Signed-off-by: mayunteng_1 <mayunteng@huawei.com>

Change-Id: I3b92d6bc1ef720d8f5a5ef3b05fdf240fdae49ae

en/application-dev/reference/apis/js-apis-inputconsumer.md

@@ -68,7 +68,8 @@ This is a system API.
 **Example**
 
 ```
-let keyOptions = {preKeys: [], finalKey: 3, isFinalKeyDown: true, finalKeyDownDuration: 0}
+// 18为电源键键值
+let keyOptions = {preKeys: [], finalKey: 18, isFinalKeyDown: true, finalKeyDownDuration: 0}
 let callback = function(keyOptions) {
     console.info("preKeys: " + keyOptions.preKeys, "finalKey: " + keyOptions.finalKey, 
                  "isFinalKeyDown: " + keyOptions.isFinalKeyDown, "finalKeyDownDuration: " + keyOptions.finalKeyDownDuration)

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

@@ -36,7 +36,8 @@ on(type: "key", keyOptions: KeyOptions, callback: Callback<KeyOptions>): v
 **示例：** 
 
 ```js
-let keyOptions = { preKeys: [], finalKey: 3, isFinalKeyDown: true, finalKeyDownDuration: 0 }
+// 18为电源键键值
+let keyOptions = { preKeys: [], finalKey: 18, isFinalKeyDown: true, finalKeyDownDuration: 0 }
 let callback = function (keyOptions) {
   console.info("preKeys: " + keyOptions.preKeys, "finalKey: " + keyOptions.finalKey,
     "isFinalKeyDown: " + keyOptions.isFinalKeyDown, "finalKeyDownDuration: " + keyOptions.finalKeyDownDuration)
@@ -68,7 +69,8 @@ off(type: "key", keyOptions: KeyOptions, callback?: Callback<KeyOptions>):
 **示例：** 
 
 ```js
-let keyOptions = { preKeys: [], finalKey: 3, isFinalKeyDown: true, finalKeyDownDuration: 0 }
+// 18为电源键键值
+let keyOptions = { preKeys: [], finalKey: 18, isFinalKeyDown: true, finalKeyDownDuration: 0 }
 let callback = function (keyOptions) {示例：**
   console.info("preKeys: " + keyOptions.preKeys, "finalKey: " + keyOptions.finalKey,
     "isFinalKeyDown: " + keyOptions.isFinalKeyDown, "finalKeyDownDuration: " + keyOptions.finalKeyDownDuration)