本文实例讲述了jQuery pager.js 插件动态分页功能。分享给大家供大家参考，具体如下：
pager.js 代码
function Page(opt){
var set = $.extend({num:null,startnum:1,elem:null,callback:null},opt||{});
if(set.startnum>set.num||set.startnum<1){
set.startnum = 1;
}
var n = 0,htm = '';
var clickpages = {
elem:set.elem,
num:set.num,
callback:set.callback,
init:function(){
this.elem.next('div.pageJump').children('.button').unbind('click')
this.JumpPages();
this.elem.children('li').click(function () {
var txt = $(this).children('a').text();
var page = '', ele = null;
var page1 = parseInt(clickpages.elem.children('li.active').attr('page'));
if (isNaN(parseInt(txt))) {
switch (txt) {
case '下一页':
if (page1 == clickpages.num) {
return;
}
if (page1 >= (clickpages.num - 2) || clickpages.num <= 6 || page1 < 3) {
ele = clickpages.elem.children('li.active').next();
} else {
clickpages.newPages('next', page1 + 1);
ele = clickpages.elem.children('li.active');
}
break;
case '上一页':
if (page1 == '1') {
return;
}
if (page1 >= (clickpages.num - 1) || page1 <= 3 || clickpages.num <= 6) {
ele = clickpages.elem.children('li.active').prev();
} else {
clickpages.newPages('prev', page1 - 1);
ele = clickpages.elem.children('li.active');
}
break;
case '首页':
if (page1 == '1') {
return;
}
if (clickpages.num > 6) {
clickpages.newPages('首页', 1);
}
ele = clickpages.elem.children('li[page=1]');
break;
case '尾页':
if (page1 == clickpages.num) {
return;
}
if (clickpages.num > 6) {
clickpages.newPages('尾页', clickpages.num);
}
ele = clickpages.elem.children('li[page=' + clickpages.num + ']');
break;
case '...':
return;
}
} else {
// if ((parseInt(txt) >= (clickpages.num - 3) || parseInt(txt) <= 3) && clickpages.num > 6) {
// clickpages.newPages('jump', parseInt(txt));
// }
// ele = $(this);
// }
// page = clickpages.actPages(ele);
// if (page != '' && page != page1) {
// if (clickpages.callback){
// clickpages.callback(parseInt(page));
// }
var i = parseInt(txt);
if(isNaN(i)||(i<=0)||i>clickpages.num){
return;
}else if(clickpages.num>6){
clickpages.newPages('jump',i);
}else{
var ele = clickpages.elem.children('li[page='+i+']');
clickpages.actPages(ele);
if (clickpages.callback){
clickpages.callback(i);
}
return;
}
if (clickpages.callback){
clickpages.callback(i);
}
}
});
},
//active
actPages:function (ele) {
ele.addClass('active').siblings().removeClass('active');
return clickpages.elem.children('li.active').text();
},
JumpPages:function () {
this.elem.next('div.pageJump').children('.button').click(function(){
var i = parseInt($(this).siblings('input').val());
if(isNaN(i)||(i<=0)||i>clickpages.num){
return;
}else if(clickpages.num>6){
clickpages.newPages('jump',i);
}else{
var ele = clickpages.elem.children('li[page='+i+']');
clickpages.actPages(ele);
if (clickpages.callback){
clickpages.callback(i);
}
return;
}
if (clickpages.callback){
clickpages.callback(i);
}
})
},
//newpages
newPages:function (type, i) {
var html = "",htmlLeft="",htmlRight="",htmlC="";
var HL = '<li><a>...</a></li>';
html = '<li class="topEnd"><a aria-label="Previous">首页</a></li>'
for (var n = 0;n<5;n++){
htmlC += '<li '+((n-1)==0"active"':'')+' page="'+(i+n-1)+'"><a>'+(i+n-1)+'</a></li>';
htmlLeft += '<li '+((n+2)==i"active"':'')+' page="'+(n+2)+'"><a>'+(n+2)+'</a></li>';
htmlRight += '<li '+((set.num+n-5)==i"active"':'')+' page="'+(set.num+n-5)+'"><a>'+(set.num+n-5)+'</a></li>';
}
switch (type) {
case "next":
if(i<=4){
html+='<li page="1"><a>1</a></li>'+htmlLeft+HL+'<li page="'+set.num+'"><a>'+set.num+'</a></li>';
}else if(i>=(set.num-3)){
html+='<li page="1"><a>1</a></li>'+HL+htmlRight+'<li page="'+set.num+'"><a>'+set.num+'</a></li>';
}else{
html += '<li page="1"><a>1</a></li>'+HL+htmlC+HL+'<li page="'+set.num+'"><a>'+set.num+'</a></li>';
}
break;
case "prev":
if(i<=4){
html+='<li page="1"><a>1</a></li>'+htmlLeft+HL+'<li page="'+set.num+'"><a>'+set.num+'</a></li>';
}else if(i>=(set.num-3)){
html+='<li page="1"><a>1</a></li>'+HL+htmlRight+'<li page="'+set.num+'"><a>'+set.num+'</a></li>';
}else{
html += '<li page="1"><a>1</a></li>'+HL+htmlC+HL+'<li page="'+set.num+'"><a>'+set.num+'</a></li>';
}
break;
case "首页" :
html+='<li class="active" page="1"><a>1</a></li>'+htmlLeft+HL+'<li page="'+set.num+'"><a>'+set.num+'</a></li>';
break;
case "尾页" :
html+='<li page="1"><a>1</a></li>'+HL+htmlRight+'<li class="active" page="'+set.num+'"><a>'+set.num+'</a></li>';
break;
case "jump" :
if(i<=4){
if(i==1){
html+='<li class="active" page="1"><a>1</a></li>'+htmlLeft+HL+'<li page="'+set.num+'"><a>'+set.num+'</a></li>';
}else{
html+='<li page="1"><a>1</a></li>'+htmlLeft+HL+'<li page="'+set.num+'"><a>'+set.num+'</a></li>';
}
}else if((i>=set.num-3)&&(set.num>=7)){
if(i==set.num){
html+='<li page="1"><a>1</a></li>'+HL+htmlRight+'<li class="active" page="'+set.num+'"><a>'+set.num+'</a></li>';
}else{
html+='<li page="1"><a>1</a></li>'+HL+htmlRight+'<li page="'+set.num+'"><a>'+set.num+'</a></li>';
}
}else{
html += '<li page="1"><a>1</a></li>'+HL+htmlC+HL+'<li page="'+set.num+'"><a>'+set.num+'</a></li>';
}
}
html += '<li class="topEnd"><a aria-label="Next">尾页</a></li>';
if (this.num > 5 || this.num < 3) {
set.elem.html(html);
clickpages.init({num:set.num,elem:set.elem,callback:set.callback});
}
}
}
if(set.num<=1){
$(".pagination").html('');
return;
}else if(parseInt(set.num)<=6){
n = parseInt(set.num);
var html='<li class="topEnd"><a aria-label="Previous">首页</a></li>';
for(var i=1;i<=n;i++){
if(i==set.startnum){
html+='<li class="active" page="'+i+'"><a>'+i+'</a></li>';
}else{
html+='<li page="'+i+'"><a>'+i+'</a></li>';
}
}
html +='<li class="topEnd"><a aria-label="Next">尾页</a></li>';
set.elem.html(html);
clickpages.init();
}else{
clickpages.newPages("jump",set.startnum)
}
}
上面是 pager.js部分
html部分
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