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做了一个jquery插件，使表格的标题列可左右拉伸
示例下载
插件名称命名为:jquery.tableresize.js，代码如下：
/*Writen by mlcactus, 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 var id = _table.attr("id") || "tableresize_" + (Math.random() * 100000).toFixed(0).toString(); var tr = _table.find("tr").first(), ths = tr.children(), _firstth = ths.first(); //设定临时变量存放对象 var cobjs = $.tableresize[id] = {}; cobjs._currentObj = null, cobjs._currentLeft = null; ths.mousemove(function (e) { var _this = $(this); var left = _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; var leftside = !_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：
<!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 runat="server"> <title></title> <style type="text/css" > td{ text-align:center;} </style> <script type="text/javascript" src="http://www.mamicode.com/script/jquery-1.10.2.js"></script> <script type="text/javascript" src="http://www.mamicode.com/script/jquery.tableresize.js"></script> <script type="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/> <table cellspacing="0" border="1" style="border-collapse:collapse;" rules="all"> <tbody><tr> <td style="width:200px;">ID</td><td style="width:200px;">名字</td><td style="width:200px;">年纪</td><td style="width:200px;">地址</td><td style="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/> <table cellspacing="0" border="1" style="border-collapse:collapse;" rules="all"> <tbody><tr> <td style="width:200px;">ID</td><td style="width:200px;">名字</td><td style="width:200px;">年纪</td><td style="width:200px;">地址</td><td style="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>做了一个jquery插件，使表格的标题列可左右拉伸
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