Scroll组件内显示不全问题

@Entry 
@Component 
struct ScrollTest { 
  scroller: Scroller = new Scroller() 
 
  build() { 
    Column() { 
      Column() { 
        Text('testText') 
          .height(100) 
        Scroll() { 
          Column() { 
            Button('Securetest') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
              .onClick(() => { 
              }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
            Button('test20') 
              .width('100%') 
              .height(50) 
              .margin({ bottom: 2 }) 
          } 
        } 
      } 
    } 
  } 
}