2022-10-15 10:05:34 +08:00
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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<style>
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*{
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margin: 0;
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padding: 0;
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}
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#app{
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display: flex;
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flex-direction: column;
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align-items: center;
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}
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ul{
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width: 80%;
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height: 200px;
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border: 1px solid #000;
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margin: 20px 0;
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overflow-y: scroll;
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}
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li{
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font-size: 18px;
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width: 80px;
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line-height: 50px;
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background-color: red;
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display: inline-block;
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margin: 20px;
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border-radius: 10px;
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text-align: center;
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cursor:pointer;
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}
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button{
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width: 100px;
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height: 50px;
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}
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.btn{
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display: flex;
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}
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button{
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margin: 0 100px;
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}
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.active{
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background-color: blanchedalmond;
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color: #fff;
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}
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</style>
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</head>
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<body>
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<div id="app">
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<ul>
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<li v-for="num,value in list" @click="Clickme(value,$event)" :class="SetClasses(value)">{{num}}</li>
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</ul>
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<div class="btn">
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<button @click="LoadDatas()">载入数据</button>
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<button @click="ClearDates()">清空数据</button>
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</div>
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<div>
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<ul v-for="value in li_new_list" style="width:0;height:0">
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<li>{{value}}</li>
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</ul>
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</div>
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</div>
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</body>
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2022-11-19 11:19:25 +08:00
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<script src="../00-tools/JavaScript/vue.js"></script>
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2022-10-15 10:05:34 +08:00
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<script>
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const vue=new Vue({
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el:"#app",
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data:{
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list:[],
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li_new_list:[],
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thisIndex:-1,
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ChangeColor: { active: true }
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},
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methods: {
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LoadDatas(){
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for (let i=0;i<100;i++){
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let num=Math.ceil(Math.random()*100+10)
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this.list.push(num)
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}
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},
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ClearDates(){
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this.list=[]
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this.li_new_list = []
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},
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Clickme(index,event){
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this.thisIndex=index
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this.li_new_list.push(event.target.innerText + ",")
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},
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SetClasses(value){
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if(this.thisIndex==value){
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return this.ChangeColor
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}
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}
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},
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})
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</script>
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</html>
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