添加依赖增加兼容引用

package.json

@@ -3,6 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
+    "@babel/polyfill": "^7.0.0",
     "antd-mobile": "^2.2.5",
     "axios": "^0.18.0",
     "cssnano": "^4.0.5",

src/index.js

-import 'core-js/es6/map';
-import 'core-js/es6/set';
+import "@babel/polyfill";
 
 import React from 'react';
 import ReactDOM from 'react-dom';