ytj

.babelrc

     }],
     "stage-2"
   ],
-  "plugins": ["transform-vue-jsx", "transform-runtime"],
+  "plugins": ["transform-vue-jsx", "transform-runtime",["import", {
+    "libraryName": "vant",
+    "libraryDirectory": "es",
+    "style": true
+  }]],
   "env": {
     "test": {
       "presets": ["env", "stage-2"],

package.json

     "build": "node build/build.js"
   },
   "dependencies": {
+    "vant": "^1.1.14",
     "vue": "^2.5.2",
     "vue-router": "^3.0.1"
   },
     "babel-jest": "^21.0.2",
     "babel-loader": "^7.1.1",
     "babel-plugin-dynamic-import-node": "^1.2.0",
+    "babel-plugin-import": "^1.8.0",
     "babel-plugin-syntax-jsx": "^6.18.0",
     "babel-plugin-transform-es2015-modules-commonjs": "^6.26.0",
     "babel-plugin-transform-runtime": "^6.22.0",