jquery.pager.js实现分页效果

<link href="/stylesheets/Pager.css" rel="stylesheet" type="text/css"/>
 <script src="/UploadFiles/2021-04-02/jquery.pager.js">

2.Pager.css


#pager ul.pages{
 display:block;
 border:none;
 text-transform:uppercase;
 font-size:10px;margin:10px 0 50px;padding:0;
}
#pager ul.pages li{
 list-style:none;
 float:left;
 border:1px solid #ccc;
 text-decoration:none;
 margin:-20px 5px 0 0;padding:5px;
}
#pager ul.pages li:hover{border:1px solid #003f7e; }
#pager ul.pages li.pgEmpty{
 border:1px solid #eee;
 color:#eee;
}
#pager ul.pages li.pgCurrent{
 border:1px solid #3c90d9;
 color: #fff;
 font-weight:700;
 /*background-color:#eee;*/
 background: #3c90d9 none repeat scroll 0 0;
}
#pager{margin-left: 290px;}


3.jquery.pager.js


/*
 * jQuery pager plugin
 * Version 1.0 (12/22/2008)
 * @requires jQuery v1.2.6 or later
 *
 * Example at: http://jonpauldavies.github.com/JQuery/Pager/PagerDemo.html
 *
 * Copyright (c) 2008-2009 Jon Paul Davies
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * Read the related blog post and contact the author at http://www.j-dee.com/2008/12/22/jquery-pager-plugin/
 *
 * This version is far from perfect and doesn't manage it's own state, therefore contributions are more than welcome!
 *
 * Usage: .pager({ pagenumber: 1, pagecount: 15, buttonClickCallback: PagerClickTest });
 *
 * Where pagenumber is the visible page number
 *  pagecount is the total number of pages to display
 *  buttonClickCallback is the method to fire when a pager button is clicked.
 *
 * buttonClickCallback signiture is PagerClickTest = function(pageclickednumber)
 * Where pageclickednumber is the number of the page clicked in the control.
 *
 * The included Pager.CSS file is a dependancy but can obviously tweaked to your wishes
 * Tested in IE6 IE7 Firefox & Safari. Any browser strangeness, please report.
 */
(function($) {

 $.fn.pager = function(options) {

  var opts = $.extend({}, $.fn.pager.defaults, options);

  return this.each(function() {

   // empty out the destination element and then render out the pager with the supplied options
   $(this).empty().append(renderpager(parseInt(options.pagenumber), parseInt(options.pagecount), options.buttonClickCallback));

   // specify correct cursor activity
   $('.pages li').mouseover(function() { document.body.style.cursor = "pointer"; }).mouseout(function() { document.body.style.cursor = "auto"; });
  });
 };

 // render and return the pager with the supplied options
 function renderpager(pagenumber, pagecount, buttonClickCallback) {

  // setup $pager to hold render
  var $pager = $('<ul class="pages"></ul>');

  // add in the previous and next buttons
  //$pager.append(renderButton('first', pagenumber, pagecount, buttonClickCallback)).append(renderButton('prev', pagenumber, pagecount, buttonClickCallback));
  $pager.append(renderButton('上一页', pagenumber, pagecount, buttonClickCallback));
  // pager currently only handles 10 viewable pages ( could be easily parameterized, maybe in next version ) so handle edge cases
  var startPoint = 1;
  //var endPoint = 9;
  var endPoint = 5;
  if (pagenumber > 4 && pagenumber<pagecount-1) {
   startPoint = pagenumber - 2;
   endPoint = pagenumber + 2;
  }
  if(pagenumber>pagecount-2&& pagenumber<pagecount+1){
   startPoint = pagecount - 4;
   endPoint = pagecount;
  }
  if (endPoint > pagecount) {
   startPoint = pagecount - 8;
   endPoint = pagecount;
  }

  if (startPoint < 1) {
   startPoint = 1;
  }

  // loop thru visible pages and render buttons
  for (var page = startPoint; page <= endPoint; page++) {

   var currentButton = $('<li class="page-number">' + (page) + '</li>');

   page == pagenumber "pgNext">' + buttonLabel + '</li>');

  var destPage = 1;

  // work out destination page for required button type
  switch (buttonLabel) {
   case "first":
    destPage = 1;
    break;
   case "上一页":
    destPage = pagenumber - 1;
    break;
   case "下一页":
    destPage = pagenumber + 1;
    break;
   case "last":
    destPage = pagecount;
    break;
  }

  // disable and 'grey' out buttons if not needed.
  if (buttonLabel == "first" || buttonLabel == "上一页") {
   pagenumber <= 1 ? $Button.addClass('pgEmpty') : $Button.click(function() { buttonClickCallback(destPage); });
  }
  else {
   pagenumber >= pagecount ? $Button.addClass('pgEmpty') : $Button.click(function() { buttonClickCallback(destPage); });
  }

  return $Button;
 }

 // pager defaults. hardly worth bothering with in this case but used as placeholder for expansion in the next version
 $.fn.pager.defaults = {
  pagenumber: 1,
  pagecount: 1
 };

})(jQuery);



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