helloworld实例

// An example of displaying Hello World. After you click the button, Hello UI is displayed.
@Entry
@Component
struct Hello {
    @State myText: string = 'World'
    build() {
        Column() {
            Text('Hello')
                .fontSize(30)
            Text(this.myText)
                .fontSize(32)
            Divider()
            Button() {
                Text('Click me')
                .fontColor(Color.Red)
            }.onClick(() => {
                this.myText = 'UI'
            })
            .width(500)
            .height(200)
        }
    }
}