基于jquery编写分页插件

扩展JQuery很容易，作为一个练习，编写一个简单的分页插件，代码量不大，直接看代码好了：

$.fn.mypagination = function(totalProperty,opts){ 
  opts = $.extend({ 
    perPage:10, 
  
    callback:function(){ 
    } 
  },opts||{}); 
     
  return this.each(function(){ 
    function numPages(){ 
      return Math.ceil(totalProperty/opts.perPage); 
    } 
  
     
    function selectPage(page){ 
      return function(){ 
        currPage = page; 
        if (page<0) currPage = 0; 
        if (page>=numPages()) currPage = numPages()-1; 
        render(); 
  
        $('img.page-wait',panel).attr('src','images/wait.gif'); 
        opts.callback(currPage+1); 
        $('img.page-wait',panel).attr('src','images/nowait.gif'); 
      } 
    } 
     
    function render(){ 
  
      var html = ''  
        +'' 
        +'' 
        +'' 
        +'' 
        +'' 
        +'' 
        +'' 
        +'
第页/共'+numPages()+'页
检索到'+totalProperty+'记录
'; 
      var imgFirst = 'images/page-first-disabled.gif'; 
      var imgPrev = 'images/page-prev-disabled.gif'; 
      var imgNext = 'images/page-next-disabled.gif'; 
      var imgLast = 'images/page-last-disabled.gif'; 
      if (currPage > 0){ 
        imgFirst = 'images/page-first.gif'; 
        imgPrev = 'images/page-prev.gif'; 
      } 
      if (currPage < numPages()-1){ 
        imgNext = 'images/page-next.gif'; 
        imgLast = 'images/page-last.gif'; 
      } 
      panel.empty(); 
      panel.append(html); 
      $('img.page-first',panel) 
        .bind('click',selectPage(0)) 
        .attr('src',imgFirst);  
      $('img.page-prev',panel) 
        .bind('click',selectPage(currPage-1)) 
        .attr('src',imgPrev);   
      $('img.page-next',panel) 
        .bind('click',selectPage(currPage+1)) 
        .attr('src',imgNext);   
      $('img.page-last',panel) 
        .bind('click',selectPage(numPages()-1)) 
        .attr('src',imgLast); 
      $('input.page-num',panel) 
        .val(currPage+1) 
        .change(function(){ 
          selectPage($(this).val()-1)(); 
        }); 
    } 
     
    var currPage = 0; 
    var panel = $(this); 
    render(); 
  
  }); 
} 

下面测试一下：

运行效果图如下：

以上就是本文的全部内容，希望对大家的学习有所帮助。