这节介绍如何自定义jquery插件，实现分页效果，话不多说，先看看实现的效果：
分页插件
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta charset="utf-8">
<title>page test</title>
<style>
html,body,#pages,items{
font-size:11px;
font-family:"宋体","Times New Roman";
}
.page_item{
background:#C9DCD7;
width:155px;
text-align:left;
padding:10px;
border-bottom:1px solid #3CF;
}
.page_item:hover{
background:#A9C9FA;
cursor:pointer;
}
#page_ctrl{
padding-top:5px;
}
.page_ctrl{
width:40px;
text-align:center;
background:#A9C9FA;
float:left;
margin:2px;
padding-top:5px;
padding-bottom:5px;
}
.page_ctrl:hover{
background:#C9DCD7;
cursor:pointer;
}
</style>
<script type="text/javascript" src="../../zTree/js/jquery-1.4.4.min.js"></script>
<script type="text/javascript">
var showItemInfo;
(function($){
$.fn.itemPage = function(options){
var defaults = {};
var options = $.extend(defaults, options);
var data=options.data,//数据
currpage=options.currpage,//当前页
pagesize=options.pagesize;//每页显示的数据条目器
var total=data.total;
var items=$("<div id='items'></div>"),
pagectrl=$("<div id='page_ctrl'></div>");
var first=$("<div id=\"first\" class=\"page_ctrl\" onClick=\"showPage('first')\">首 页</div>"),
prev=$("<div id=\"prev\" class=\"page_ctrl\" onClick=\"showPage('prev')\">前一页</div>"),
next=$("<div id=\"next\" class=\"page_ctrl\" onClick=\"showPage('next')\">后一页</div>"),
last=$("<div id=\"last\" class=\"page_ctrl\" onClick=\"showPage('last')\">末 页</div>");
var start=getStartindex(),
end=getEndindex();
for(var i=start;i<end;i++){
var itemi=$("<div class='page_item' onClick='showItemInfo("+i+")'>"+data.items[i].text+"</div>");
items.append(itemi);
}
pagectrl.append(first),
pagectrl.append(prev),
pagectrl.append(next)
pagectrl.append(last);
var container = $(this);
container.append(items),
container.append(pagectrl);
function getStartindex(){
return (currpage-1)*pagesize;
}
function getEndindex(){
var endIndex=0;
if(data.total%pagesize!=0 && currpage==getLastPage()){
endIndex = data.total;
}
else {
endIndex = currpage*pagesize;
}
return endIndex;
}
showItemInfo = function(i){
console.log(i);
};
}
})(jQuery);
</script>
<script type="text/javascript">
var PAGE_DATA={
"total":10,
"items":[
{"id":1,"text":"数据1"},
{"id":2,"text":"数据2"},
{"id":3,"text":"数据3"},
{"id":4,"text":"数据4"},
{"id":5,"text":"数据5"},
{"id":6,"text":"数据6"},
{"id":7,"text":"数据7"},
{"id":8,"text":"数据8"},
{"id":9,"text":"数据9"},
{"id":10,"text":"数据10"}
]
};
var currpage=1;
var pagesize=4;
$(document).ready(function (){
loadPages(currpage);
});
function showPage(page){
console.log(page);
switch(page){
case "prev":{//前一页
if(currpage>1){
currpage=currpage-1;
}
else{
alert("没有上一页了！");
}
break;
}
case "next":{//后一页
if(currpage!=getLastPage()){
currpage=currpage+1;
}
else{
alert("没有下一页了！");
}
break;
}
case "last":{//最后一页
currpage=getLastPage();
break;
}
default:{
currpage=1;//第一页
break;
}
}
loadPages(currpage);
};
function loadPages(page){
$('#pages').html("");
$('#pages').itemPage({
data:PAGE_DATA,
currpage:page,
pagesize:pagesize
});
};
function getLastPage(){
var total=PAGE_DATA.total;
if(total%pagesize==0){
return total/pagesize;
}
else{
return parseInt(total/pagesize)+1;
}
}
</script>
</head>
<body>
<div id="pages">
</div>
</body>
</html>原文：http://blog.csdn.net/gisshixisheng/article/details/40048451