Vue js引用警告 “export ‘default‘ (imported as ‘xxx‘) was not found

问题原因：ES6 编译器识别问题

如果在public.js这样写会有警告export 'default' (imported as 'xxx') was not found

export const myMixin= {}

解决办法：修改组件中引用js的地方

将 import Public from './public'
改成 import * as Public from './public'