Vue2.0实现简单分页及跳转效果

2020-11-27 来源：乌哈旅游

用Vue2.0实现一个数据的分页及页数的跳转，代码如下：

数据绑定：{{...}} <a v-on:click="btnClick(item)">{{item}}</a>

事件绑定：v-on <a v-on:click="cur--,pageClick()">上一页</a>

判断：v-if <li v-if="cur==1"><a class="banclick">上一页</a></li>

循环：v-for <li v-for="item in indexs" v-bind:class="{'active':cur==item}"></li>

修改样式：v-bind绑定class属性 <li v-for="item in indexs" v-bind:class="{'active':cur==item}"></li>

HTML代码如下：

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>分页</title>
<style>
 *{margin: 0;padding: 0;}
 #page-break{margin-top: 20px;margin-left: 20px;}
 #page-break li{list-style: none;}
 #page-break a{border: 1px solid #ddd; text-decoration: none;float: left;padding: 6px 12px;color: #337ab7;cursor: pointer}
 #page-break a:hover{background-color: #eee;}
 #page-break a .banclick{cursor: not-allowed;}
 #page-break .active a{color: #fff;cursor: default;background-color: #337ab7;border-color: #337ab7;}
 #page-break i{font-style: normal;color: #d44950;margin: 0px 4px;font-size: 12px;}
 #page-break .jumpbox .jumppage {border: 1px solid #ddd; margin-left: 40px; height: 33px; width: 40px; float: left;}
 #page-break .jumpbox .jumpbtn {cursor: pointer; margin-left: 10px;}
 #page-break .jumpbox .jumpbtn:active {color: #337ab7;}
</style> 
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div id="page-break">
 <ul>
 <li v-if="cur>1">
 <a v-on:click="cur--,pageClick()">上一页</a>
 </li>
 <li v-if="cur==1">
 <a class="banclick">上一页</a>
 </li>
 <li v-for="item in indexs" v-bind:class="{'active':cur==item}">
 <a v-on:click="btnClick(item), pageClick()">{{item}}</a>
 </li>
 <li v-if="cur!=all">
 <a v-on:click="cur++,pageClick()">下一页</a>
 </li>
 <li v-if="cur==all">
 <a class="banclick">下一页</a>
 </li>
 <li><a>共<i>{{all}}</i>页</a></li>
 <div class="jumpbox">
 <input type="number" class="jumppage" />
 <a class="jumpbtn" v-on:click="pageSkip()">跳转</a>
 </div>
 </ul>
</div>
</body>
</html>

js代码如下：

 new Vue({
 el: '#page-break',
 data: {
 cur: 1,
 all: 20
 },
 watch: {
 cur: function(newValue, oldValue){
 console.log(arguments);
 }
 },
 methods: {
 btnClick(num){
 if(num!=this.cur){
 this.cur=num;
 }
 },
 pageClick(){
 console.log('现在是'+this.cur+'页')
 },
 pageSkip(){
 var maxPage = this.all;
 var skipPage = Number(document.getElementsByClassName("jumppage")[0].value);
 console.log(typeof skipPage);
 if(!skipPage){
 alert("请输入跳转页码");
 return;
 }else if(skipPage<1 || skipPage>maxPage){
 alert("您输入的页码超过页数范围了！");
 return;
 }else{
 //this.cur=skipPage;
 this.btnClick(skipPage);
 this.pageClick();
 }
 }
 },
 computed: {
 indexs(){
 var left = 1;
 var right = this.all;
 var arr = [];
 if(this.all>=7){
 if(this.cur>4 && this.cur<this.all-3){
 left = this.cur-3;
 right = this.cur+3;
 }else if(this.cur<=4){
 left=1;
 right=7;
 }else{
 left=this.all-6;
 right=this.all;
 }
 }
 while(left<=right){
 arr.push(left);
 left++;
 }
 return arr;
 }
 }
})

分页显示如下：

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Vue2.0实现简单分页及跳转效果