diff --git a/zh-cn/application-dev/reference/apis/js-apis-window.md b/zh-cn/application-dev/reference/apis/js-apis-window.md
index ff45b896576008a906846753b579d928b04cbaf1..3001213300e8c77251881428d9e24a228440a0c8 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-window.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-window.md
@@ -189,7 +189,7 @@ getAbilityWindowMode(callback: AsyncCallback<WindowMode>): void
   ```
   window.getAbilityWindowMode((err, data) => {
       if (err) {
-          console.error(''Failed to obtain the window mode. Cause:' + JSON.stringify(err));
+          console.error('Failed to obtain the window mode. Cause:' + JSON.stringify(err));
           return;
       }
       console.info('Window mode obtained. Data:' + JSON.stringify(data))