js实现html table 表头，指定列锁定
实现效果如下：
感兴趣的朋友可以直接复制出来运行看效果。
1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <title>new document</title> 5 <script type="text/javascript" 6 src="http://code.jquery.com/jquery-1.6.1.min.js"></script> 7 8 <script type="text/Javascript"> 9 function FixTable(TableID, FixColumnNumber, width, height) { 10 /// <summary> 11 /// 锁定表头和列 12 /// <para> sorex.cnblogs.com </para> 13 /// </summary> 14 /// <param name="TableID" type="String"> 15 /// 要锁定的Table的ID 16 /// </param> 17 /// <param name="FixColumnNumber" type="Number"> 18 /// 要锁定列的个数 19 /// </param> 20 /// <param name="width" type="Number"> 21 /// 显示的宽度 22 /// </param> 23 /// <param name="height" type="Number"> 24 /// 显示的高度 25 /// </param> 26 if ($("#" + TableID + "_tableLayout").length != 0) { 27 $("#" + TableID + "_tableLayout").before($("#" + TableID)); 28 $("#" + TableID + "_tableLayout").empty(); 29 } 30 else { 31 $("#" + TableID).after("<div id='" + TableID + "_tableLayout' style='overflow:hidden;height:" + height + "px; width:" + width + "px;'></div>"); 32 } 33 $('<div id="' + TableID + '_tableFix"></div>' 34 + '<div id="' + TableID + '_tableHead"></div>' 35 + '<div id="' + TableID + '_tableColumn"></div>' 36 + '<div id="' + TableID + '_tableData"></div>').appendTo("#" + TableID + "_tableLayout"); 37 var oldtable = $("#" + TableID); 38 var tableFixClone = oldtable.clone(true); 39 tableFixClone.attr("id", TableID + "_tableFixClone"); 40 $("#" + TableID + "_tableFix").append(tableFixClone); 41 var tableHeadClone = oldtable.clone(true); 42 tableHeadClone.attr("id", TableID + "_tableHeadClone"); 43 $("#" + TableID + "_tableHead").append(tableHeadClone); 44 var tableColumnClone = oldtable.clone(true); 45 tableColumnClone.attr("id", TableID + "_tableColumnClone"); 46 $("#" + TableID + "_tableColumn").append(tableColumnClone); 47 $("#" + TableID + "_tableData").append(oldtable); 48 $("#" + TableID + "_tableLayout table").each(function () { 49 $(this).CSS("margin", "0"); 50 }); 51 var HeadHeight = $("#" + TableID + "_tableHead thead").height(); 52 HeadHeight += 2; 53 $("#" + TableID + "_tableHead").css("height", HeadHeight); 54 $("#" + TableID + "_tableFix").css("height", HeadHeight); 55 var ColumnsWidth = 0; 56 var ColumnsNumber = 0; 57 $("#" + TableID + "_tableColumn tr:last td:lt(" + FixColumnNumber + ")").each(function () { 58 ColumnsWidth += $(this).outerWidth(true); 59 ColumnsNumber++; 60 }); 61 ColumnsWidth += 2; 62 if ($.browser.msie) { 63 switch ($.browser.version) { 64 case "7.0": 65 if (ColumnsNumber >= 3) ColumnsWidth--; 66 break; 67 case "8.0": 68 if (ColumnsNumber >= 2) ColumnsWidth--; 69 break; 70 } 71 } 72 $("#" + TableID + "_tableColumn").css("width", ColumnsWidth); 73 $("#" + TableID + "_tableFix").css("width", ColumnsWidth); 74 $("#" + TableID + "_tableData").scroll(function () { 75 $("#" + TableID + "_tableHead").scrollLeft($("#" + TableID + "_tableData").scrollLeft()); 76 $("#" + TableID + "_tableColumn").scrollTop($("#" + TableID + "_tableData").scrollTop()); 77 }); 78 $("#" + TableID + "_tableFix").css({ "overflow": "hidden", "position": "relative", "z-index": "50", "background-color": "Silver" }); 79 $("#" + TableID + "_tableHead").css({ "overflow": "hidden", "width": width - 17, "position": "relative", "z-index": "45", "background-color": "Silver" }); 80 $("#" + TableID + "_tableColumn").css({ "overflow": "hidden", "height": height - 17, "position": "relative", "z-index": "40", "background-color": "Silver" }); 81 $("#" + TableID + "_tableData").css({ "overflow": "scroll", "width": width, "height": height, "position": "relative", "z-index": "35" }); 82 if ($("#" + TableID + "_tableHead").width() > $("#" + TableID + "_tableFix table").width()) { 83 $("#" + TableID + "_tableHead").css("width", $("#" + TableID + "_tableFix table").width()); 84 $("#" + TableID + "_tableData").css("width", $("#" + TableID + "_tableFix table").width() + 17); 85 } 86 if ($("#" + TableID + "_tableColumn").height() > $("#" + TableID + "_tableColumn table").height()) { 87 $("#" + TableID + "_tableColumn").css("height", $("#" + TableID + "_tableColumn table").height()); 88 $("#" + TableID + "_tableData").css("height", $("#" + TableID + "_tableColumn table").height() + 17); 89 } 90 $("#" + TableID + "_tableFix").offset($("#" + TableID + "_tableLayout").offset()); 91 $("#" + TableID + "_tableHead").offset($("#" + TableID + "_tableLayout").offset()); 92 $("#" + TableID + "_tableColumn").offset($("#" + TableID + "_tableLayout").offset()); 93 $("#" + TableID + "_tableData").offset($("#" + TableID + "_tableLayout").offset()); 94 } 95 $(document).ready(function () { 96 FixTable("MyTable", 1, 600, 400); 97 }); 98 </script> 99 </head>100 <body>101 <table style="border-bottom-color: black; border-top-color: black; width: 1000px; color: #000000; border-right-color: black; font-size: medium; border-left-color: black"102 id="MyTable" border="1" cellspacing="0" cellpadding="0">103 <thead>104 <tr>105 <th style="text-align: center; width: 80px" rowspan="3">姓名</th>106 <th style="text-align: center; width: 80px" rowspan="3">班级</th>107 <th style="text-align: center" colspan="10">成绩</th>108 </tr>109 <tr>110 <th style="text-align: center" colspan="3">主科</th>111 <th style="text-align: center" colspan="3">文科</th>112 <th style="text-align: center" colspan="3">理科</th>113 <th style="text-align: center; width: 80px" rowspan="2">总分</th>114 </tr>115 <tr>116 <th style="text-align: center; width: 80px">语文</th>117 <th style="text-align: center; width: 80px">数学</th>118 <th style="text-align: center; width: 80px">英语</th>119 <th style="text-align: center; width: 80px">政治</th>120 <th style="text-align:
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