修改

src/components/m-img-code/index.tsx

@@ -104,7 +104,7 @@ export default defineComponent({
         this.code = '';
         setTimeout(() => {
           this.updateIdentifyingCode();
-        }, 500);
+        }, 2000);
       }
     }
   },

src/styles/index.less

@@ -267,7 +267,7 @@ body {
 }
 
 .van-toast {
-  z-index: 9999 !important;
+  z-index: 99999 !important;
 }
 
 .fontBlod {