ts-basic-components-text.md

# Text

文本，用于呈现一段信息。

>  **说明：**
>
>  该组件从API Version 7开始支持。后续版本如有新增内容，则采用上角标单独标记该内容的起始版本。


## 权限列表

无


## 子组件

可以包含[Span](ts-basic-components-span.md)子组件。


## 接口

Text(content?: ResourceStr)

**参数：**

| 参数名     | 参数类型   | 必填   | 默认值  | 参数描述                                     |
| ------- | ------ | ---- | ---- | ---------------------------------------- |
| content | [ResourceStr](../../ui/ts-types.md) | 否    | ''   | 文本内容。包含子组件Span时不生效，显示Span内容，并且此时text组件的样式不生效。 |

## 属性

| 名称             | 参数类型                                     | 默认值                                      | 描述                                       |
| -------------- | ---------------------------------------- | ---------------------------------------- | ---------------------------------------- |
| textAlign      | [TextAlign](ts-appendix-enums.md#textalign)       | TextAlign.Start                          | 设置多行文本的文本对齐方式。                           |
| textOverflow   | {overflow:&nbsp;[TextOverflow](ts-appendix-enums.md#textoverflow)}            | {overflow:&nbsp;TextOverflow.Clip}       | 设置文本超长时的显示方式。<br/>**说明：**<br/>文本截断是按字截断。例如，英文以单词为最小单位进行截断，若需要以字母为单位进行截断，可在字母间添加零宽空格：\u200B。 |
| maxLines       | number                                   | Infinity                                 | 设置文本的最大行数。                               |
| lineHeight     | string&nbsp;\|&nbsp;number&nbsp;\|&nbsp;[Resource](../../ui/ts-types.md)  | - | 设置文本的文本行高，设置值不大于0时，不限制文本行高，自适应字体大小，Length为number类型时单位为fp。 |
| decoration     | {<br/>type:&nbsp;[TextDecorationType](ts-appendix-enums.md#textdecorationtype),<br/>color?:&nbsp;[ResourceColor](../../ui/ts-types.md)<br/>} | {<br/>type:&nbsp;TextDecorationType.None,<br/>color：Color.Black<br/>} | 设置文本装饰线样式及其颜色。                           |
| baselineOffset | [Length](../../ui/ts-types.md)         | -         | 设置文本基线的偏移量。                              |
| textCase       | [TextCase](ts-appendix-enums.md#textcase)          | TextCase.Normal                          | 设置文本大小写。                                 |


>  **说明：**
>
>  不支持Text内同时存在文本内容和Span子组件。（如果同时存在，只显示Span内的内容)。


## 示例

```ts
// xxx.ets
@Entry
@Component
struct TextExample1 {
  build() {
    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Start, justifyContent: FlexAlign.SpaceBetween }) {
      Text('lineHeight').fontSize(9).fontColor(0xCCCCCC)
      Text('This is the text with the line height set This is the text with the line height set This is the text with the line height set.')
        .lineHeight(25).fontSize(12).border({ width: 1 }).padding(10)

      Text('TextOverflow').fontSize(9).fontColor(0xCCCCCC)
      Text('This is the setting of textOverflow to none text content This is the setting of textOverflow to none text content.')
        .textOverflow({ overflow: TextOverflow.None })
        .fontSize(12).border({ width: 1 }).padding(10)
      Text('This is the setting of textOverflow to Clip text content This is the setting of textOverflow to Clip text content.')
        .textOverflow({ overflow: TextOverflow.Clip })
        .maxLines(1).fontSize(12).border({ width: 1 }).padding(10)
      Text('This is set textOverflow to Ellipsis text content This is set textOverflow to Ellipsis text content.'.split('').join('\u200B'))
        .textOverflow({ overflow: TextOverflow.Ellipsis })
        .maxLines(1).fontSize(12).border({ width: 1 }).padding(10)

      Text('decoration').fontSize(9).fontColor(0xCCCCCC)
      Text('This is the text content with the decoration set to Underline and the color set to Red.')
        .decoration({ type: TextDecorationType.Underline, color: Color.Red })
        .fontSize(12).border({ width: 1 }).padding(10)
      Text('This is the text content with the decoration set to LineThrough and the color set to Red.')
        .decoration({ type: TextDecorationType.LineThrough, color: Color.Red })
        .fontSize(12).border({ width: 1 }).padding(10)
      Text('This is the text content with the decoration set to Overline and the color set to Red.')
        .decoration({ type: TextDecorationType.Overline, color: Color.Red })
        .fontSize(12).border({ width: 1 }).padding(10)
    }.height(600).width(350).padding({ left: 35, right: 35, top: 35 })
  }
}
```

![zh-cn_image_0000001219864155](figures/zh-cn_image_0000001219864155.gif)

```ts
// xxx.ets
@Entry
@Component
struct TextExample2 {
  build() {
    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Start, justifyContent: FlexAlign.SpaceBetween }) {
      Text('textCase').fontSize(9).fontColor(0xCCCCCC)
      Text('This is the text content with textCase set to Normal.')
        .textCase(TextCase.Normal)
        .fontSize(12).border({ width: 1 }).padding(10).width('100%')
      Text('This is the text content with textCase set to LowerCase.')
        .textCase(TextCase.LowerCase)
        .fontSize(12).border({ width: 1 }).padding(10).width('100%')
      Text('This is the text content with textCase set to UpperCase.')
        .textCase(TextCase.UpperCase)
        .fontSize(12).border({ width: 1 }).padding(10)

      Text('textAlign').fontSize(9).fontColor(0xCCCCCC)
      Text('This is the text content with textAlign set to Center.')
        .textAlign(TextAlign.Center)
        .fontSize(12).border({ width: 1 }).padding(10).width('100%')
      Text('This is the text content with textAlign set to Start.')
        .textAlign(TextAlign.Start)
        .fontSize(12).border({ width: 1 }).padding(10).width('100%')
      Text('This is the text content with textAlign set to End.')
        .textAlign(TextAlign.End)
        .fontSize(12).border({ width: 1 }).padding(10).width('100%')

      Text('baselineOffset').fontSize(9).fontColor(0xCCCCCC)
      Text('This is the text content with baselineOffset set to 10.')
        .baselineOffset(10).fontSize(12).border({ width: 1 }).padding(10).width('100%')
      Text('This is the text content with baselineOffset set to 30.')
        .baselineOffset(30).fontSize(12).border({ width: 1 }).padding(10).width('100%')
      Text('This is the text content with baselineOffset set to -10.')
        .baselineOffset(-10).fontSize(12).border({ width: 1 }).padding(10).width('100%')
    }.height(700).width(350).padding({ left: 35, right: 35, top: 35 })
  }
}
```

![zh-cn_image_0000001174422918](figures/zh-cn_image_0000001174422918.gif)