兼容

src/packages/index.js

 import Vue from 'vue'
 const requireComponent_ = require.context('./', true, /index.vue$/)
+const obj={}
 requireComponent_.keys().forEach(fileName => {
   const componentConfig = requireComponent_(fileName)
   const { name } = componentConfig.default
   if (name) {
     Vue.component(name, componentConfig.default || componentConfig)
+    obj[name]=componentConfig.default
   }
+
 })
-export default {
-}
+export default obj