修改文件

babel.config.js

@@ -19,5 +19,15 @@ if (IS_PROD) {
 
 module.exports = {
   presets: ['@vue/cli-plugin-babel/preset'],
-  plugins
+  plugins: [
+    [
+      'import',
+      {
+        libraryName: 'vant',
+        libraryDirectory: 'es',
+        style: true
+      },
+      'vant'
+    ]
+  ]
 };