JavaScript实现表格排序方法
参考代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>JavaScript控制网页内表格排序</title>
<style>
*{font-family:Arial, Helvetica, sans-serif;font-size:14px;border:none;}
body{text-align:center;}
table{margin:100px auto;}
td{width:100px;height:24px;text-align:center;line-height:24px;border:1px solid silver;}
.red{color:red;}
.top{background:#CCCCCC;cursor:pointer;}
.up{background:#FFFFCC url(up.gif) no-repeat right 5px;}
.down{background:#FFFFCC url(down.gif) no-repeat right 5px;}
.hov{background:#F0EFE5;}
</style>
</head>
<body>
<table cellpadding="0" id="table">
<tr class="top"><td>点击排序</td><td >点击排序</td><td>点击排序</td><td>点击排序</td></tr>
<tr>
<td><span id="bfn_la_bac.usa">15.43</span></td>
<td class="red">700</td>
<td>1.220</td>
<td class="red">www.corange.cn</td>
</tr>
<tr><td><span id="bfn_la_c.usa">7.05</span></td>
<td class="red">4</td>
<td>3,000</td>
<td class="red">asp</td>
</tr>
<tr><td><span id="bfn_la_jpm.usa">30.62</span></td>
<td class="red">30</td>
<td>2,558,800</td>
<td class="red">php</td>
</tr>
<tr>
<td><span id="bfn_la_axp.usa">22.30</span></td>
<td class="red">5</td><td>6</td>
<td class="red">js</td>
</tr>
<tr><td><span id="bfn_la_mrk.usa">26.31</span></td>
<td class="red">0.6</td><td>5</td>
<td class="red">网站开发</td>
</tr>
<tr><td><span id="bfn_la_pg.usa">63.16</span></td>
<td class="red">7</td><td>4</td>
<td class="red">子</td>
</tr>
</table>
<script type="text/javascript">
var tableSort = function(){
this.initialize.apply(this,arguments);
}
tableSort.prototype = {
initialize : function(tableId,clickRow,startRow,endRow,classUp,classDown,selectClass){
this.Table = document.getElementById(tableId);
this.rows = this.Table.rows;//所有行
this.Tags = this.rows[clickRow-1].cells;//标签td
this.up = classUp;
this.down = classDown;
this.startRow = startRow;
this.selectClass = selectClass;
this.endRow = (endRow == 999? this.rows.length : endRow);
this.T2Arr = this._td2Array();//所有受影响的td的二维数组
this.setShow();
},
//设置标签切换
setShow:function(){
var defaultClass = this.Tags[0].className;
for(var Tag ,i=0;Tag = this.Tags[i];i++){
Tag.index = i;
addEventListener(Tag ,'click', Bind(Tag,statu));
}
var _this =this;
var turn = 0;
function statu(){
for(var i=0;i<_this.Tags.length;i++){
_this.Tags[i].className = defaultClass;
}
if(turn==0){
addClass(this,_this.down)
_this.startArray(0,this.index);
turn=1;
}else{
addClass(this,_this.up)
_this.startArray(1,this.index);
turn=0;
}
}
},
//设置选中列样式
colClassSet:function(num,cla){
//得到关联到的td
for(var i= (this.startRow-1);i<(this.endRow);i++){
for(var n=0;n<this.rows[i].cells.length;n++){
removeClass(this.rows[i].cells[n],cla);
}
addClass(this.rows[i].cells[num],cla);
}
},
//开始排序 num 根据第几列排序 aord 逆序还是顺序
startArray:function(aord,num){
var afterSort = this.sortMethod(this.T2Arr,aord,num);//排序后的二维数组传到排序方法中去
this.array2Td(num,afterSort);//输出
},
//将受影响的行和列转换成二维数组
_td2Array:function(){
var arr=[];
for(var i=(this.startRow-1),l=0;i<(this.endRow);i++,l++){
arr[l]=[];
for(var n=0;n<this.rows[i].cells.length;n++){
arr[l].push(this.rows[i].cells[n].innerHTML);
}
}
return arr;
},
//根据排序后的二维数组来输出相应的行和列的 innerHTML
array2Td:function(num,arr){
this.colClassSet(num,this.selectClass);
for(var i= (this.startRow-1),l=0;i<(this.endRow);i++,l++){
for(var n=0;n<this.Tags.length;n++){
this.rows[i].cells[n].innerHTML = arr[l][n];
}
}
},
//传进来一个二维数组，根据二维数组的子项中的w项排序，再返回排序后的二维数组
sortMethod:function(arr,aord,w){
//var effectCol = this.getColByNum(whichCol);
arr.sort(function(a,b){
x = killHTML(a[w]);
y = killHTML(b[w]);
x = x.replace(/,/g,'');
y = y.replace(/,/g,'');
switch (isNaN(x)){
case false:
return Number(x) - Number(y);
break;
case true:
return x.localeCompare(y);
break;
}
});
arr = aord==0?arr:arr.reverse();
return arr;
}
}
/*-----------------------------------*/
function addEventListener(o,type,fn){
if(o.attachEvent){o.attachEvent('on'+type,fn)}
else if(o.addEventListener){o.addEventListener(type,fn,false)}
else{o['on'+type] = fn;}
}
function hasClass(element, className) {
var reg = new RegExp('(\\s|^)'+className+'(\\s|$)');
return element.className.match(reg);
}
function addClass(element, className) {
if (!this.hasClass(element, className))
{
element.className += " "+className;
}
}
function removeClass(element, className) {
if (hasClass(element, className)) {
var reg = new RegExp('(\\s|^)'+className+'(\\s|$)');
element.className = element.className.replace(reg,' ');
}
}
var Bind = function(object, fun) {
return function() {
return fun.apply(object, arguments);
}
}
//去掉所有的html标记
function killHTML(str){
return str.replace(/<[^>]+>/g,"");
}
//------------------------------------------------
//tableid 第几行是标签行，从第几行开始排序，第几行结束排序(999表示最后) 升序标签样式，降序标签样式 选中列样式
//注意标签行的class应该是一致的
var ex1 = new tableSort('table',1,2,999,'up','down','hov');
</script>
<br><br>
</body>
</html>