1回答

• 

  好吧真的不知道取什么名字

  2019-03-21 08:55:11

  

  你这个<list-item

             @delete="amputate"   这个@delete是子组件内传出的函数  methods: {

                                                                                                              子组件绑定删除事件
  

                                                                                                              handerDetlete() {

                                                                                                                  this.$emit("delete", this.index);

                                                                                                                  其中“detele”是子组件传递给父组件的事件也就是绑定在 <list-item @delete="amputale" :index="index">中的 @delete监听事件

                                                                                                                  this.index是子组件传递给父组件的参数 
  

                                                                                                              }
  

                                                                                                          }
  

              >
  

  
  

  父组件绑定（调用子组件删除）

  methods: {

       amputale(index) {

          // index 是从 this.$emit("delete", this.index); 中 this.index传出的值
  

          this.list.splice(index, 1);
  

     }

  }

  6 0

  yuyan 回复盛夏黄昏

  你子组件删除方法是amputate，传给父组件的却是@delete， 肯定未定义啊！ 应该传给父组件的是@amputate = "父组件中定义的删除函数名" 。明白了没？

  2019-05-06 10:47:04

  共 6 条回复 >