如何实现文本竖向排列
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可以通过设置Text组件宽度width与字号一致的方式实现。参考代码如下：

@Entry
@Component
struct Index {
  private message: string = 'This document is suitable for beginners in application development. By building a simple application with page jump/return function, quickly understand the main files of the project directory and familiarize yourself with the application development process.';
  build() {
    Column() {
      Text(this.message)
        .fontSize(13)
        .width(13)
    }
  }
}