实时评论
image.png
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<script src="js/vue.js" type="text/javascript" charset="utf-8"></script>
<link rel="stylesheet" href="bootstrap.css">
</head>
<body>
<div id="app">
<cmt-box @func = "loadComments"></cmt-box>
<ul class="list-group">
<li class="list-group-item" v-for="item in list" :key="item.id">
<span class="badge">评论人：{{item.name}}</span>
{{item.content}}
</li>
</ul>
</div>
<template id="tmp1">
<div>
<div class="form-group">
<label>评论人：</label>
<input type="text" class="form-control" v-model="name">
</div>
<div class="form-group">
<label>评论内容</label>
<textarea class="form-control" v-model="content"> </textarea>
</div>
<div class="form-group">
<input type="button" value="发表评论" class="btn brn-primary" @click="postComment">
</div>
</div>
</template>
<script type="text/javascript">
var commentBox = {
data(){
return {
name:'',
content:'',
}
},
template:'#tmp1',
methods:{
postComment(){
var comment = {id:Date.now(),name:this.name,content:this.content}
//从localStorage中获取所有的评论
var list = JSON.parse(localStorage.getItem('cmts')||'[]')
list.unshift(comment)
//重新保存最新的 评论数据
localStorage.setItem('cmts',JSON.stringify(list))
this.user = this.comment = ''
this.$emit('func')
}
}
}
var vm = new Vue({
el:'#app',
data:{
name:'',
content:'',
list:[
{id:Date.now(),name:'xiehao',content:'天生我才必有用'}
]
},
created(){
this.loadComments()
},
methods:{
loadComments(){
var list = JSON.parse(localStorage.getItem('cmts')||'[]')
this.list = list
}
},
components:{
'cmt-box':commentBox
}
})
</script>
</body>
</html>
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