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 | @Entry@Component
 struct Hello{
 
 @State myText: string = 'World';
 
 build(){
 
 Column(){
 Text(`Hello ${this.myText}`)
 .fontSize(50)
 Divider()
 Button('click me')
 .onClick(()=>{
 this.myText - "ArkUI"
 })
 .height(50)
 .width(100)
 .margin({ top: 20})
 }
 }
 }
 
 |