心扬JS分页函数代码

复制代码代码如下:
<！DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>JS分页</title>
<style type="text/css">
body{font-size:12px;}
#pager{ height:20px; float:left;}
#pager a{height:18px; line-height:18px; border:1px solid #ccc; padding-left:0.4em; padding-right:0.4em; text-decoration:none; display:block; float:left; margin:0px 3px;}
#pager a:hover{background-color:#1f3a87; color:#fff; text-decoration:none;}
.not-current{background-color:#fff; color:#1f3a87;}
.current{background-color:#1f3a87; color:#fff; text-decoration:none;}
</style>
</head>
<body onload="CreatePager（10,10,2043,"？page=14",10）">
<script type="text/javascript">
//pageSize,每页显示多少条记录,currentPage当前页,recordCount共有多少条记录,url页面路径，必须带有page参数,numCount，每页显示多少个分页数字
var CreatePager=function（pageSize,currentPage,recordCount,url,numCount）{
//创建一个链接
var CreateHref=function（url,page,p_ele,t,currentPage）{
var a=document.createElement（"a"）;
var reg=new RegExp（"page=\d+"）;
url=url.replace（reg.exec（url）,"page="+page）
a.setAttribute（"href",url）;
a.setAttribute（"class",currentPage==page？"current":"not-current"）;
var t=document.createTextNode（t）;
a.appendChild（t）;
document.getElementById（p_ele）.appendChild（a）;
}
//计算属于哪个区间
var GetNumArea=function（num,numCount,pageCount）{
var currentArea=parseInt（（num-1）/numCount）+1;
var lastArea=parseInt（（pageCount-1）/numCount）+1;
this.minNum=（currentArea-1）*numCount+1;
var tempTaxNumber=currentArea*numCount+1;
this.maxNum=tempTaxNumber>pageCount？pageCount:tempTaxNumber;
this.preAreaNum=currentArea<=1？1:this.minNum-1;
this.afterAreaNum=currentArea>=lastArea？pageCount:this.maxNum+1;
}
var pageCount=0;//总页数
pageCount=recordCount%pageSize===0？recordCount/pageSize:parseInt（recordCount/pageSize）+1;//总页数
// var pager=document.getElementById（"pager"）;//获取分页的元素
// var pageSummary=document.createElement（"span"）;//创建一个DIV，在里面显示第几页共几页
// var summaryContent=document.createTextNode（"第"+currentPage+"页共"+pageCount+"页"）;
// pageSummary.appendChild（summaryContent）;
// pager.appendChild（pageSummary）;
CreateHref（url,1,"pager","首页",currentPage）;//添加首页链接
CreateHref（url,new GetNumArea（currentPage,numCount,pageCount）.preAreaNum,"pager","<<",currentPage）;//添加前面的省略号
//显示分页数字开始
var pageArea = pageCount / numCount;// 页码区间
if（pageCount<numCount）{
for（i=1;i<=pageCount;i++）{
CreateHref（url,i,"pager",i,currentPage）;
}
}else{
currentPage=currentPage>=pageCount？pageCount:currentPage;
var minNum=new GetNumArea（currentPage,numCount,pageCount）.minNum;
var maxNum=new GetNumArea（currentPage,numCount,pageCount）.maxNum;
for（i=minNum;i<maxNum;i++）{
CreateHref（url,i,"pager",i,currentPage）;
}
}
//显示分页数字结束
CreateHref（url,new GetNumArea（currentPage,numCount,pageCount）.afterAreaNum,"pager",">>",currentPage）;//显示分页后面的省略号
CreateHref（url,pageCount,"pager","末页",currentPage）;//添加末页链
}
</script>
<div id="pager"></div>
</body>
</html>