成功引入vant

package.json

@@ -8,9 +8,12 @@
     "lint": "vue-cli-service lint"
   },
   "dependencies": {
+    "babel-plugin-import": "^1.12.2",
     "core-js": "^3.3.2",
     "node-sass": "^4.13.0",
+    "postcss-pxtorem": "^4.0.1",
     "sass-loader": "^8.0.0",
+    "vant": "^2.2.14",
     "vue": "^2.6.10",
     "vue-router": "^3.1.3"
   },
@@ -39,7 +42,18 @@
   },
   "postcss": {
     "plugins": {
-      "autoprefixer": {}
+      "autoprefixer": {
+        "browsers": [
+          "Android >= 4.0",
+          "iOS >= 7"
+        ]
+      },
+      "postcss-pxtorem": {
+        "rootValue": 100,
+        "propList": [
+          "*"
+        ]
+      }
     }
   },
   "browserslist": [