diff --git a/zh-cn/application-dev/reference/apis/js-apis-matrix4.md b/zh-cn/application-dev/reference/apis/js-apis-matrix4.md
index a53809173e6b63a26bfe5768a870991171ac22e7..5f07667259c42a4651a409ba78dab990d13fe388 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-matrix4.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-matrix4.md
@@ -148,7 +148,7 @@ import matrix4 from '@ohos.matrix4'
 @Entry
 @Component
 struct Test {
-  private matrix1 = Matrix4.identity().translate({x:100})
+  private matrix1 = matrix4.identity().translate({x:100})
   private matrix2 = this.matrix1.copy().scale({x:2})
 
   build() {
diff --git a/zh-cn/application-dev/reference/arkui-js/js-components-basic-slider.md b/zh-cn/application-dev/reference/arkui-js/js-components-basic-slider.md
index b7c5fdc2ae5372dde1cea4125843e0a59c381242..142d6c90300829ff945e86886b178c7a0b2fc86d 100644
--- a/zh-cn/application-dev/reference/arkui-js/js-components-basic-slider.md
+++ b/zh-cn/application-dev/reference/arkui-js/js-components-basic-slider.md
@@ -1,6 +1,7 @@
 # slider
 
 >  **说明：**
+>
 > 从API version 4开始支持。后续版本如有新增内容，则采用上角标单独标记该内容的起始版本。
 
 滑动条组件，用来快速调节设置值，如音量、亮度等。
@@ -94,7 +95,7 @@ export default {
     } else if (e.mode == "end") {
       this.value = e.value;
       this.endValue = e.value;
-    } else if (e.mode == "click) {
+    } else if (e.mode == "click") {
       this.value = e.value;
       this.currentValue = e.value;
     }
diff --git a/zh-cn/application-dev/reference/arkui-ts/ts-basic-components-image.md b/zh-cn/application-dev/reference/arkui-ts/ts-basic-components-image.md
index e8e04417715a97e95f834d5f3002f9b06c0642dc..95ea376b2a4dec554b07cc11bcb75c95eff7dbf1 100644
--- a/zh-cn/application-dev/reference/arkui-ts/ts-basic-components-image.md
+++ b/zh-cn/application-dev/reference/arkui-ts/ts-basic-components-image.md
@@ -320,7 +320,7 @@ struct ImageExample3 {
             .onError(() => {
               console.log('load image fail')
             })
-            .overlay('\nwidth: ' + String(this.width) + ' height: ' + String(this.height), {
+            .overlay('\nwidth: ' + String(this.widthValue) + ' height: ' + String(this.heightValue), {
               align: Alignment.Bottom,
               offset: { x: 0, y: 20 }
             })