datatables的Bootstrap样式的分页怎么添加首页和尾页(引)

找到dataTables.bootstrap.js(版本3)：（此项目中文件名为：dataTableExt.js）

 $.fn.dataTableExt.oApi.fnPagingInfo = function ( oSettings )
 {
     return {
         "iStart":         oSettings._iDisplayStart,
         "iEnd":           oSettings.fnDisplayEnd(),
         "iLength":        oSettings._iDisplayLength,
         "iTotal":         oSettings.fnRecordsTotal(),
         "iFilteredTotal": oSettings.fnRecordsDisplay(),
         "iPage":          oSettings._iDisplayLength === -1 ?
             0 : Math.ceil( oSettings._iDisplayStart / oSettings._iDisplayLength ),
         "iTotalPages":    oSettings._iDisplayLength === -1 ?
             0 : Math.ceil( oSettings.fnRecordsDisplay() / oSettings._iDisplayLength )
     };
 }

 /* Bootstrap style pagination control */
 $.extend( $.fn.dataTableExt.oPagination, {
     "bootstrap": {
         "fnInit": function( oSettings, nPaging, fnDraw ) {
             var oLang = oSettings.oLanguage.oPaginate;
             var fnClickHandler = function ( e ) {
                 e.preventDefault();
                 if ( oSettings.oApi._fnPageChange(oSettings, e.data.action) ) {
                     fnDraw( oSettings );
                 }
             };

             $(nPaging).addClass('pagination').append(
                 '<ul>' +
                 '<li class="sFirst disabled"><a href="#"> ' + oLang.sFirst + '</a></li>' + //添加首页显示
                    '<li class="prev disabled"><a href="#"> ' + oLang.sPrevious + '</a></li>' + // '<li class="prev disabled"><a href="#">&larr; '+oLang.sPrevious+'</a></li>'+
                    '<li class="next disabled"><a href="#">' + oLang.sNext + '</a></li>' + // '<li class="next disabled"><a href="#">'+oLang.sNext+' &rarr; </a></li>'+
                    '<li class="sLast disabled"><a href="#"> ' + oLang.sLast + '</a></li>' + //添加尾页显示
                 '</ul>'
             );
             var els = $('a', nPaging);
             $(els[0]).bind('click.DT', { action: "first" }, fnClickHandler); //绑定首页事件
             $(els[1]).bind('click.DT', { action: "previous" }, fnClickHandler);
             $(els[2]).bind('click.DT', { action: "next" }, fnClickHandler);
             $(els[3]).bind('click.DT', { action: "last" }, fnClickHandler);//绑定尾页事件
             //$(els[0]).bind( 'click.DT', { action: "previous" }, fnClickHandler );
             //$(els[1]).bind( 'click.DT', { action: "next" }, fnClickHandler );
         },

         "fnUpdate": function ( oSettings, fnDraw ) {
             var iListLength = 5;
             var oPaging = oSettings.oInstance.fnPagingInfo();
             var an = oSettings.aanFeatures.p;
             var i, j, sClass, iStart, iEnd, iHalf=Math.floor(iListLength/2);

             if ( oPaging.iTotalPages < iListLength) {
                 iStart = 1;
                 iEnd = oPaging.iTotalPages;
             }
             else if ( oPaging.iPage <= iHalf ) {
                 iStart = 1;
                 iEnd = iListLength;
             } else if ( oPaging.iPage >= (oPaging.iTotalPages-iHalf) ) {
                 iStart = oPaging.iTotalPages - iListLength + 1;
                 iEnd = oPaging.iTotalPages;
             } else {
                 iStart = oPaging.iPage - iHalf + 1;
                 iEnd = iStart + iListLength - 1;
             }

             for ( i=0, iLen=an.length ; i<iLen ; i++ ) {
                 // Remove the middle elements
                 $('li:gt(1)', an[i]).filter(':lt(-2)').remove(); // 此处修改 $('li:gt(0)', an[i]).filter(':not(:last)').remove();

                 // Add the new list items and their event handlers
                 for ( j=iStart ; j<=iEnd ; j++ ) {
                     sClass = (j==oPaging.iPage+1) ? 'class="active"' : '';
                     $('<li '+sClass+'><a href="#">'+j+'</a></li>')
                         .insertBefore($('li:eq(-2)', an[i])[0])//此处修改 .insertBefore($('li:last', an[i])[0])
                         .bind('click', function (e) {
                             e.preventDefault();
                             oSettings._iDisplayStart = (parseInt($('a', this).text(),10)-1) * oPaging.iLength;
                             fnDraw( oSettings );
                         } );
                 }

                 // Add / remove disabled classes from the static elements
                 if ( oPaging.iPage === 0 ) {
                     $('li:lt(2)', an[i]).addClass('disabled'); //此处修改 $('li:first', an[i]).addClass('disabled');
                 } else {
                     $('li:lt(2)', an[i]).removeClass('disabled'); //此处修改 $('li:first', an[i]).removeClass('disabled');
                 }

                 if ( oPaging.iPage === oPaging.iTotalPages-1 || oPaging.iTotalPages === 0 ) {
                     $('li:gt(-3)', an[i]).addClass('disabled'); //此处修改 $('li:last', an[i]).addClass('disabled');
                 } else {
                     $('li:gt(-3)', an[i]).removeClass('disabled'); //此处修改 $('li:last', an[i]).removeClass('disabled');
                 }
             }
         }
     }
 } );

改之前显示效果：

改之后显示效果：