Modification review suggestions

Signed-off-by: Nxinking129 <xinxin13@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-inner-application-uiAbilityContext.md

@@ -2605,7 +2605,7 @@ startAbilityByCallWithAccount(want: Want, accountId: number): Promise<Caller&
 
 reportDrawnCompleted(callback: AsyncCallback<void>): void;
 
-页面加载完成时为开发者提供打点功能(callback形式)
+当页面加载完成（loadContent成功）时，为开发者提供打点功能(callback形式)
 
  **系统能力**：SystemCapability.Ability.AbilityRuntime.Core
 
@@ -2627,6 +2627,11 @@ reportDrawnCompleted(callback: AsyncCallback<void>): void;
 **示例：**
 
   ```ts
+onWindowStageCreate(windowStage: Window.WindowStage) {
+    windowStage.loadContent('pages/Index', (err, data) => {
+        if (err.code) {
+            return;
+        }
         try {
             this.context.reportDrawnCompleted((err) => {
                 if (err.code) {
@@ -2641,4 +2646,7 @@ reportDrawnCompleted(callback: AsyncCallback<void>): void;
             // 捕获同步的参数错误
             console.error(`reportDrawnCompleted failed, code is ${err.code}, message is ${err.message}`);
         }
+    });
+    console.log("MainAbility onWindowStageCreate")
+}
   ```
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