重新配置兼容文件

.browserslistrc

@@ -1,3 +1,3 @@
 > 1%
 last 2 versions
-not dead
+not ie <= 8

babel.config.js

@@ -1,5 +1,12 @@
 module.exports = {
-  presets: [
-    '@vue/cli-plugin-babel/preset'
+  "presets": [
+    [
+      "env",
+      {
+        "modules": false,
+        "useBuiltIns": "entry"
+      }
+    ],
+    "stage-3"
   ]
-}
+};

package.json

@@ -19,7 +19,8 @@
     "vue-quill-editor": "^3.0.6",
     "vue-router": "^3.2.0",
     "vuejs-datepicker": "^1.6.2",
-    "wangeditor": "^4.7.1"
+    "wangeditor": "^4.7.1",
+    "webpack-dev-server": "^3.11.2"
   },
   "devDependencies": {
     "@vue/cli-plugin-babel": "~4.5.0",