vue批量注册全局组件

import Vue from 'vue';

const requireComponent = require.context(
  '.',true,/\.vue$/
  //找到components文件夹下以.vue命名的文件
)
requireComponent.keys().forEach(fileName => {
  const componetConfig = requireComponent(fileName);
  let a = fileName.lastIndexOf('/');
  const componetName = componetConfig.default.name
  Vue.component(componetName,componetConfig.default || componetConfig)
})