1.自定义组件添加原生事件
https://www.jianshu.com/p/132869f76c45
（https://www.jianshu.com/c/39ef3f076ec9）
2.父子组件间传值
https://www.jianshu.com/p/7e2ffa6430b8
3.非父子组件间通信
https://www.jianshu.com/p/3f179e6f657b
4.vue2.0 兄弟组件(平级)通讯
https://www.jianshu.com/p/bfd8c6878504
bus:https://www.cnblogs.com/fanlinqiang/p/7756566.html