vue实现一个分页效果

先贴上效果图:

 显示的是当前页的前四个以及后四个,第一个和最后一个

pagination.vue:

<template>
    <div class='pagination'>
        <a href="javascript:;" :class="{disabled: pageNow==1}" @click='changeIndex--'><</a>
        <ul>
            <li :class="{active: pageNow==item}" v-for='(item, index) in getpages()' :key='index'>
                <a href="javascript:;" v-if='item!="..."' @click='changeIndex=item'>{{item}}</a>
                <span v-else >{{item}}</span>
            </li>
        </ul>
        <a href="javascript:;" :class="{disabled: pageNow==totalPage}" @click='changeIndex++'>></a>
    </div>
</template>
<script>
export default {
    data () {
        return {
            pageNow: this.cur || this.value || 1, // 当前页
        }
    },
    props: {
        'cur': {
            type:Number
        },
        'totalPage': {
            type:Number,
            required: true
        },
        "value": {
            type: Number
        }
    },
    methods: {
        getpages () {
            var arr = []
            for(var i = Math.max(this.pageNow-4,1); i <= Math.min(this.totalPage, this.pageNow+4); i++) {
                arr.push(i)
            }
            if(arr[0] > 2) {
                arr.unshift('...')
            }
            if(arr[0]!=1) {
                arr.unshift(1)
            }
            if(arr[arr.length - 1] < this.totalPage-1) {
                arr.push('...')
            }
            if(arr[arr.length - 1]!=this.totalPage) {
                arr.push(this.totalPage)
            }
            return arr
        }
    },
    computed: {
        changeIndex: {
            get () {
                return this.pageNow
            },
            set (v) {
                if(v>=1 && v<=this.totalPage) {
                    this.pageNow = v
                    this.$emit('changepage', v)
                    this.$emit('input', v)
                    this.$emit('cur:update', v)
                }
            }
        }
    }
}
</script>
<style lang="css">
    .pagination{margin:10px 0;}
    .pagination a{display: inline-block;line-height:30px;vertical-align: middle;font-size:16px;color:#333;}
    .pagination a.disabled{color:#c0c4cc;}
    .pagination ul{display:inline-block;vertical-align:middle;}
    .pagination li{float:left;30px;height:30px;text-align:center;line-height:30px;margin:0 5px;}
    .pagination li a{display: block;}
    .pagination li.active a,.pagination li:hover a{color:blue;}
</style>

　选择以下三种调用方式中的任意一种:

<pagination :cur='1' :totalPage='100' @changepage='changeIndex'/>  
<pagination  :totalPage='100' v-model='cur'/>
<pagination  :totalPage='100' :cur.sync = 'cur'/>