vue 分页组件及props传参

傷城~ 2022-06-11 03:52 307阅读 0赞

先来看两张效果图：  
![这里写图片描述][SouthEast]  
![这里写图片描述][SouthEast 1]  
接下来看看实现代码：  
1.组件代码：由于是一个组件所以就简单粗暴的全部写在一个页面了  
Pagination.vue

<template>
      <div class="pager">
        <select class="select-page" @change="selectPage()">
                      <option value="10">每页10条</option>
                      <option value="15">每页15条</option>
                      <option value="20">每页20条</option>
        </select>
        <div class="page-right">
          <button class="btn btn-pager" :disabled="currentNow == 1" @click="prePage">
          <span aria-hidden="true"><i class="fa fa-angle-left"></i></span>
        </button>
        <span v-if="pageAll !== 1" class="page-index" v-bind:class="{'active':1 == currentNow}" @click="goPage(1)">1</span>
        <span v-if="preClipped" class="page-index">...</span>
        <span v-for="index in pages" class="page-index" v-bind:class="{'active':index == currentNow}" @click="goPage(index)">{
       {index}}</span>
        <span v-if="backClipped" class="page-index">...</span>
        <span class="page-index" v-bind:class="{'active':pageAll == currentNow}" @click="goPage(pageAll)">{
       {pageAll}}</span>
        <button class="btn btn-pager" :disabled="currentNow == pageAll" @click="nextPage">
          <span aria-hidden="true"><i class="fa fa-angle-right"></i></span>
        </button>
        </div>
      </div>
    </template>
    <script type="es6">
    export default {
      name:'page',
      props: {
        // 用于记录总页码，可由父组件传过来
        pageNo: {
          type: Number,
          default: 1
        },
        // 用于记录当前页数，这个与父组件进行数据交互来完成每一页的数据更新，所以我们只要改变current的值来控制整个页面的数据即可
        current: {
          type: Number,
          default: 1
        }
      },
      data: function () {
        return {
          // 用于判断省略号是否显示
          backClipped: true, 
          preClipped: false,
          //通过这种方法处理从父组件传来的参数
          currentNow:this.current,
          pageAll:this.pageNo/10,
          pageAll1:this.pageNo
        }
      },
      methods: {
        selectPage(){
          this.pageAll = parseInt(this.pageAll1/$('.select-page').val());
          if(this.currentNow > this.pageAll){
            this.currentNow = this.pageAll
          }
        },
        prePage () {
          // 上一页
          this.currentNow--
          
        },
        nextPage () {
          // 下一页
          this.currentNow++
        },
        goPage (index) {
          // 跳转到相应页面
          if (index !== this.currentNow) {
            this.currentNow = index
          }
        }
      },
      computed: {
        // 使用计算属性来得到每次应该显示的页码
        pages: function () {
          let ret = []
          if (this.currentNow > 3) {
            // 当前页码大于三时，显示当前页码的前2个
            ret.push(this.currentNow - 2)
            ret.push(this.currentNow - 1)
            if (this.currentNow > 4) {
              // 当前页与第一页差距4以上时显示省略号
              this.preClipped = true
            }
          } else {
            this.preClipped = false
            for (let i = 2; i < this.currentNow; i++) {
              ret.push(i)
            }
          }
          if (this.currentNow !== this.pageAll && this.currentNow !== 1) {
            ret.push(this.currentNow)
          }
          if (this.currentNow < (this.pageAll - 2)) {
            // 显示当前页码的后2个
            ret.push(this.currentNow + 1)
            ret.push(this.currentNow + 2)
            if (this.currentNow <= (this.pageAll - 3)) {
              //当前页与最后一页差距3以上时显示省略号
              this.backClipped = true
            }
          } else {
            this.backClipped = false
            for (let i = (this.currentNow + 1); i < this.pageAll; i++) {
              ret.push(i)
            }
          }
          // 返回整个页码组
          return ret
        }
      }
    }
    </script>
    // 组件样式
    <style scoped>
    .pager {
      text-align: center;
    }
    .select-page{
      float: left;
      padding: 0px;
      margin-left: 31px;
      width: 80px;
      height: 24px;
      text-align: center;
      border:1px solid #CCCCCC;
      color: #999999;
      cursor:pointer;
    }
    .page-right{
      float: right;
      margin-right: 24px
    }
    .btn-pager {
      margin-left: 10px;
      padding: 0px;
      width: 24px;
      height: 24px;
      text-align: center;
      background-color: #ffffff;
      color: #CCCCCC;
      border: 1px solid #e3e3e3;
      border-radius: 0px;
      cursor:pointer;
    }
    .btn-pager:hover {
      background-color: #f2f2f2;
    }
    .page-index {
      display: inline-block;
      margin-left: 4px;
      width: 24px;
      height: 24px;
      line-height: 24px;
      background-color: #ffffff;
      cursor: pointer;
      color: #000000;
    }
    .active {
      color: #ffffff;
      background-color: #FFA600;
    }
    </style>

2.看配合父组件如何使用：

3.不要忘了引入和加载一些必要的文件及配置一下组件  
components: \{  
page  
\}  
import ‘./assets/css/font-awesome-4.7.0/css/font-awesome.min.css’  
import $ from ‘jquery’  
import page from ‘…/…/components/page/page’;

希望可以帮到用vue2.0的各位小白！！！

[SouthEast]: /images/20220611/350aad1a246a4647a546791685ea1046.png
[SouthEast 1]: /images/20220611/4533413bbef14534a511d851130d266b.png