update zh-cn/application-dev/reference/arkui-ts/ts-universal-events-touch.md.

Signed-off-by: Nluoying_ace <luoying19@huawei.com>

zh-cn/application-dev/reference/arkui-ts/ts-universal-events-touch.md

 # 触摸事件
 
-当手指放在组件上、滑动或从组件上移开时触发。
+当手指在组件上按下、滑动、抬起时触发。
 
 > **说明：**
 >
@@ -11,7 +11,7 @@
 
 | 名称                                                         | 是否冒泡 | 功能描述                                                     |
 | ------------------------------------------------------------ | -------- | ------------------------------------------------------------ |
-| onTouch(event: (event?: TouchEvent) => void) | 是       | 触摸动作触发该方法调用，event参数见[TouchEvent](#touchevent对象说明)介绍。 |
+| onTouch(event: (event?: TouchEvent) => void) | 是       | 手指触摸动作触发该回调，event返回值见[TouchEvent](#touchevent对象说明)介绍。 |
 
 
 ## TouchEvent对象说明
@@ -45,29 +45,45 @@
 @Entry
 @Component
 struct TouchExample {
-  @State text: string = ''
-  @State eventType: string = ''
+  @State text: string = '';
+  @State eventType: string = '';
 
   build() {
-    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.SpaceBetween }) {
-      Button('Touch').backgroundColor(0x2788D9).height(40).width(80)
+    Column() {
+      Button('Touch').height(40).width(100)
         .onTouch((event: TouchEvent) => {
           if (event.type === TouchType.Down) {
-            this.eventType = 'Down'
+            this.eventType = 'Down';
           }
           if (event.type === TouchType.Up) {
-            this.eventType = 'Up'
+            this.eventType = 'Up';
           }
           if (event.type === TouchType.Move) {
-            this.eventType = 'Move'
+            this.eventType = 'Move';
           }
-          console.info(this.text = 'TouchType:' + this.eventType + '\nDistance between touch point and touch element:\nx: '
-          + event.touches[0].x + '\n' + 'y: ' + event.touches[0].y + '\ncomponent globalPos:('
+          this.text = 'TouchType:' + this.eventType + '\nDistance between touch point and touch element:\nx: '
+          + event.touches[0].x + '\n' + 'y: ' + event.touches[0].y + '\nComponent globalPos:('
           + event.target.area.globalPosition.x + ',' + event.target.area.globalPosition.y + ')\nwidth:'
-          + event.target.area.width + '\nheight:' + event.target.area.height)
+          + event.target.area.width + '\nheight:' + event.target.area.height;
+        })
+      Button('Touch').height(50).width(200).margin(20)
+        .onTouch((event: TouchEvent) => {
+          if (event.type === TouchType.Down) {
+            this.eventType = 'Down';
+          }
+          if (event.type === TouchType.Up) {
+            this.eventType = 'Up';
+          }
+          if (event.type === TouchType.Move) {
+            this.eventType = 'Move';
+          }
+          this.text = 'TouchType:' + this.eventType + '\nDistance between touch point and touch element:\nx: '
+          + event.touches[0].x + '\n' + 'y: ' + event.touches[0].y + '\nComponent globalPos:('
+          + event.target.area.globalPosition.x + ',' + event.target.area.globalPosition.y + ')\nwidth:'
+          + event.target.area.width + '\nheight:' + event.target.area.height;
         })
       Text(this.text)
-    }.height(200).width(350).padding({ left: 35, right: 35, top: 35 })
+    }.width('100%').padding(30)
   }
 }
 ```