HarmonyOS 子窗口的@Entry要也能响应router，如何实现

@Entry 
@Component 
export struct Page1{ 
}

import { Page1 } from 'Page1路径' 
@Entry 
@Component 
export struct Page2{ 
  build() { 
    Column() { 
      Page1() 
    } 
  } 
}