用Vue2.0实现简单的分页及跳转
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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：
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>分页</title>
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<style>
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*{margin: 0;padding: 0;}
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#page-break{margin-top: 20px;margin-left: 20px;}
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#page-break li{list-style: none;}
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#page-break a{border: 1px solid #ddd; text-decoration: none;float: left;padding: 6px 12px;color: #337ab7;cursor: pointer}
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#page-break a:hover{background-color: #eee;}
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#page-break a .banclick{cursor: not-allowed;}
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#page-break .active a{color: #fff;cursor: default;background-color: #337ab7;border-color: #337ab7;}
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#page-break i{font-style: normal;color: #d44950;margin: 0px 4px;font-size: 12px;}
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#page-break .jumpbox .jumppage {border: 1px solid #ddd; margin-left: 40px; height: 33px; 40px; float: left;}
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#page-break .jumpbox .jumpbtn {cursor: pointer; margin-left: 10px;}
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#page-break .jumpbox .jumpbtn:active {color: #337ab7;}
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</style>
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<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
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</head>
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<body>
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<div id="page-break">
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<ul>
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<li v-if="cur>1">
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<a v-on:click="cur--,pageClick()">上一页</a>
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</li>
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<li v-if="cur==1">
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<a class="banclick">上一页</a>
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</li>
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<li v-for="item in indexs" v-bind:class="{'active':cur==item}">
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<a v-on:click="btnClick(item), pageClick()">{{item}}</a>
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</li>
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<li v-if="cur!=all">
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<a v-on:click="cur++,pageClick()">下一页</a>
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</li>
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<li v-if="cur==all">
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<a class="banclick">下一页</a>
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</li>
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<li><a>共<i>{{all}}</i>页</a></li>
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<div class="jumpbox">
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<input type="number" class="jumppage" />
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<a class="jumpbtn" v-on:click="pageSkip()">跳转</a>
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</div>
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</ul>
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</div>
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</body>
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</html>
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js代码如下：
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new Vue({
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el: '#page-break',
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data: {
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cur: 1,
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all: 20
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},
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watch: {
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cur: function(newValue, oldValue){
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console.log(arguments);
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}
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},
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methods: {
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btnClick(num){
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if(num!=this.cur){
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this.cur=num;
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}
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},
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pageClick(){
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console.log('现在是'+this.cur+'页')
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},
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pageSkip(){
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var maxPage = this.all;
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var skipPage = Number(document.getElementsByClassName("jumppage")[0].value);
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console.log(typeof skipPage);
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if(!skipPage){
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alert("请输入跳转页码");
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return;
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}else if(skipPage<1 || skipPage>maxPage){
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alert("您输入的页码超过页数范围了！");
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return;
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}else{
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//this.cur=skipPage;
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this.btnClick(skipPage);
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this.pageClick();
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}
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}
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},
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computed: {
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indexs(){
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var left = 1;
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var right = this.all;
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var arr = [];
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if(this.all>=7){
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if(this.cur>4 && this.cur<this.all-3){
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left = this.cur-3;
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right = this.cur+3;
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}else if(this.cur<=4){
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left=1;
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right=7;
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}else{
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left=this.all-6;
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right=this.all;
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}
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}
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while(left<=right){
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arr.push(left);
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left++;
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}
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return arr;
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}
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}
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})
分页显示如下：
