对话效果：
QQ图片20180921145138.png
代码如下：
<div id='app'>
<chat-rom></chat-rom>
</div>
<script src="js/vue.js"></script>
<script>
Vue.component('chat-rom',{
template:`
<div>
<ul>
<li v-for='(value,index) in chatcont'>{{value}}</li>
</ul>
<user @send='rcvMsg' userName='jack'></user>
<user @send='rcvMsg' userName='rose'></user>
</div>
`,
data:function(){
return{
chatcont:[],
}
},
methods:{
rcvMsg:function(txt){
this.chatcont.push(txt)
}
}
})
Vue.component('user',{
props:['userName'],
template:`
<div>
<label>{{userName}}</label>
<input type='text' v-model='msg'>
<button @click='sendMsg'>发送</button>
</div>
`,
data:function(){
return{
msg:''
}
},
methods:{
sendMsg:function(){
this.$emit('send',this.userName+':'+this.msg)
}
}
})
new Vue({
el:'#app'
})
</script>
效果图：
QQ图片20180921145331.png
代码如下：
<div id='app'>
<child></child>
<son></son>
</div>
<script src="js/vue.js"></script>
<script>
var bus=new Vue()
Vue.component('child',{
template:`
<div>
<h1>这是组件1</h1>
<button @click='add'>点击按钮传值</button>
</div>
`,
data:function(){
return{
msg:'非父子组件传值'
}
},
methods:{
add:function(){
bus.$emit('send',this.msg)
}
}
})
Vue.component('son',{
template:`
<div>
<h1>这是组件2</h1>
<a href='#'>{{mess}}</a>
</div>
`,
data:function(){
return{
mess:''
}
},
mounted:function(){
bus.$on('send',msg=>{
this.mess=msg;
})
}
})
new Vue({
el:'#app'
})
</script>
