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Vue实现web分页组件

2021-03-19 43084 编程艺术家
Vue实现web分页组件

站点名称:Vue实现web分页组件

所属分类:IT程序员

相关标签: # vue

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站点介绍

<!DOCTYPE html><html lang="en"><head>
    <meta charset="UTF-8">
    <title>测试分页 - www.maoyupeng.com</title>
    <style type="text/css">
        body{padding:0; margin: 0; broder:none; } #app {width: 500px; height: 200px; margin: 0 auto; text-align: center; background-color: #cccccc; } #mylink {color: #efefef; } .pagination{list-style: none; text-align: center; height: 50px; padding-top: 50px; } .pagination > li {float: left; margin: 0 5px; } [v-cloak] {display: none; } </style></head><body>
    <div id="app" v-cloak>
        <ul class="pagination">
            <li>
                <a v-if="currentPage == 1" >首页</a>
                <a v-else href="javascript:;" @click="next(1)">首页</a>
            </li>
            <li v-if="currentPage<=1"><a>上一页</a></li>
            <li v-else><a href="javascript:;" @click="next(currentPage-1)">上一页</a></li>


            <li v-for="item in pagingList">
                <a v-if="currentPage==item.key || sign ==item.key" >{{item.key}}</a>
                <a v-else href="javascript:;" @click="next(item.value)">{{item.key}}</a>
            </li>

            <li v-if="currentPage>=totalPageCount"><a>下一页</a></li>
            <li v-else><a href="javascript:;" @click="next(currentPage+1)">下一页</a></li>
            <li>
                <a v-if="totalPageCount == currentPage">尾页</a>
                <a v-else href="javascript:;" @click="next(totalPageCount)">尾页</a>
            </li>
        </ul>
        <p>共:{{totalPageCount||0}}页,当前页为第{{currentPage||0}}页&nbsp;&nbsp;&nbsp;设置总页数:<input style="width:20px;" v-model="totalPageCount"></p>
        <a href="http://www.maoyupeng.com/web-pagination-component-for-vue.html" target="_blank" id="mylink">http://www.maoyupeng.com 带注解版本</a>
    </div>
    
    <script src="https://unpkg.com/vue/dist/vue.js"></script>
    <script type="text/javascript">
        var app = new Vue({          el: '#app',          data: {              // 省略的符号
              sign:'...',              // 省略号位置
              signIndex:4,              // 总页数
              totalPageCount: 4,              // 当前页
              currentPage:1,              // 显示在页面的数组列表
              pagingList:[]
          },          watch: {
              totalPageCount (val) {                  var that = this
                  if (!val || val == '') return;
                  that.currentPage = 1;
                  that.init()
              },
              currentPage (val) {                  var that = this
                  that.init()
              }
          },          methods: {              // 跳转到某页码
              next (num) {                  var that = this
                  if (num <= 1) that.currentPage = 1;                  else if (num >= that.totalPageCount) that.currentPage = that.totalPageCount;                  else that.currentPage = num;
              },              // 初始化数据
              fetchData () {                  var that = this

                  that.pagingList = [];                  var tmp = null;                  
                  if ((that.totalPageCount) > 6) {                      if (((that.totalPageCount-1) == (that.totalPageCount - that.currentPage)) && (that.totalPageCount - that.currentPage) > 5) {                          for (var i=1;i<7;i++) {                              if (i < that.signIndex) {
                                  tmp = {key:i, value:i }
                              } else if (i== that.signIndex) {
                                  tmp = {key:that.sign, value:0 }
                              } else if (i == (that.signIndex + 1) ) {
                                  tmp = {key:that.totalPageCount - 1, value:that.totalPageCount - 1 }
                              } else {
                                  tmp = {key:that.totalPageCount, value:that.totalPageCount }
                              }
                              that.pagingList.push(tmp)
                          }
                      } else if (((that.totalPageCount - that.currentPage) <= that.signIndex)){                          var starNum = that.totalPageCount - 5;                          for (var i=starNum;i<starNum+6;i++) {
                              tmp = {key:i, value:i }
                              that.pagingList.push(tmp)
                          }
                      } else {                          var starNum = that.currentPage - 1;                          for (var i=1;i<7;i++) {                              if (i < that.signIndex) {
                                  tmp = {key:(starNum - 1) + i, value:(starNum - 1) + i }
                              } else if (i== that.signIndex) {
                                  tmp = {key:that.sign, value:0 }
                              } else if (i == (that.signIndex + 1) ) {
                                  tmp = {key:that.totalPageCount - 1, value:that.totalPageCount - 1 }
                              } else {
                                  tmp = {key:that.totalPageCount, value:that.totalPageCount }
                              }
                              that.pagingList.push(tmp)
                          }
                      }
                  } else {                      for (var i =0; i <that.totalPageCount; i++) {
                          tmp = {key:i+1, value:i+1 }
                          that.pagingList.push(tmp)
                      }
                  }
              },
              init () {                  var that = this

                  that.fetchData()
              }
          },
          mounted () {              var that = this

              that.init()
          }
        })    
    </script></body></html>

转载于:https://segmentfault.com/a/1190000008287869

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