开发原生鸿蒙的时候，出现了下面的提示：
[Compile Result] ArkTS:WARN File: G:/work/testApp/entry/src/main/ets/pages/Profile.ets:4:1
[Compile Result] It's not a recommended way to export struct with @Entry decorator, which may cause ACE Engine error in component preview mode.
代码如下：
@Entry
@Component
export default struct User {
topRectHeight: string = AppStorage.get<number>('topRectHeight') + 'px';
aboutToAppear(): void {
font.registerFont({
familyName: 'iconfont',
familySrc: '/fonts/iconfont.ttf'
})
}
//....仔细看，这是页面，竟然在struct前面写了导出，删掉“export default”即可。不过不删除也不影响，就是有这个warning提示。