vue父组件通过props如何向子组件传递方法详解

App.vue 

<search-bar class="f-fr" placeholder="请输入名字" mutationName='resetListData' :callback="callback"/>

SearchBar.vue

export default {
 name: 'SearchBar',
 data() {
  return {
   input: ''
  }
 },
 methods: {
  setName: function () {
   var input = this.input;
   if (input.trim() == '') {
    alert("empty");
   }
   else {
    Api.searchTest(this.input,this.success );
   }

  },
  success(responseData) {
   this.callback(responseData);
  },
 },
 props: ['placeholder', 'apiName', 'moduleName', 'mutationName','callback']
}

export default {
 ...
 data:function() {
 return {
  callback:function(responseData) {
  this.$store.commit('resetListData', responseData);
  }
 }
 },
 ...
};

export default {
 ...
 methods: {
 callback(responseData) {
  this.$store.commit('resetListData', responseData);
 }
 }
};