优化返回首页按钮

h5/pages/components/goHome.vue

@@ -17,16 +17,17 @@ const button = ref(null);
 let startX, startY, posX, posY, mouseMoveTracker, mouseUpTracker;
 
 const goHome = () => {
-  console.log(11);
   uni.reLaunch({ url: "/pages/main/index/index" });
 };
 
 const dragButton = (event) => {
   // event.preventDefault();
-
-  // 初始化坐标
-  startX = event.touches[0]?.clientX - button.value.offsetLeft;
-  startY = event.touches[0]?.clientY - button.value.offsetTop;
+  console.log(event.touches, "48566546546545");
+  if (event.touches) {
+    // 初始化坐标
+    startX = event.touches[0]?.clientX - button.value.offsetLeft;
+    startY = event.touches[0]?.clientY - button.value.offsetTop;
+  }
 
   // 添加鼠标移动监听
   mouseMoveTracker = (event) => {