JS实现前端动态分页码代码实例

网络编程 2024/11/16 佚名

2 0 1

极乐门资源网 Design By www.ioogu.com

思路分析：有3种情况

第一种情况，当前页面curPage < 4

第二种情况，当前页面curPage == 4

第三种情况，当前页面curPage>4

此外，还要考虑，当前页码 curPage < pageTotal（总页码）-2，才显示 ...

首先，先是前端的布局样式

<body>
   /*首先，在body中添加div id="pagination" */
   <div id="pagination">
<!-- 后面会在JS中动态追加 ，此处为了，实现前端效果，所以注册
<a id="prevBtn"><</a>
<a id="first">1</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >2</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >3</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >4</a>
<span>...</span>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="last">10</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="nextBtn"</a>
-->

   </div>
</body>

其次，是css代码

*{
      margin: 0;
      padding: 0;
    }
    #pagination{
      width: 500px;
      height: 100px;
      border: 2px solid crimson;
      
      margin: 50px auto ;
      padding-top: 50px ;
      padding-left: 50px;
    }
    
    .over,.pageItem{
      float: left;
      display: block;
      width: 35px;
      height: 35px;
      line-height: 35px;
      text-align: center;
    }
    
    .pageItem{
      border: 1px solid orangered;
      text-decoration: none;
      color: dimgrey;
      margin-right: -1px;/*解决边框加粗问题*/
    }
    .pageItem:hover{
      background-color: #f98e4594;
      color:orangered ;
    }
    .clearfix{
      clear: both;
    }
    .active{
      background-color: #f98e4594;
      color:orangered ;
    }
    .banBtn{
      border:1px solid #ff980069;
      color: #ff980069;
    }
    #prevBtn{
      margin-right: 10px;
    }
    #nextBtn{
      margin-left: 10px;
    }

JavaScript代码

<script type="text/javascript">
  
  var pageOptions = {pageTotal:10,curPage:7,paginationId:''};
  dynamicPagingFunc(pageOptions);
  
  function dynamicPagingFunc(pageOptions){
    var pageTotal = pageOptions.pageTotal || 1;
    var curPage = pageOptions.curPage||1;
    var doc = document;
    var paginationId = doc.getElementById(''+pageOptions.paginationId+'') || doc.getElementById('pagination');
    var html = '';
    if(curPage>pageTotal){
      curPage =1;
    }
    /*总页数小于5，全部显示*/
    if(pageTotal<=5){
      html = appendItem(pageTotal,curPage,html);
      paginationId.innerHTML = html;
    }
    /*总页数大于5时，要分析当前页*/
    if(pageTotal>5){
      if(curPage<=4){
        html = appendItem(pageTotal,curPage,html);
        paginationId.innerHTML = html;
      }else if(curPage>4){
        html = appendItem(pageTotal,curPage,html);
        paginationId.innerHTML = html;
      }
    }
  }
  
  function appendItem(pageTotal,curPage,html){
    var starPage = 0;
    var endPage = 0;
    
    html+='<a id="prevBtn">&lt;</a>';
    
    if(pageTotal<=5){
      starPage = 1;
      endPage = pageTotal;  
    }else if(pageTotal>5 && curPage<=4){
      starPage = 1;
      endPage = 4;
      if(curPage==4){
        endPage = 5;
      }
    }else{
      if(pageTotal==curPage){
        starPage = curPage-3;
        endPage = curPage;
      }else{
        starPage = curPage-2;
        endPage = curPage+1;
      }
      html += '<a id="first">1</a><span>...</span>';
    }
    
    for(let i = starPage;i <= endPage;i++){
      if(i==curPage){
        html += '<a id="first">'+i+'</a>';
      }else{
        html += '<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >'+i+'</a>';
      }
    }
    
    if(pageTotal<=5){
      html+='<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="nextBtn">&gt;</a>';
    }else{
      if(curPage<pageTotal-2){ 
        html += '<span>...</span>';
      }
      if(curPage<=pageTotal-2){
        html += '<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >'+pageTotal+'</a>';
      }
      html+='<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="nextBtn">&gt;</a>';
    }
    return html;
  }
  
</script>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

JS,前端,动态分页码

标签：

JS,前端,动态分页码

极乐门资源网 Design By www.ioogu.com

极乐门资源网 免责声明：本站文章均来自网站采集或用户投稿，网站不提供任何软件下载或自行开发的软件！如有用户或公司发现本站内容信息存在侵权行为，请邮件告知！ 858582#qq.com

极乐门资源网 Design By www.ioogu.com

评论“JS实现前端动态分页码代码实例”

暂无JS实现前端动态分页码代码实例的评论...

www.ioogu.com 极乐门资源网

139,976影音资源

144,792福利资源

21,817软件资源

631,128技术资源

JS实现前端动态分页码代码实例

JS,前端,动态分页码

Angular8 简单表单验证的实现示例

在Vue中创建可重用的 Transition的方法

评论“JS实现前端动态分页码代码实例”

RTX 5090要首发性能要翻倍！三星展示GDDR7显存

更新日志

友情链接

JS实现前端动态分页码代码实例

JS,前端,动态分页码

Angular8 简单表单验证的实现示例

在Vue中创建可重用的 Transition的方法

评论“JS实现前端动态分页码代码实例”

RTX 5090要首发 性能要翻倍！三星展示GDDR7显存

更新日志

友情链接

RTX 5090要首发性能要翻倍！三星展示GDDR7显存