update zh-cn/application-dev/reference/arkui-ts/ts-basic-gestures-longpressgesture.md.

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

zh-cn/application-dev/reference/arkui-ts/ts-basic-gestures-longpressgesture.md

 # LongPressGesture
 
-用于触发长按手势事件，触发长按手势的最少手指数为1，最短时间为500毫秒。
+用于触发长按手势事件，触发长按手势的最少手指数为1，最短长按时间为500毫秒。
 
 >  **说明：**
 >
@@ -36,24 +36,31 @@ LongPressGesture(value?: { fingers?: number, repeat?: boolean, duration?: number
 @Entry
 @Component
 struct LongPressGestureExample {
-  @State count: number = 0
+  @State count: number = 0;
 
   build() {
-    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.SpaceBetween }) {
-      Text('LongPress onAction:' + this.count)
+    Column() {
+      Text('LongPress onAction:' + this.count).fontSize(28)
+        //单指长按文本触发该手势事件
+        .gesture(
+        LongPressGesture({ repeat: true })
+          //由于repeat设置为true，长按动作存在时会连续触发，触发间隔为duration（默认值500ms）
+          .onAction((event: GestureEvent) => {
+            if (event.repeat) {
+              this.count++;
+            }
+          })
+            //长按动作一结束触发
+          .onActionEnd(() => {
+            this.count = 0;
+          })
+        )
     }
-    .height(200).width(300).padding(60).border({ width:1 }).margin(30)
-    .gesture(
-      LongPressGesture({ repeat: true })
-        // 长按动作存在会连续触发
-        .onAction((event: GestureEvent) => {
-          if (event.repeat) { this.count++ }
-        })
-        // 长按动作一结束触发
-        .onActionEnd(() => {
-          this.count = 0
-        })
-    )
+    .height(200)
+    .width(300)
+    .padding(20)
+    .border({ width: 3 })
+    .margin(30)
   }
 }
 ```