vue给组件绑定自定义事件无效怎么解决？

Answer 1

https://cn.vuejs.org/v2/guide/components-custom-events.html#%E5%B0%86%E5%8E%9F%E7%94%9F%E4%BA%8B%E4%BB%B6%E7%BB%91%E5%AE%9A%E5%88%B0%E7%BB%84%E4%BB%B6