效果预览图
完整代码
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>作业</title>
<style>
body{
background: #ecdada;
}
*{
margin: 0;
padding: 0;
}
#app{
width: 1000px;
height: 100%;
margin: 10px auto;
}
h2{
text-align: center;
margin-top: 10px;
}
.wp{
width: 960px;
height: 250px;
background: pink;
overflow: hidden;
border-radius: 10px;
padding: 20px;
}
textarea{
display: block;
margin: 5px auto;
border-radius: 10px;
padding: 10px;
resize: none;
}
.wp button{
display: block;
width: 60px;
height: 40px;
background: #99ead6;
margin-left: auto;
border: none;
border-radius: 5px;
cursor: pointer;
}
input{
width: 200px;
height: 30px;
margin-left: 5px;
padding-left: 10px;
border-radius: 5px;
}
.pl{
width: 1000px;
height: 180px;
background: #fff;
overflow: hidden;
border-radius: 10px;
margin-top: 20px;
}
span{
width: 980px;
height: 40px;
display: block;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
margin-left: 10px;
}
p{
margin: 0 0 10px 10px;
}
h3{
margin: 10px;
}
button{
display: inline-block;
width: 60px;
height: 40px;
background: #99ead6;
border: none;
border-radius: 5px;
margin-top: 10px;
margin-left: 20px;
cursor: pointer;
}
</style>
</head>
<body>
<div id="app">
<h2>留言板</h2>
<div class="wp">
<input type="text" placeholder="给自己定义一个身份吧(默认匿名)" v-model="val">
<textarea class="area" rows="10" cols="130" placeholder="有什么新鲜事想告诉大家" v-model="val2"></textarea>
<button v-if="fl==1" @click="add">发布</button>
<button v-else-if="fl==2" @click="add2(jk)">提交修改</button>
</div>
<div class="pl" v-for="(item,index) in arr">
<h3>{{arr[index].name}}</h3>
<p>{{arr[index].times}}</p>
<span>{{arr[index].cont}}</span>
<button @click="sc(index)">删除</button>
<button @click="xg(index)">修改</button>
</div>
</div>
</body>
</html>
<script type="module">
import { createApp } from './js/vue.esm-browser.js';
createApp({
data() {
return {
arr:[
{name:'小姚学前端',times:'时间',cont:'学习111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111，好好学习，天天向上'},
],
val:'',
val2:'',
fl:1,
jk:-1,
}
},
methods:{
add(){
let nn = new Date().toLocaleString()
if (this.val2=='') {
alert('内容不能为空')
}else if (this.val2!='') {
let obj={
name:this.val==''? '来自匿名':this.val,
times:nn,
cont:this.val2
}
this.arr.unshift(obj)
this.val2=''
this.val=''
this.fl=1
}
},
add2(jk){
let nn = new Date().toLocaleString()
if (this.val2=='') {
alert('内容不能为空')
}else if (this.val2!='') {
let obj={
name:this.val==''? '来自匿名':this.val,
times:nn+'修改',
cont:this.val2
}
this.arr[jk]=obj
this.val2=''
this.val=''
this.fl=1
}
},
sc(index){
let userResponse = window.confirm("确定要删除留言吗");
if (userResponse) {
this.arr.splice(index,1)
} else {
}
},
xg(index){
this.val2=this.arr[index].cont;
this.val=this.arr[index].name
this.fl=2
this.jk=index
}
}
}).mount('#app')
</script>