diff --git a/entry/src/main/ets/entryability/EntryAbility.ets b/entry/src/main/ets/entryability/EntryAbility.ets
index 10efa7f7e71469b5899463081193a19cb1e8b7cc..ebc42a754ba5398da4177adcbcae1c1a6a1f5a12 100644
--- a/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/entry/src/main/ets/entryability/EntryAbility.ets
@@ -31,8 +31,9 @@ export default class EntryAbility extends UIAbility {
     hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');
 
     windowStage.loadContent('pages/Index', (err) => {
-      let windowClass: window.Window = windowStage.getMainWindowSync(); // 获取应用主窗口
-      // 1. 设置窗口全屏
+      // get main window.
+      let windowClass: window.Window = windowStage.getMainWindowSync();
+      // set full screen.
       let isLayoutFullScreen = true;
       windowClass.setWindowLayoutFullScreen(isLayoutFullScreen)
         .then(() => {