update zh-cn/application-dev/ui/ts-custom-component-lifecycle-callbacks.md.

Signed-off-by: N LiAn <lian15@huawei.com>

update zh-cn/application-dev/ui/ts-custom-component-lifecycle-callbacks.md.
Signed-off-by: N LiAn <lian15@huawei.com>
56295ada · LiAn · Gitee · 099d169c · 56295ada
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zh-cn/application-dev/ui/ts-custom-component-lifecycle-callbacks.md ...ication-dev/ui/ts-custom-component-lifecycle-callbacks.md +1 -0

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--- a/zh-cn/application-dev/ui/ts-custom-component-lifecycle-callbacks.md
+++ b/zh-cn/application-dev/ui/ts-custom-component-lifecycle-callbacks.md
@@ -17,6 +17,7 @@
 ## 示例
 ```
+@Entry
 @Component
 struct CountDownTimerComponent {
    @State countDownFrom: number = 10