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01-记事本案例.html
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<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
body{
background-color: #F4F4F4;
}
#app{
width: 400px;
background-color: #FFFFFF;
margin: 100px auto;
box-shadow: 0px 4px 20px #cfcfcf;
border-radius: 7px;
}
#app input{
padding:8px 15px;
color: #999999;
font-size: 15px;
border-style: none;
border-bottom: 0.5px solid #d6d5d5;
box-sizing: border-box;
height: 50px;
width: 100%;
outline: none;
}
input::-webkit-input-placeholder{
color: #e6e6e6;
}
li{
color: #999999;
border-bottom: 0.5px solid #e4e4e4;
font-size: 15px;
padding: 14px 12px;
list-style-type: none;
/* word-wrap: break-word; */
word-break: break-all;
/* flex布局 */
display: flex;
/* justify-content: row; */
justify-content: space-between;
/* position: relative; */
}
li span{
color: #b1b1b1;
font-size: 10px;
padding: 0 8px;
}
li span:nth-child(2){
flex-basis: 310px;
}
.delete{
/* position: absolute; */
top: 50%;
right: 20px;
/* transform: translateY(-50%); */
padding: 0 5px;
font-size: 12px;
cursor: pointer;
/* 隐藏效果 */
opacity: 0;
}
li:hover .delete{
opacity: 1;
}
.foot{
color: #b1b1b1;
padding:8px 12px;
box-sizing: border-box;
font-size: 12px;
display: inline-block;
border: 2 solid #333;
width: 100%;
clear: both;
}
</style>
</head>
<body>
<div id="app">
<input type="text" @keyup.enter="log" v-model="message" placeholder="输入一条便签">
<!-- <div class="content"> -->
<li v-for="(item,index) in list">
<span>{{index+1}}.</span>
<span id="essay">{{item}}</span>
<span class="delete" @click="remove(index)">×</span>
</li>
<!-- 1.对齐问题 -->
<!-- </div> -->
<div class="foot" >
<span style="float: left;" v-show="list.length!=0">{{list.length}} item</span>
<div class="clear" @click="clear" style="float: right;" v-if="list.length!=0">清空</div>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script>
var app = new Vue({
el:"#app",
data:{
message:'',
list:[
"×怎么和文字中线对齐",
// 3，布局问题！！！！！！！
"解决字数太多的时候 或者多行内容aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
]
},
methods:{
log:function(){
if(this.message != ''){
this.list.push(this.message);
this.message='';
}
},
clear:function(){
this.list=[];
// 2.为什么=''时 清空后不能再添加 =[]却可以
},
remove:function(index){
// splice删除某个
this.list.splice(index,1);
}
}
})
</script>
</body>
</html>