替换var 为const/let

删除未使用import
替换 == 为 ===

yudao-ui-admin/src/views/system/user/index.vue

@@ -343,7 +343,7 @@ export default {
         ],
         mobile: [
           {
-            pattern: /^(?:(?:\+|00)86)?1(?:(?:3[\d])|(?:4[5-79])|(?:5[0-35-9])|(?:6[5-7])|(?:7[0-8])|(?:8[\d])|(?:9[189]))\d{8}$/,
+            pattern: /^(?:(?:\+|00)86)?1(?:3[\d]|4[5-79]|5[0-35-9]|6[5-7]|7[0-8]|8[\d]|9[189])\d{8}$/,
             message: "请输入正确的手机号码",
             trigger: "blur"
           }