<div class="page-bar" v-else> 
 <ul> 
  <li style="width: 11%" v-if="showFirst"> 
  <a v-on:click="cur--"> 
   <<</a> 
  </li> 
  <li v-for="index in indexs" v-bind:class="{ 'active': cur == index}"> 
  <a v-on:click="btnClick(index)">{{index}}</a> 
  </li> 
  <li style="width: 11%" v-if="showLast"><a v-on:click="cur++"> >></a></li> 
  <li style="width: 22%;margin-left: 7%"><a>共<i>{{all}}</i>頁</a></li> 
 </ul> 
 </div> 

.page-bar { 
 margin-top: 21px; 
 margin-left: 11%; 
 } 
 
 .page-bar ul, 
 .page-bar li { 
 margin: 0px; 
 padding: 0px; 
 } 
 
 .page-bar ul li { 
 list-style: none; 
 border: 1px solid #ddd; 
 text-decoration: none; 
 position: relative; 
 float: left; 
 text-align: center; 
 padding: 1px 0; 
 margin-left: -1px; 
 line-height: 1.42857143; 
 color: #337ab7; 
 cursor: pointer; 
 width: 8%; 
 } 
 
 .page-bar li:first-child>a { 
 margin-left: 0px 
 } 
 
 .page-bar .active a { 
 color: #fff; 
 cursor: default; 
 background-color: #337ab7; 
 border-color: #337ab7; 
 } 
 
 .page-bar i { 
 font-style: normal; 
 color: #d44950; 
 margin: 0px 4px; 
 font-size: 12px; 
 } 

var vm = new Vue({ 
 el: 'body', 
 data: { 
 list: null, 
 all: 1, //總頁數(shù) 
 cur: 1, //當前頁碼 
 }, 

 computed: { 
 indexs: function(index) { 
 var left = 1; 
 var right = this.all; 
 var ar = []; 
 if (this.all >= 11) { 
  if (this.cur > 5 && this.cur < this.all - 4) { 
  left = this.cur - 5; 
  right = this.cur + 4; 
  } else { 
  if (this.cur <= 5) { 
  left = 1; 
  right = 10; 
  } else { 
  right = this.all; 
  left = this.all - 9; 
  } 
  } 
 } 
 while (left <= right) { 
  ar.push(left); 
  left++; 
 } 
 return ar; 
 }, 
 showLast: function() { 
 if (this.cur == this.all) { 
  return false 
 } 
 return true 
 }, 
 showFirst: function() { 
 if (this.cur == 1) { 
  return false 
 } 
 return true 
 } 
 } 

methods: { 
 btnClick: function(items) { //頁碼點擊事件 
 if (items != this.cur) { 
  this.cur = items 
 } 
 } 
}, 

 watch: { 
 cur: function(oldValue, newValue) { 
 console.log(arguments) 
 
 } 
 }