修改

src/pages/personal/ElectronicSignature.vue

   created() {
     this.getToken();
     this.GetElectronicSignature();
-    document.body.addEventListener(
-      "touchmove",
-      function(e) {
-        e.preventDefault();
-      },
-      { passive: false }
-    );
+    // document.body.addEventListener(
+    //   "touchmove",
+    //   function(e) {
+    //     e.preventDefault();
+    //   },
+    //   { passive: false }
+    // );
   },
   mounted() {
     const canvas = document.querySelector("#canvas");
       this.middleAry.push(preData);
     },
     canvasMove(e) {
+      e.preventDefault();
       if (this.canvasMoveUse) {
         const t = e.target;
         let canvasX;