使表格的标题列可左右拉伸jquery插件封装
插件名称命名为:jquery.tableresize.js，代码如下：
/*
Writenbymlcactus,2014-11-24
这是我封装的一个jquery插件，能够使table的各列可以左右拉伸，从而使宽度变小或变大
用法：
单个table：$("#table_id").tableresize();
页面所有table：$("table").tableresize();
*/
(function($){
$.fn.tableresize=function(){
var_document=$("body");
$(this).each(function(){
if(!$.tableresize){
$.tableresize={};
}
var_table=$(this);
//设定ID
varid=_table.attr("id")||"tableresize_"+(Math.random()*100000).toFixed(0).toString();
vartr=_table.find("tr").first(),ths=tr.children(),_firstth=ths.first();
//设定临时变量存放对象
varcobjs=$.tableresize[id]={};
cobjs._currentObj=null,cobjs._currentLeft=null;
ths.mousemove(function(e){
var_this=$(this);
varleft=_this.offset().left,top=_this.offset().top,width=_this.width(),height=_this.height(),right=left+width,bottom=top+height,clientX=e.clientX,clientY=e.clientY;
varleftside=!_firstth.is(_this)&&Math.abs(left-clientX)<=5,rightside=Math.abs(right-clientX)<=5;
if(cobjs._currentLeft||clientY>top&&clientY<bottom&&(leftside||rightside)){
_document.css("cursor","e-resize");
if(!cobjs._currentLeft){
if(leftside){
cobjs._currentObj=_this.prev();
}
else{
cobjs._currentObj=_this;
}
}
}
else{
cobjs._currentObj=null;
}
});
ths.mouseout(function(e){
if(!cobjs._currentLeft){
cobjs._currentObj=null;
_document.css("cursor","auto");
}
});
_document.mousedown(function(e){
if(cobjs._currentObj){
cobjs._currentLeft=e.clientX;
}
else{
cobjs._currentLeft=null;
}
});
_document.mouseup(function(e){
if(cobjs._currentLeft){
cobjs._currentObj.width(cobjs._currentObj.width()+(e.clientX-cobjs._currentLeft));
}
cobjs._currentObj=null;
cobjs._currentLeft=null;
_document.css("cursor","auto");
});
});
};
})(jQuery);
页面代码为：
<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<htmlxmlns="http://www.w3.org/1999/xhtml">
<headrunat="server">
<title></title>
<styletype="text/css">
td{text-align:center;}
</style>
<scripttype="text/javascript"src="script/jquery-1.10.2.js"></script>
<scripttype="text/javascript"src="script/jquery.tableresize.js"></script>
<scripttype="text/javascript">
$(document).ready(function(){
//使两张table同时支持左右拉伸
$("table").tableresize();
});
</script>
</head>
<body>
表格1<br/>
<tablecellspacing="0"border="1"style="border-collapse:collapse;"rules="all">
<tbody><tr>
<tdstyle="width:200px;">ID</td><tdstyle="width:200px;">名字</td><tdstyle="width:200px;">年纪</td><tdstyle="width:200px;">地址</td><tdstyle="width:200px;">电话</td>
</tr><tr>
<td>22</td><td>Name:44</td><td>Age:23</td><td>Address:47</td><td>Phone:15</td>
</tr><tr>
<td>28</td><td>Name:42</td><td>Age:68</td><td>Address:30</td><td>Phone:50</td>
</tr><tr>
<td>29</td><td>Name:63</td><td>Age:48</td><td>Address:90</td><td>Phone:76</td>
</tr>
</tbody>
</table>
<br/>表格2<br/>
<tablecellspacing="0"border="1"style="border-collapse:collapse;"rules="all">
<tbody><tr>
<tdstyle="width:200px;">ID</td><tdstyle="width:200px;">名字</td><tdstyle="width:200px;">年纪</td><tdstyle="width:200px;">地址</td><tdstyle="width:200px;">电话</td>
</tr><tr>
<td>22</td><td>Name:44</td><td>Age:23</td><td>Address:47</td><td>Phone:15</td>
</tr><tr>
<td>28</td><td>Name:42</td><td>Age:68</td><td>Address:30</td><td>Phone:50</td>
</tr>
</tbody></table>
</body>
</html>