | -------- | -------- |
+| TNF_EMPTY | 0x0 | Empty。|
+| TNF_WELL_KNOWN  | 0x01 | NFC Forum well-known type [NFC RTD]。|
+| TNF_MEDIA | 0x02 | Media-type as defined in RFC 2046 [RFC 2046]。|
+| TNF_ABSOLUTE_URI  | 0x03 | Absolute URI as defined in RFC 3986 [RFC 3986]。|
+| TNF_EXT_APP | 0x04 | NFC Forum external type [NFC RTD]。|
+| TNF_UNKNOWN  | 0x05 | Unknown。|
+| TNF_UNCHANGED | 0x06 | Unchanged (see section 2.3.3)。|
+
+## RtdType<sup>9+</sup>
+NDEF Record的RTD(Record Type Definition)类型值，参考NDEF标签技术规范《NFCForum-TS-NDEF_1.0》的定义细节。
+
+**需要权限**：ohos.permission.NFC_TAG
+
+**系统能力**：SystemCapability.Communication.NFC.Core
+| **参数名** | **常量值** |  **说明** |
+| -------- | -------- | -------- |
+| RTD_TEXT | 常量 'T' |  文本类型的NDEF Record。|
+| RTD_URI  | 常量 'U' |  URI类型的NDEF Record。|
+
+## NfcForumType<sup>9+</sup>
+NFC Forum标准里面Tag类型的定义。
+
+**需要权限**：ohos.permission.NFC_TAG
+
+**系统能力**：SystemCapability.Communication.NFC.Core
+| **参数名** | **常量值** |  **说明** |
+| -------- | -------- | -------- |
+| NFC_FORUM_TYPE_1 | 1 |  NFC论坛类型1。 |
+| NFC_FORUM_TYPE_2 | 2 |  NFC论坛类型2。 |
+| NFC_FORUM_TYPE_3  | 3 |  NFC论坛类型3。 |
+| NFC_FORUM_TYPE_4  | 4 |  NFC论坛类型4。 |
+| MIFARE_CLASSIC  | 101 |   Mifare Classic类型。 |
+
+## MifareClassicType<sup>9+</sup>
+MifareClassic标签类型的定义。
+
+**需要权限**：ohos.permission.NFC_TAG
+
+**系统能力**：SystemCapability.Communication.NFC.Core
+| **参数名** | **常量值** |  **说明** |
+| -------- | -------- | -------- |
+| TYPE_UNKNOWN | -1 |  未知Mifare类型。 |
+| TYPE_CLASSIC | 0 |  Mifare Classic类型。|
+| TYPE_PLUS   | 1 |  Mifare Plus类型。|
+| TYPE_PRO  | 2 |  Mifare Pro类型。 |
+
+## MifareClassicSize<sup>9+</sup>
+MifareClassic标签存储大小的定义。
+
+**需要权限**：ohos.permission.NFC_TAG
+
+**系统能力**：SystemCapability.Communication.NFC.Core
+| **参数名** | **常量值** |  **说明** |
+| -------- | -------- | -------- |
+| MC_SIZE_MINI | 320 |  每个标签5个扇区，每个扇区4个块。 |
+| MC_SIZE_1K  | 1024 |  每个标签16个扇区，每个扇区4个块。|
+| MC_SIZE_2K   | 2048 |  每个标签32个扇区，每个扇区4个块。 |
+| MC_SIZE_4K   | 4096 |  每个标签40个扇区，每个扇区4个块。|
+
+### MifareUltralightType<sup>9+</sup>
+MifareUltralight标签类型的定义。
+
+**需要权限**：ohos.permission.NFC_TAG
+
+**系统能力**：SystemCapability.Communication.NFC.Core
+| **参数名** | **常量值** |  **说明** |
+| -------- | -------- | -------- |
+| TYPE_UNKOWN  | -1 |  未知的 Mifare 类型。 |
+| TYPE_ULTRALIGHT   | 1 |  Mifare Ultralight类型。|
+| TYPE_ULTRALIGHT_C    | 2 |  Mifare UltralightC 类型。 |
 <!--no_check-->
\ No newline at end of file

zh-cn/application-dev/reference/apis/js-apis-nfctech.md

@@ -33,16 +33,17 @@ getSak(): number
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| number  | NfcA 标签的SAK值。 |
+| number  | NfcA 标签的SAK值，十六进制表示，范围是0x00~0xFF。 |
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let sak = tag.getNfcATag(taginfo).getSak(); 
-console.log("sak:" +sak);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'nfcA' correctly.
+
+let sak = nfcA.getSak();
+console.log("nfcA sak: " + sak);
 ```
 
 ### NfcATag.getAtqa
@@ -59,16 +60,16 @@ getAtqa(): number[]
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| number[]  | NfcA 标签的Atqa值。 |
+| number[]  | NfcA 标签的Atqa值，每个number十六进制表示，范围是0x00~0xFF。 |
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let atqa = tag.getNfcATag(taginfo).getAtqa();
-console.log("atqa:" +atqa);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'nfcA' correctly.
+let atqa = nfcA.getAtqa();
+console.log("nfcA atqa: " + atqa);
 ```
 
 ## NfcBTag
@@ -93,16 +94,16 @@ getRespAppData(): number[]
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| number[]  | NfcB 标签的应用程序数据。 |
+| number[]  | NfcB 标签的应用程序数据，每个number十六进制表示，范围是0x00~0xFF。 |
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let appData = tag.getNfcBTag(taginfo).getRespAppData();  
-console.log("appData:" +appData);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'nfcB' correctly.
+let respAppData = nfcB.getRespAppData();
+console.log("nfcB respAppData: " + respAppData);
 ```
 
 ### NfcBTag.getRespProtocol
@@ -119,16 +120,16 @@ getRespProtocol(): number[]
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| number[]  | NfcB 标签的协议信息。|
+| number[]  | NfcB 标签的协议信息，每个number十六进制表示，范围是0x00~0xFF。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let protocol = tag.getNfcBTag(taginfo).getRespProtocol();
-console.log("appData:" +protocol);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'nfcB' correctly.
+let respProtocol = nfcB.getRespProtocol();
+console.log("nfcB respProtocol: " + respProtocol);
 ```
 
 ## NfcFTag
@@ -153,16 +154,16 @@ getSystemCode(): number[]
 
 | **类型** | **说明**                            |
 | ------------------ | --------------------------|
-| number[]  | NfcF 标签的系统代码。|
+| number[]  | NfcF 标签的系统代码，每个number十六进制表示，范围是0x00~0xFF。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let systemCode = tag.getNfcFTag(taginfo).getSystemCode();  
-console.log("systemCode:" +systemCode);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'nfcF' correctly.
+let systemCode = nfcF.getSystemCode();
+console.log("nfcF systemCode: " + systemCode);
 ```
 
 ### NfcFTag.getPmm
@@ -179,16 +180,16 @@ getPmm(): number[]
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| number[]  | NfcF 标签的PMm信息。|
+| number[]  | NfcF 标签的PMm信息，每个number十六进制表示，范围是0x00~0xFF。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let pmm = tag.getNfcFTag(taginfo).getPmm();
-console.log("pmm:" +pmm);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'nfcF' correctly.
+let pmm = nfcF.getPmm();
+console.log("nfcF pmm: " + pmm);
 ```
 
 ## NfcVTag
@@ -213,16 +214,16 @@ getResponseFlags(): number
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| number | NfcV 标签的响应标志。|
+| number | NfcV 标签的响应标志，十六进制表示，范围是0x00~0xFF。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let flags = tag.getNfcVTag(taginfo).getResponseFlags();  
-console.log("flags:" +flags);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'nfcV' correctly.
+let responseFlags = nfcV.getResponseFlags();
+console.log("nfcV responseFlags: " + responseFlags);
 ```
 
 ### NfcvTag.getDsfId
@@ -239,16 +240,16 @@ getDsfId(): number
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| number | NfcV 标签的数据存储格式标识符。|
+| number | NfcV 标签的数据存储格式标识符，十六进制表示，范围是0x00~0xFF。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let dsfId = tag.getNfcVTag(taginfo).getDsfId();
-console.log("dsfId:" +dsfId);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'nfcV' correctly.
+let dsfId = nfcV.getDsfId();
+console.log("nfcV dsfId: " + dsfId);
 ```
 
 ## IsoDepTag<sup>9+</sup> 
@@ -261,7 +262,7 @@ TagSession是所有Nfc tag 技术类型的基类， 提供建立连接和发送
 
 ### IsoDepTag.getHistoricalBytes<sup>9+</sup>
 
-getHistoricalBytes(): string
+getHistoricalBytes(): number[]
 
 获取标签的历史字节。
 
@@ -273,21 +274,21 @@ getHistoricalBytes(): string
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| string | IsoDepTag 标签的历史字节。|
+| number[] | IsoDepTag 标签的历史字节，每个number十六进制表示，范围是0x00~0xFF。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let historicalBytes = tag.getIsoDepTag(taginfo).getHistoricalBytes();
-console.log("historicalBytes:" +historicalBytes);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'isoDep' correctly.
+let historicalBytes = isoDep.getHistoricalBytes();
+console.log("isoDep historicalBytes: " + historicalBytes);
 ```
 
 ### IsoDepTag.getHiLayerResponse<sup>9+</sup>
 
-getHiLayerResponse(): string
+getHiLayerResponse(): number[]
 
 获取标签的HiLayer响应字节。
 
@@ -299,23 +300,23 @@ getHiLayerResponse(): string
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| string | IsoDepTag 标签的HiLayer响应字节。|
+| number[] | IsoDepTag 标签的HiLayer响应字节，每个number十六进制表示，范围是0x00~0xFF。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let hiLayerResponse = tag.getIsoDepTag(taginfo).getHiLayerResponse();
-console.log("hiLayerResponse:" +hiLayerResponse);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'isoDep' correctly.
+let hiLayerResponse = isoDep.getHiLayerResponse();
+console.log("isoDep hiLayerResponse: " + hiLayerResponse);
 ```
 
 ### IsoDepTag.isExtendedApduSupported<sup>9+</sup>
 
 isExtendedApduSupported(): Promise&lt;boolean&gt;
 
-检查是否支持外部apdu长度，使用promise方式作为异步方法。
+检查是否支持扩展的APDU，使用promise方式作为异步方法。
 
 **需要权限**：ohos.permission.NFC_TAG
 
@@ -332,17 +333,20 @@ isExtendedApduSupported(): Promise&lt;boolean&gt;
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.getIsoDepTag(taginfo).isExtendedApduSupported().then(function (has) {
-    console.log('has: ' + has)
-}) 
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'isoDep' correctly.
+isoDep.isExtendedApduSupported()
+    .then((data) => {
+        console.log("isoDep isExtendedApduSupported data: " + data);
+    }).catch((err)=> {
+        console.log("isoDep isExtendedApduSupported err: " + err);
+    });
 ```
 
 ### IsoDepTag.isExtendedApduSupported<sup>9+</sup>
 
 isExtendedApduSupported(callback: AsyncCallback\<boolean>): void
 
-检查是否支持外部apdu长度，使用callback方式作为异步方法。
+检查是否支持扩展的APDU，使用callback方式作为异步方法。
 
 **需要权限**：ohos.permission.NFC_TAG
 
@@ -357,24 +361,27 @@ isExtendedApduSupported(callback: AsyncCallback\<boolean>): void
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.getIsoDepTag(taginfo).isExtendedApduSupported(function (error, has) {
-    console.log(JSON.stringify(error))
-    console.log('has: ' + has)
-}) 
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'isoDep' correctly.
+isoDep.isExtendedApduSupported((err, data)=> {
+    if (err) {
+        console.log("isoDep isExtendedApduSupported err: " + err);
+    } else {
+        console.log("isoDep isExtendedApduSupported data: " + data);
+    }
+});
 ```
 
 ## NdefTag<sup>9+</sup>
 
 提供对已格式化为NDEF的NFC标签的数据和操作的访问，继承自TagSession。
 
-TagSession是所有Nfc tag 技术类型的基类， 提供建立连接和发送数据等共同接口。具体请参见[TagSession](js-apis-tagSession.md)。
+TagSession是所有NFC Tag技术类型的基类， 提供建立连接和发送数据等共同接口。具体请参见[TagSession](js-apis-tagSession.md)。
 
 以下是NdefTag的独有接口。
 
 ### NdefTag.createNdefMessage<sup>9+</sup>
 
-createNdefMessage(data: string): [NdefMessage](#ndefmessage9)
+createNdefMessage(data: number[]): [NdefMessage](#ndefmessage9)
 
 使用原始字节创建ndef消息。
 
@@ -386,28 +393,30 @@ createNdefMessage(data: string): [NdefMessage](#ndefmessage9)
 
 | **参数名** | **类型** | **必填** | **说明** |
 | -------- | -------- | -------- | -------- |
-| data | string | 是 | 字符串类型的原始字节 |
+| data | number[] | 是 | 原始字节，每个number十六进制表示，范围是0x00~0xFF |
 
 **返回值：**
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| [NdefMessage](#ndefmessage9) | Ndef消息 |
+| [NdefMessage](#ndefmessage9) | NDEF标签的Message，详见NDEF技术规范《NFCForum-TS-NDEF_1.0》。 |
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let NdefMessage = tag.NdefTag(taginfo).createNdefMessage(data);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let rawData = [0x00, 0xa4, 0x04, ......]; // change the raw data bytes tobe correct.
+let ndefMessage = ndef.createNdefMessage(rawData);
+console.log("ndef ndefMessage: " + ndefMessage);
 ```
 
 ## NdefMessage<sup>9+</sup>
 
 ### NdefMessage.getNdefRecords<sup>9+</sup>
 
-getNdefRecords(): [NdefRecord](#ndefrecord9)[ ]
+getNdefRecords(): [NdefRecord](js-apis-nfcTag.md#ndefrecord9)[ ]
 
 获取ndef消息的所有记录。
 
@@ -419,38 +428,23 @@ getNdefRecords(): [NdefRecord](#ndefrecord9)[ ]
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| [NdefRecord](#ndefrecord9)[ ] | Ndef消息所包含的所有记录。 |
+| [NdefRecord](js-apis-nfcTag.md#ndefrecord9)[ ] | NDEF标签的Record列表，详见NDEF技术规范《NFCForum-TS-NDEF_1.0》。 |
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let NdefRecord = tag.NdefTag(taginfo).getNdefRecords();
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let ndefRecords = ndef.getNdefRecords();
+console.log("ndef ndefRecords number: " + ndefRecords.length);
 ```
 
-## NdefRecord<sup>9+</sup>
-
-| **参数名** | **类型** |  **说明** |
-| -------- | -------- | -------- |
-| tnf | number |  标签的uid。 |
-| [rtdType](#rtdtype9) | string |  支持的技术类型。 |
-| id | string |  标签的额外信息。 |
-| payload | string |  标签的RF discovery id。 |
-
-## RtdType<sup>9+</sup>
-
-| **参数名** | **类型** |  **说明** |
-| -------- | -------- | -------- |
-| RTD_TEXT | 'T' |  记录描述文本信息。|
-| RTD_URI  | 'U' |  存储网络地址，邮件或者电话号码。|
-
 ### NdefTag.createNdefMessage<sup>9+</sup>
 
 createNdefMessage(ndefRecords: NdefRecord[]): [NdefMessage](#ndefmessage9)
 
-使用记录列表创建ndef消息。
+使用记录列表创建NDEF消息。
 
 **需要权限**：ohos.permission.NFC_TAG
 
@@ -459,21 +453,32 @@ createNdefMessage(ndefRecords: NdefRecord[]): [NdefMessage](#ndefmessage9)
 **参数：**
 | **参数名** | **类型** | **必填** | **说明** |
 | -------- | -------- | -------- | -------- |
-| ndefRecords | [NdefRecord](#ndefrecord9)[] | 是 | NdefRecord记录列表。 |
+| ndefRecords | [NdefRecord](js-apis-nfcTag.md#ndefrecord9)[] | 是 | NDEF标签的Record列表，详见NDEF技术规范《NFCForum-TS-NDEF_1.0》。 |
 
 **返回值：**
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| [NdefMessage](#ndefmessage9) | Ndef消息。|
+| [NdefMessage](#ndefmessage9) | NDEF标签的Message，详见NDEF技术规范《NFCForum-TS-NDEF_1.0》。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let NdefMessage = tag.NdefTag(taginfo).createNdefMessage(ndefRecords);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let ndefRecords = [
+    // record format: tnf, rtdType, id, payload
+    // 1st record:
+    {tnf: 0x01, rtdType: [0x54], id: [0x01, 0x02, ...], payload: [0x00, 0xa4, 0x04, ...]},
+
+    // 2nd record:
+    {tnf: 0x02, rtdType: [0x55], id: [0x03, 0x04, ...], payload: [0x00, 0xa4, 0x04, ...]},
+
+    // other record if has one ...
+];
+let ndefMessage = ndef.createNdefMessage(ndefRecords);
+console.log("ndef ndefMessage: " + ndefMessage);
 ```
 
 ### NdefTag.getNdefTagType<sup>9+</sup>
@@ -490,22 +495,23 @@ getNdefTagType(): NfcForumType
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| [NfcForumType](#nfcforumtype9) | Ndef标签类型。|
+| [NfcForumType](js-apis-nfcTag.md#nfcforumtype9) | NDEF标签类型，包括NFC FORUM TYPE 1/2/3/4等。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let NfcForumType = tag.NdefTag(taginfo).getNdefTagType();
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let ndefTagType = ndef.getNdefTagType();
+console.log("ndef ndefTagType: " + ndefTagType);
 ```
 
 ### NdefTag.getNdefMessage<sup>9+</sup>
 
 getNdefMessage(): NdefMessage
 
-获取发现标签时，从ndef标签读取的ndef消息。
+获取发现NDEF标签时，从标签读取的Message。
 
 **需要权限**：ohos.permission.NFC_TAG
 
@@ -515,22 +521,23 @@ getNdefMessage(): NdefMessage
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| [NdefMessage](#ndefmessage9)  | Ndef消息。|
+| [NdefMessage](#ndefmessage9)  | NDEF标签的Message，详见NDEF技术规范《NFCForum-TS-NDEF_1.0》。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let NdefMessage = tag.NdefTag(taginfo).getNdefMessage();
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let ndefMessage = ndef.getNdefMessage();
+console.log("ndef ndefMessage: " + ndefMessage);
 ```
 
 ### NdefTag.isNdefWritable<sup>9+</sup>
 
 isNdefWritable(): Promise&lt;boolean&gt;
 
-检查ndef标签是否可写，使用promise方式作为异步方法。
+检查NDEF标签是否可写，使用promise方式作为异步方法。
 
 **需要权限**：ohos.permission.NFC_TAG
 
@@ -547,10 +554,13 @@ isNdefWritable(): Promise&lt;boolean&gt;
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefTag(taginfo).isNdefWritable().then(function (has) {
-    console.log(JSON.stringify(has))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+ndef.isNdefWritable()
+    .then((data) => {
+        console.log("ndef isNdefWritable data: " + data);
+    }).catch((err)=> {
+        console.log("ndef isNdefWritable err: " + err);
+    });
 ```
 
 ### NdefTag.isNdefWritable<sup>9+</sup>
@@ -567,18 +577,21 @@ isNdefWritable(callback: AsyncCallback&lt;boolean&gt;): void;
 
 | 参数名   | 类型                    | 必填 | 说明                                   |
 | -------- | ----------------------- | ---- | -------------------------------------- |
-| callback | AsyncCallback\<boolean> | 是   | 回调函数，ndef标签可写，返回true。 |
+| callback | AsyncCallback\<boolean> | 是   | 回调函数，NDEF标签可写，返回true。 |
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefTag(taginfo).isNdefWritable(function (error, has) {
-    console.log(JSON.stringify(error))
-    console.log('has: ' + has)
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+ndef.isNdefWritable((err, data)=> {
+    if (err) {
+        console.log("ndef isNdefWritable err: " + err);
+    } else {
+        console.log("ndef isNdefWritable data: " + data);
+    }
+});
 ```
 
 ### NdefTag.readNdef<sup>9+</sup>
@@ -595,17 +608,20 @@ readNdef(): Promise\<NdefMessage>
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| Promise\<[NdefMessage](#ndefmessage9)> | 以Promise形式返回从标签中读取到的NdefMessage信息。|
+| Promise\<[NdefMessage](#ndefmessage9)> | 以Promise形式返回从NDEF标签中读取到的Message信息。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefTag(taginfo).readNdef().then(function (ndefMessage) {
-    console.log(JSON.stringify(ndefMessage))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+ndef.readNdef()
+    .then((data) => {
+        console.log("ndef readNdef data: " + data);
+    }).catch((err)=> {
+        console.log("ndef readNdef err: " + err);
+    });
 ```
 
 ### NdefTag.readNdef<sup>9+</sup>
@@ -629,11 +645,14 @@ readNdef(callback: AsyncCallback\<[NdefMessage](#ndefmessage9)>): void
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefTag(taginfo).readNdef(function (error, ndefMessage) {
-    console.log(JSON.stringify(error))
-    console.log('ndefMessage: ' + ndefMessage)
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+ndef.readNdef((err, data)=> {
+    if (err) {
+        console.log("ndef readNdef err: " + err);
+    } else {
+        console.log("ndef readNdef data: " + data);
+    }
+});
 ```
 
 ### NdefTag.writeNdef<sup>9+</sup>
@@ -663,10 +682,15 @@ writeNdef(msg: NdefMessage): Promise\<number>;
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-NdefTag.writeNdef(msg).then(function (netHandle) {
-    console.log(JSON.stringify(netHandle))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let ndefMessage = ndef.createNdefMessage([0x01, 0x02, ...]); // change the raw data to be correct.
+
+ndef.writeNdef(ndefMessage)
+    .then((data) => {
+        console.log("ndef writeNdef data: " + data);
+    }).catch((err)=> {
+        console.log("ndef writeNdef err: " + err);
+    });
 ```
 
 ### NdefTag.writeNdef<sup>9+</sup>
@@ -691,11 +715,15 @@ writeNdef(msg: NdefMessage, callback: AsyncCallback\<number>): void
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefTag(taginfo).write(msg, function (error, has) {
-    console.log(JSON.stringify(error))
-    console.log('has: ' + has)
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let ndefMessage = ndef.createNdefMessage([0x01, 0x02, ...]); // change the raw data to be correct.
+ndef.writeNdef(ndefMessage, (err, data)=> {
+    if (err) {
+        console.log("ndef writeNdef err: " + err);
+    } else {
+        console.log("ndef writeNdef data: " + data);
+    }
+});
 ```
 
 ### NdefTag.canSetReadOnly<sup>9+</sup>
@@ -712,17 +740,20 @@ canSetReadOnly(): Promise\<boolean>
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| Promise&lt;boolean&gt; | true: 标签可设置为只读， false: 标签不可设置为只读。 |
+| Promise&lt;boolean&gt; | true: NDEF标签可设置为只读， false: NDEF标签不可设置为只读。 |
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefTag(taginfo).canSetReadOnly().then(function (has) {
-    console.log(JSON.stringify(has))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+ndef.canSetReadOnly()
+    .then((data) => {
+        console.log("ndef canSetReadOnly data: " + data);
+    }).catch((err)=> {
+        console.log("ndef canSetReadOnly err: " + err);
+    });
 ```
 
 ### NdefTag.canSetReadOnly<sup>9+</sup>
@@ -739,18 +770,21 @@ canSetReadOnly(callback: AsyncCallback&lt;boolean&gt;): void;
 
 | 参数名   | 类型                    | 必填 | 说明                                   |
 | -------- | ----------------------- | ---- | -------------------------------------- |
-| callback | AsyncCallback\<boolean> | 是   | 回调函数，ndef标签可设置为只读，返回true。 |
+| callback | AsyncCallback\<boolean> | 是   | 回调函数，NDEF标签可设置为只读，返回true。 |
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefTag(taginfo).canSetReadOnly(function (error, has) {
-    console.log(JSON.stringify(error))
-    console.log('has: ' + has)
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+ndef.canSetReadOnly((err, data)=> {
+	if (err) {
+		console.log("ndef canSetReadOnly err: " + err);
+	} else {
+		console.log("ndef canSetReadOnly data: " + data);
+	}
+});
 ```
 
 ### NdefTag.setReadOnly<sup>9+</sup>
@@ -774,10 +808,13 @@ setReadOnly(): Promise\<number>
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefTag(taginfo).setReadOnly().then(function (errcode) {
-    console.log(JSON.stringify(errcode))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+ndef.setReadOnly()
+    .then((data) => {
+        console.log("ndef setReadOnly data: " + data);
+    }).catch((err)=> {
+        console.log("ndef setReadOnly err: " + err);
+    });
 ```
 
 ### NdefTag.setReadOnly<sup>9+</sup>
@@ -801,16 +838,19 @@ setReadOnly(callback: AsyncCallback<number>): void
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefTag(taginfo).setReadOnly(function (error, errcode) {
-    console.log(JSON.stringify(error))
-    console.log('has: ' + errcode)
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+ndef.setReadOnly((err, data)=> {
+    if (err) {
+        console.log("ndef setReadOnly err: " + err);
+    } else {
+        console.log("ndef setReadOnly data: " + data);
+    }
+});
 ```
 
 ### NdefTag.getNdefTagTypeString<sup>9+</sup>
 
-getNdefTagTypeString(type: [NfcForumType](#nfcforumtype9)): string
+getNdefTagTypeString(type: [NfcForumType](js-apis-nfcTag.md#nfcforumtype9)): string
 
 将Nfc论坛类型转换为Nfc论坛中定义的字节数组。
 
@@ -822,36 +862,25 @@ getNdefTagTypeString(type: [NfcForumType](#nfcforumtype9)): string
 
 | 参数名   | 类型                    | 必填 | 说明                                   |
 | -------- | ----------------------- | ---- | -------------------------------------- |
-| type | [NfcForumType](#nfcforumtype9) | 是   | NfcForum论坛类型。 |
+| type | [NfcForumType](js-apis-nfcTag.md#nfcforumtype9) | 是   | NDEF标签类型，包括NFC FORUM TYPE 1/2/3/4等。 |
 
 **返回值：**
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| string | Nfc论坛类型字节数组。|
+| string | NFC论坛类型的字符串描述。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let ndefTypeString= tag.NdefTag(taginfo).getNdefTagTypeString(type); 
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let ndefTypeString = ndef.getNdefTagTypeString(tag.NFC_FORUM_TYPE_1);
+console.log("ndef ndefTypeString: " + ndefTypeString);
 ```
 
-## NfcForumType<sup>9+</sup>
-
-**系统能力**：SystemCapability.Communication.NFC.Core
-
-| **参数名** | **类型** |  **说明** |
-| -------- | -------- | -------- |
-| NFC_FORUM_TYPE_1 | 1 |  NFC论坛类型1。 |
-| NFC_FORUM_TYPE_2 | 2 |  NFC论坛类型2。 |
-| NFC_FORUM_TYPE_3  | 3 |  NFC论坛类型3。 |
-| NFC_FORUM_TYPE_4  | 4 |  NFC论坛类型4。 |
-| MIFARE_CLASSIC  | 101 |   Mifare Classic类型。 |
-
-## MifareClassicTag <sup>9+</sup>
+## MifareClassicTag<sup>9+</sup>
 
 MifareClassicTag提供对MIFARE经典属性和I/O操作的访问，继承自TagSession。
 
@@ -888,10 +917,15 @@ authenticateSector(sectorIndex: number, key: number[], isKeyA: boolean): Promise
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).authenticateSector(sectorIndex, key).then(function (isKeyA) {
-        console.log(JSON.stringify(isKeyA))
-        })
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let sectorIndex = 1; // change it to be correct index.
+let key = [0x04, 0x05, ....];  // change it to be correct key.
+mifareClassic.authenticateSector(sectorIndex, key, true);
+    .then((data) => {
+        console.log("mifareClassic authenticateSector data: " + data);
+    }).catch((err)=> {
+        console.log("mifareClassic authenticateSector err: " + err);
+    });
 ```
 
 ### MifareClassicTag.authenticateSector<sup>9+</sup>
@@ -918,16 +952,21 @@ authenticateSector(sectorIndex: number, key: number[], isKeyA: boolean, callback
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).authenticateSector(sectorIndex, key, function (error, has) {
-    console.log(JSON.stringify(error))
-    console.log('has: ' + has)
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let sectorIndex = 1; // change it to be correct index.
+let key = [0x04, 0x05, ....];  // change it to be correct key.
+mifareClassic.authenticateSector(sectorIndex, key, true, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic authenticateSector err: " + err);
+    } else {
+        console.log("mifareClassic authenticateSector data: " + data);
+    }
+});
 ```
 
 ### MifareClassicTag.readSingleBlock<sup>9+</sup>
 
-readSingleBlock(blockIndex: number): Promise\<string>
+readSingleBlock(blockIndex: number): Promise\<number[]>
 
 读取标签中一个块存储的内容，一个块大小为16字节。使用promise方式作为异步方法。
 
@@ -945,23 +984,27 @@ readSingleBlock(blockIndex: number): Promise\<string>
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| Promise\<string> | 读取的块数据。 |
+| Promise\<number[]> | 读取的块数据。 |
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-let data = "xxx";
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).readSingleBlock(blockIndex).then(function (data){
-    console.log('data: ' + data)
-    })
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+mifareClassic.readSingleBlock(blockIndex, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic readSingleBlock err: " + err);
+    } else {
+        console.log("mifareClassic readSingleBlock data: " + data);
+    }
+});
 ```
 
 ### MifareClassicTag.readSingleBlock<sup>9+</sup>
 
-readSingleBlock(blockIndex: number, callback: AsyncCallback\<string>): void
+readSingleBlock(blockIndex: number, callback: AsyncCallback\<number[]>): void
 
 读取标签中一个块存储的内容，一个块大小为16字节。使用callback方式作为异步方法。
 
@@ -974,24 +1017,27 @@ readSingleBlock(blockIndex: number, callback: AsyncCallback\<string>): void
 | 参数名   | 类型                    | 必填 | 说明                                   |
 | -------- | ----------------------- | ---- | -------------------------------------- |
 | blockIndex | number | 是   | 要读取的块索引 |
-| callback | AsyncCallback\<string> | 是   | 回调函数。 |
+| callback | AsyncCallback\<number[]> | 是   | 回调函数。 |
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-let data = "xxx";
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).readSingleBlock(blockIndex, function (error, data) {
-    console.log(JSON.stringify(error))
-    console.log('data: ' + data)
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+mifareClassic.readSingleBlock(blockIndex, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic readSingleBlock err: " + err);
+    } else {
+        console.log("mifareClassic readSingleBlock data: " + data);
+    }
+});
 ```
 
 ### MifareClassicTag.writeSingleBlock<sup>9+</sup>
 
-writeSingleBlock(blockIndex: number, data: string): Promise\<number>
+writeSingleBlock(blockIndex: number, data: number[]): Promise\<number>
 
 向标签中一个块存储写入内容，一个块大小为16字节。使用promise方式作为异步方法。
 
@@ -1004,7 +1050,7 @@ writeSingleBlock(blockIndex: number, data: string): Promise\<number>
 | 参数名   | 类型                    | 必填 | 说明                                   |
 | -------- | ----------------------- | ---- | -------------------------------------- |
 | blockIndex | number | 是   | 要写入的块索引。 |
-| data | string | 是   | 要写入的数据。 |
+| data | number[] | 是   | 要写入的数据。 |
 
 **返回值：**
 
@@ -1017,16 +1063,21 @@ writeSingleBlock(blockIndex: number, data: string): Promise\<number>
 ```js
 import tag from '@ohos.nfc.tag';
 
-let data = "xxx";
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).writeSingleBlock(blockIndex, data).then(function (errcode){
-    console.log(JSON.stringify(errcode))
-    })
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+let rawData = [0x0a, 0x14, ...]; // change it to be correct data.
+mifareClassic.writeSingleBlock(blockIndex, rawData, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic writeSingleBlock err: " + err);
+    } else {
+        console.log("mifareClassic writeSingleBlock data: " + data);
+    }
+});
 ```
 
 ### MifareClassicTag.writeSingleBlock<sup>9+</sup>
 
-writeSingleBlock(blockIndex: number, data: string, callback: AsyncCallback\<number>): void
+writeSingleBlock(blockIndex: number, data: number[], callback: AsyncCallback\<number>): void
 
 向标签中一个块存储写入内容，一个块大小为16字节。使用callback方式作为异步方法。
 
@@ -1039,7 +1090,7 @@ writeSingleBlock(blockIndex: number, data: string, callback: AsyncCallback\<numb
 | 参数名   | 类型                    | 必填 | 说明                                   |
 | -------- | ----------------------- | ---- | -------------------------------------- |
 | blockIndex | number | 是   | 要写入的块索引 |
-| data | string | 是   | 要写入的数据 |
+| data | number[] | 是   | 要写入的数据 |
 | callback | AsyncCallback\<number> | 是   | 回调函数。 |
 
 **示例：**
@@ -1047,12 +1098,16 @@ writeSingleBlock(blockIndex: number, data: string, callback: AsyncCallback\<numb
 ```js
 import tag from '@ohos.nfc.tag';
 
-let data = "xxx";
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).writeSingleBlock(blockIndex, data, function (error, errcode) {
-    console.log(JSON.stringify(error))
-    console.log(JSON.stringify(errcode))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+let rawData = [0x0a, 0x14, ...]; // change it to be correct data.
+mifareClassic.writeSingleBlock(blockIndex, rawData, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic writeSingleBlock err: " + err);
+    } else {
+        console.log("mifareClassic writeSingleBlock data: " + data);
+    }
+});
 ```
 
 ### MifareClassicTag.incrementBlock<sup>9+</sup>
@@ -1083,10 +1138,16 @@ incrementBlock(blockIndex: number, value: number): Promise\<number>
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).incrementBlock(blockIndex, value).then(function (errcode){
-    console.log(JSON.stringify(errcode))
-    })
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+let value = 0x20; // change it to be correct data.
+mifareClassic.incrementBlock(blockIndex, value, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic incrementBlock err: " + err);
+    } else {
+        console.log("mifareClassic incrementBlock data: " + data);
+    }
+});
 ```
 
 ### MifareClassicTag.incrementBlock<sup>9+</sup>
@@ -1112,11 +1173,16 @@ incrementBlock(blockIndex: number, value: number, callback: AsyncCallback\<numbe
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).incrementBlock(blockIndex, value, function (error, errcode) {
-    console.log(JSON.stringify(error))
-    console.log(JSON.stringify(errcode))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+let value = 0x20; // change it to be correct data.
+mifareClassic.incrementBlock(blockIndex, value, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic incrementBlock err: " + err);
+    } else {
+        console.log("mifareClassic incrementBlock data: " + data);
+    }
+});
 ```
 
 ### MifareClassicTag.decrementBlock<sup>9+</sup>
@@ -1147,10 +1213,16 @@ decrementBlock(blockIndex: number, value: number): Promise\<number>
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).decrementBlock(blockIndex, value).then(function (errcode){
-    console.log(JSON.stringify(errcode))
-    })
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+let value = 0x20; // change it to be correct data.
+mifareClassic.decrementBlock(blockIndex, value, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic decrementBlock err: " + err);
+    } else {
+        console.log("mifareClassic decrementBlock data: " + data);
+    }
+});
 ```
 
 ### MifareClassicTag.decrementBlock<sup>9+</sup>
@@ -1176,11 +1248,16 @@ decrementBlock(blockIndex: number, value: number, callback: AsyncCallback\<numbe
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).decrementBlock(blockIndex, value, function (error, errcode) {
-    console.log(JSON.stringify(error))
-    console.log(JSON.stringify(errcode))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+let value = 0x20; // change it to be correct data.
+mifareClassic.decrementBlock(blockIndex, value, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic decrementBlock err: " + err);
+    } else {
+        console.log("mifareClassic decrementBlock data: " + data);
+    }
+});
 ```
 
 ### MifareClassicTag.transferToBlock<sup>9+</sup>
@@ -1211,13 +1288,18 @@ transferToBlock(blockIndex: number): Promise\<number>
 
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).transferToBlock(blockIndex).then(function (errcode){
-    console.log(JSON.stringify(errcode))
-    })
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+mifareClassic.transferToBlock(blockIndex, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic transferToBlock err: " + err);
+    } else {
+        console.log("mifareClassic transferToBlock data: " + data);
+    }
+});
 ```
 
-### MifareClassicTag.transferToBlock
+### MifareClassicTag.transferToBlock<sup>9+</sup>
 
 transferToBlock(blockIndex: number, callback: AsyncCallback\<number>): void
 
@@ -1239,11 +1321,15 @@ transferToBlock(blockIndex: number, callback: AsyncCallback\<number>): void
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).transferToBlock(blockIndex, function (error, errcode) {
-    console.log(JSON.stringify(error))
-    console.log(JSON.stringify(errcode))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+mifareClassic.transferToBlock(blockIndex, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic transferToBlock err: " + err);
+    } else {
+        console.log("mifareClassic transferToBlock data: " + data);
+    }
+});
 ```
 
 ### MifareClassicTag.restoreFromBlock<sup>9+</sup>
@@ -1274,10 +1360,14 @@ restoreFromBlock(blockIndex: number): Promise\<number>
 
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).restoreFromBlock(blockIndex).then(function (errcode){
-    console.log(JSON.stringify(errcode))
-    })
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+mifareClassic.restoreFromBlock(blockIndex)
+    .then((data) => {
+        console.log("mifareClassic restoreFromBlock data: " + data);
+    }).catch((err)=> {
+        console.log("mifareClassic isExtendrestoreFromBlockedApduSupported err: " + err);
+    });
 ```
 
 ### MifareClassicTag.restoreFromBlock<sup>9+</sup>
@@ -1302,11 +1392,15 @@ restoreFromBlock(blockIndex: number, callback: AsyncCallback\<number>): void
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareClassicTag(taginfo).restoreFromBlock(blockIndex, function (error, errcode) {
-    console.log(JSON.stringify(error))
-    console.log(JSON.stringify(errcode))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+mifareClassic.restoreFromBlock(blockIndex, (err, data)=> {
+    if (err) {
+        console.log("mifareClassic restoreFromBlock err: " + err);
+    } else {
+        console.log("mifareClassic restoreFromBlock data: " + data);
+    }
+});
 ```
 
 ### MifareClassicTag.getSectorCount<sup>9+</sup>
@@ -1330,8 +1424,9 @@ getSectorCount(): number
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let setorCount = tag.MifareClassicTag(taginfo).getSectorCount();
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let sectorCount = mifareClassic.getSectorCount();
+console.log("mifareClassic sectorCount: " + sectorCount);
 ```
 
 ### MifareClassicTag.getBlockCountInSector<sup>9+</sup>
@@ -1361,13 +1456,14 @@ getBlockCountInSector(sectorIndex: number): number
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let blockNumber = tag.MifareClassicTag(taginfo).getBlockCountInSector(sectorIndex);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockCountInSector = mifareClassic.getBlockCountInSector();
+console.log("mifareClassic blockCountInSector: " + blockCountInSector);
 ```
 
 ### MifareClassicTag.getType<sup>9+</sup>
 
-getType(): [MifareClassicType](#mifareclassictype9)
+getType(): [MifareClassicType](js-apis-nfcTag.md#mifareclassictype9)
 
 获取MifareClassic标签的类型。
 
@@ -1379,22 +1475,23 @@ getType(): [MifareClassicType](#mifareclassictype9)
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| [MifareClassicType](#mifareclassictype9) | MifareClassic标签的类型。|
+| [MifareClassicType](js-apis-nfcTag.md#mifareclassictype9) | MifareClassic标签的类型。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let type = tag.MifareClassicTag(taginfo).getType(); 
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let getType = mifareClassic.getType();
+console.log("mifareClassic getType: " + getType);
 ```
 
 ### MifareClassicTag.getTagSize<sup>9+</sup>
 
 getTagSize(): number
 
-获取标签的大小（字节），具体请参见[MifareTagSize](#mifaretagsize9)。
+获取标签的大小（字节），具体请参见[MifareClassicSize](js-apis-nfcTag.md#mifareclassicsize9)。
 
 **需要权限**：ohos.permission.NFC_TAG
 
@@ -1404,35 +1501,18 @@ getTagSize(): number
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| number | 标签的大小，单位为字节，请参见[MifareTagSize](#mifaretagsize9)。|
+| number | 标签的大小，单位为字节，请参见[MifareClassicSize](js-apis-nfcTag.md#mifareclassicsize9)。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let size = tag.MifareClassicTag(taginfo).getTagSize();
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let tagSize = mifareClassic.getTagSize();
+console.log("mifareClassic tagSize: " + tagSize);
 ```
 
-## MifareClassicType<sup>9+</sup>
-
-| **参数名** | **值** |  **说明** |
-| -------- | -------- | -------- |
-| TYPE_UNKNOWN | -1 |  未知Mifare类型。 |
-| TYPE_CLASSIC | 0 |  Mifare Classic类型。|
-| TYPE_PLUS   | 1 |  Mifare Plus类型。|
-| TYPE_PRO  | 2 |  Mifare Pro类型。 |
-
-## MifareTagSize<sup>9+</sup>
-
-| **参数名** | **值** |  **说明** |
-| -------- | -------- | -------- |
-| MC_SIZE_MINI | 320 |  每个标签5个扇区，每个扇区4个块。 |
-| MC_SIZE_1K  | 1024 |  每个标签16个扇区，每个扇区4个块。|
-| MC_SIZE_2K   | 2048 |  每个标签32个扇区，每个扇区4个块。 |
-| MC_SIZE_4K   | 4096 |  每个标签40个扇区，每个扇区4个块。|
-
 ### MifareClassicTag.isEmulatedTag<sup>9+</sup>
 
 isEmulatedTag(): boolean
@@ -1454,8 +1534,9 @@ isEmulatedTag(): boolean
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let isEmulated = tag.MifareClassicTag(taginfo).isEmulatedTag();
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let isEmulatedTag = mifareClassic.isEmulatedTag();
+console.log("mifareClassic isEmulatedTag: " + isEmulatedTag);
 ```
 
 ### MifareClassicTag.getBlockIndex<sup>9+</sup>
@@ -1485,8 +1566,10 @@ getBlockIndex(sectorIndex: number): number
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let index = tag.MifareClassicTag(taginfo).getBlockIndex(sectorIndex);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let sectorIndex = 1; // change it to be correct index.
+let blockIndex = mifareClassic.getBlockIndex(sectorIndex);
+console.log("mifareClassic blockIndex: " + blockIndex);
 ```
 
 ### MifareClassicTag.getSectorIndex<sup>9+</sup>
@@ -1516,8 +1599,10 @@ getSectorIndex(blockIndex: number): number
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let index = tag.MifareClassicTag(taginfo).getSectorIndex(blockIndex);
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareClassic' correctly.
+let blockIndex = 1; // change it to be correct index.
+let sectorIndex = mifareClassic.getSectorIndex(blockIndex);
+console.log("mifareClassic sectorIndex: " + sectorIndex);
 ```
 
 ## MifareUltralightTag<sup>9+</sup>
@@ -1530,7 +1615,7 @@ TagSession是所有Nfc tag 技术类型的基类， 提供建立连接和发送
 
 ### MifareUltralightTag.readMultiplePages<sup>9+</sup>
 
-readMultiplePages(pageIndex: number): Promise\<string>
+readMultiplePages(pageIndex: number): Promise\<number[]>
 
 阅读4页，共16字节。页面大小为4字节。使用promise方式作为异步方法。
 
@@ -1548,7 +1633,7 @@ readMultiplePages(pageIndex: number): Promise\<string>
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| Promise\<string> | 读取的4页的数据。 |
+| Promise\<number[]> | 读取的4页的数据。 |
 
 **示例：**
 
@@ -1556,15 +1641,19 @@ readMultiplePages(pageIndex: number): Promise\<string>
 
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareUltralightTag(taginfo).readMultiplePages(pageIndex).then(function (data){
-    console.log("data: " + data)
-    })
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareUltralight' correctly.
+let pageIndex = 1; // change it to be correct index.
+mifareUltralight.readMultiplePages(pageIndex)
+    .then((data) => {
+        console.log("mifareUltralight readMultiplePages data: " + data);
+    }).catch((err)=> {
+        console.log("mifareUltralight readMultiplePages err: " + err);
+    });
 ```
 
 ### MifareUltralightTag.readMultiplePages<sup>9+</sup>
 
-readMultiplePages(pageIndex: number, callback: AsyncCallback\<string>): void
+readMultiplePages(pageIndex: number, callback: AsyncCallback\<number[]>): void
 
 阅读4页，共16字节。页面大小为4字节。使用callback方式作为异步方法。
 
@@ -1577,23 +1666,27 @@ readMultiplePages(pageIndex: number, callback: AsyncCallback\<string>): void
 | 参数名   | 类型                    | 必填 | 说明                                   |
 | -------- | ----------------------- | ---- | -------------------------------------- |
 | pageIndex | number | 是   | 要读取页面的索引 |
-| callback | AsyncCallback\<string> | 是   | 回调函数。 |
+| callback | AsyncCallback\<number[]> | 是   | 回调函数。 |
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareUltralightTag(taginfo).readMultiplePages(pageIndex, function (error, data) {
-    console.log(JSON.stringify(error))
-    console.log(JSON.stringify(data))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareUltralight' correctly.
+let pageIndex = 1; // change it to be correct index.
+mifareUltralight.readMultiplePages(pageIndex, (err, data)=> {
+    if (err) {
+        console.log("mifareUltralight readMultiplePages err: " + err);
+    } else {
+        console.log("mifareUltralight readMultiplePages data: " + data);
+    }
+});
 ```
 
 ### MifareUltralightTag.writeSinglePages<sup>9+</sup>
 
-writeSinglePages(pageIndex: number, data: string): Promise\<number>
+writeSinglePages(pageIndex: number, data: number[]): Promise\<number>
 
 写入一页数据，页面大小为4字节。使用promise方式作为异步方法。
 
@@ -1606,7 +1699,7 @@ writeSinglePages(pageIndex: number, data: string): Promise\<number>
 | 参数名   | 类型                    | 必填 | 说明                                   |
 | -------- | ----------------------- | ---- | -------------------------------------- |
 | pageIndex | number | 是   | 要写入页面的索引。 |
-| data | string | 是   | 要写入页面的数据内容。 |
+| data | number[] | 是   | 要写入页面的数据内容。 |
 
 **返回值：**
 
@@ -1619,15 +1712,20 @@ writeSinglePages(pageIndex: number, data: string): Promise\<number>
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareUltralightTag(taginfo).writeSinglePages(pageIndex, data).then(function (errcode){
-    console.log(JSON.stringify(errcode))
-    })
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareUltralight' correctly.
+let pageIndex = 1; // change it to be correct index.
+let data = [0x01, 0x02, ...]; // change it to be correct raw data.
+mifareUltralight.writeSinglePages(pageIndex, data)
+    .then((data) => {
+        console.log("mifareUltralight writeSinglePages data: " + data);
+    }).catch((err)=> {
+        console.log("mifareUltralight writeSinglePages err: " + err);
+    });
 ```
 
 ### MifareUltralightTag.writeSinglePages<sup>9+</sup>
 
-writeSinglePages(pageIndex: number, data: string, callback: AsyncCallback\<number>): void
+writeSinglePages(pageIndex: number, data: number[], callback: AsyncCallback\<number>): void
 
 写入一页数据，页面大小为4字节。使用callback方式作为异步方法。
 
@@ -1640,7 +1738,7 @@ writeSinglePages(pageIndex: number, data: string, callback: AsyncCallback\<numbe
 | 参数名   | 类型                    | 必填 | 说明                     |
 | -------- | ----------------------- | ---- | ------------------------ |
 | pageIndex | number | 是   | 要写入页面的索引。 |
-| data | string | 是   | 要写入页面的数据内容。 |
+| data | number[] | 是   | 要写入页面的数据内容。 |
 | callback|AsyncCallback\<number> |是| 回调函数。 |
 
 **示例：**
@@ -1648,18 +1746,23 @@ writeSinglePages(pageIndex: number, data: string, callback: AsyncCallback\<numbe
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.MifareUltralightTag(taginfo).writeSinglePages(pageIndex, data, function (error, errcode) {
-    console.log(JSON.stringify(error))
-    console.log(JSON.stringify(errcode))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareUltralight' correctly.
+let pageIndex = 1; // change it to be correct index.
+let data = [0x01, 0x02, ...]; // change it to be correct raw data.
+mifareUltralight.writeSinglePages(pageIndex, data, (err, data)=> {
+    if (err) {
+        console.log("mifareUltralight writeSinglePages err: " + err);
+    } else {
+        console.log("mifareUltralight writeSinglePages data: " + data);
+    }
+});
 ```
 
 ### MifareUltralightTag.getType<sup>9+</sup>
 
 getType(): MifareUltralightType
 
-获取MifareUltralight标签的类型，以字节形式返回，具体请参见 [MifareUltralightType](#mifareultralighttype9)。
+获取MifareUltralight标签的类型，以字节形式返回，具体请参见 [MifareUltralightType](js-apis-nfcTag.md#mifareultralighttype9)。
 
 **需要权限**：ohos.permission.NFC_TAG
 
@@ -1669,25 +1772,18 @@ getType(): MifareUltralightType
 
 | **类型** | **说明**                             |
 | ------------------ | --------------------------|
-| MifareUltralightType | MifareUltralight标签的类型, 具体请参见 [MifareUltralightType](#mifareultralighttype9)。|
+| MifareUltralightType | MifareUltralight标签的类型, 具体请参见 [MifareUltralightType](js-apis-nfcTag.md#mifareultralighttype9)。|
 
 **示例：**
 
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-let type = tag.MifareUltralightType(taginfo).getType(); 
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'mifareUltralight' correctly.
+let getType = mifareClassic.getType();
+console.log("mifareUltralight getType: " + getType);
 ```
 
-### MifareUltralightType<sup>9+</sup>
-
-| **参数名** | **值** |  **说明** |
-| -------- | -------- | -------- |
-| TYPE_UNKOWN  | -1 |  未知的 Mifare 类型。 |
-| TYPE_ULTRALIGHT   | 1 |  Mifare Ultralight类型。|
-| TYPE_ULTRALIGHT_C    | 2 |  Mifare UltralightC 类型。 |
-
 ## NdefFormatableTag<sup>9+</sup>
 
 NdefFormatableTag为NDEF formattable的标签提供格式化操作，继承自TagSession。
@@ -1723,10 +1819,18 @@ format(message: [NdefMessage](#ndefmessage9)): Promise\<number>
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefFormatableTag(taginfo).format(message).then(function (errcode){
-    console.log(JSON.stringify(errcode))
-    })
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let data = [0x01, 0x02, ...]; // change it to be correct raw data.
+let ndefmessage = ndef.createNdefMessage(data);
+
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndefFormatable' correctly.
+ndefFormatable.format(ndefmessage, (err, data)=> {
+    if (err) {
+        console.log("ndefFormatable format err: " + err);
+    } else {
+        console.log("ndefFormatable format data: " + data);
+    }
+});
 ```
 
 ### NdefFormatableTag.format<sup>9+</sup>
@@ -1757,11 +1861,18 @@ format(message: [NdefMessage](#ndefmessage9), callback: AsyncCallback\<number>):
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefFormatableTag(taginfo).format(message, function (error, errcode) {
-    console.log(JSON.stringify(error))
-    console.log(JSON.stringify(errcode))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let data = [0x01, 0x02, ...]; // change it to be correct raw data.
+let ndefmessage = ndef.createNdefMessage(data);
+
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndefFormatable' correctly.
+ndefFormatable.format(ndefmessage, (err, data)=> {
+    if (err) {
+        console.log("ndefFormatable format err: " + err);
+    } else {
+        console.log("ndefFormatable format data: " + data);
+    }
+});
 ```
 
 ### NdefFormatableTag.formatReadOnly<sup>9+</sup>
@@ -1791,10 +1902,18 @@ formatReadOnly(message: [NdefMessage](#ndefmessage9)): Promise\<number>
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefFormatableTag(taginfo).formatReadOnly(message).then(function (errcode){
-    console.log(JSON.stringify(errcode))
-    })
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let data = [0x01, 0x02, ...]; // change it to be correct raw data.
+let ndefmessage = ndef.createNdefMessage(data);
+
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndefFormatable' correctly.
+ndefFormatable.formatReadOnly(ndefmessage, (err, data)=> {
+    if (err) {
+        console.log("ndefFormatable formatReadOnly err: " + err);
+    } else {
+        console.log("ndefFormatable formatReadOnly data: " + data);
+    }
+});
 ```
 
 ### NdefFormatableTag.formatReadOnly<sup>9+</sup>
@@ -1825,9 +1944,16 @@ formatReadOnly(message: [NdefMessage](#ndefmessage9), callback: AsyncCallback\<n
 ```js
 import tag from '@ohos.nfc.tag';
 
-// tagInfo is an Object given by nfc service when tag is dispatched.
-tag.NdefFormatableTag(taginfo).formatReadOnly(message, function (error, errcode) {
-    console.log(JSON.stringify(error))
-    console.log(JSON.stringify(errcode))
-})
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndef' correctly.
+let data = [0x01, 0x02, ...]; // change it to be correct raw data.
+let ndefmessage = ndef.createNdefMessage(data);
+
+// see 'tag.TagInfo' at 'js-apis-nfcTag', has obtained the 'ndefFormatable' correctly.
+ndefFormatable.formatReadOnly(ndefmessage, (err, data)=> {
+    if (err) {
+        console.log("ndefFormatable formatReadOnly err: " + err);
+    } else {
+        console.log("ndefFormatable formatReadOnly data: " + data);
+    }
+});
 ```