学习链接：Vue.js——60分钟快速入门点击查看
分分钟玩转Vue.js组件点击查看
父组件传子组件
父传子方法（一） 属性传递 props
//子组件 <template> <ul> <li v-for="item in dataList">{{item}}</li> </ul> </template> <script> export default { props : { dataList : [] } } </script>
//父组件 <template> <component-child v-bind:data-list="dataList"> </component-child> <input v-model="dataInput" v-on:keyup.13="addDataItem()" ></input> </template> <script> import ComponentChild from './child.vue' export default { data () { return { dataInput: "", dataList : [ 'hello world!','welcome to use vue.js' ] } }, components : { ComponentChild }, methods : { addDataItem () { let self = this if( !(self.dataInput && self.dataInput.length > 0) ) { return } self.dataList.push( self.dataInput ) self.dataInput = "" } } } </script>
父传子方法（二） 广播事件传递 vm.$broadcast
//子组件 <template> <ul> <li v-for="item in dataList">{{item}}</li> </ul> </template> <script> export default { data () { return { dataList : [ 'hello world!', 'welcome to use vue.js' ] } }, events : { addChildDataEvent : function ( dataInput ) { this.dataList.push( dataInput ) } } } </script>
//父组件 <template> <component-child></component-child> <input v-model="dataInput" v-on:keyup.13="addDataItem()" ></input> </template> <script> import ComponentChild from './child.vue' export default { data () { return { dataInput: "" } }, components : { ComponentChild }, methods : { addDataItem () { let self = this if( !(self.dataInput && self.dataInput.length > 0) ) { return } //广播到子组件 self.$broadcast( 'addChildDataEvent', self.dataInput ) self.dataInput = "" } } } </script>
子组件传父组件
子传父方法 派遣事件传递 vm.$dispatch
//子组件 <template> <input v-model="dataInput" v-on:keyup.13="addDataItem()" ></input> </template> <script> export default { data () { return { dataInput: "" } }, methods : { addDataItem () { let self = this if( !(self.dataInput && self.dataInput.length > 0) ) { return } //派遣事件到父组件 self.$dispatch( 'addFatherDataEvent', self.dataInput ) self.dataInput = "" } } } </script>
//父组件 <template> <ul> <li v-for="item in dataList">{{item}}</li> </ul> <component-child></component-child> </template> <script> import ComponentChild from './child.vue' export default { data () { return { dataList : [ 'hello world!', 'welcome to use vue.js' ] } }, components : { ComponentChild }, events : { addFatherDataEvent : function ( dataInput ) { this.dataList.push( dataInput ) } } } </script>
兄弟组件互传
父组件代理传递 子(vm.dispatch ）父 ( vm.broadcast )子 事件方法传递
<template> <ul> <li v-for="item in dataList">{{item}}</li> </ul> </template> <script> export default { data () { return { dataList : [ 'hello world!', 'welcome to use vue.js' ] } }, events : { addChildDataEvent : function ( dataInput ) { this.dataList.push( dataInput ) } } } </script>
<template> <input v-model="dataInput" v-on:keyup.13="addDataItem()" ></input> </template> <script> export default { data () { return { dataInput: "" } }, methods : { addDataItem () { let self = this if( !(self.dataInput && self.dataInput.length > 0) ) { return } //派遣事件到父组件 self.$dispatch( 'agentDataEvent', self.dataInput ) self.dataInput = "" } } } </script>
<template> <component-child1></component-child1> <component-child2></component-child2> </template> <script> import ComponentChild1 from './child1.vue' import ComponentChild2 from './child2.vue' export default { components : { ComponentChild1, ComponentChild2 }, events : { agentDataEvent : function( dataInput ) { this.$broadcast('addChildDataEvent', dataInput) } } } </script>
实例间通信
把实例当做参数传入另一个实例
<template> <div> <p>实例间通信</p> <ul> <li v-for="item in dataList">{{item}}</li> </ul> </div> </template> <script> export default { data () { return { dataList : [ 'hello world!', 'welcome to use vue.js' ] } }, events : { addDataEvent : function ( dataInput ) { this.dataList.push( dataInput ) } } } </script>