效果图：
源码
<!DOCTYPE HTML>
<html>
<head>
<meta charset="gbk">
<title>table</title>
</head>
<body>
<table id="tb_1" cellspacing="0" cellpadding="2" width="100%" border="1">
<tbody>
<tr align="center" bgcolor="#dcdcdc">
<td style="width:100px;">用户编号</td>
<td>试用时间</td>
<td>转正时间</td>
<td>性别</td>
<td>姓名拼音</td>
<td>生日时间</td>
<td>民族</td>
<td>身高</td>
</tr>
<tr>
<td>2000001</td>
<td>1997-3-13</td>
<td>1997-3-13</td>
<td>1</td>
<td>WZJ</td>
<td>1965-3-13</td>
<td>汉</td>
<td>171</td>
</tr>
<tr>
<td>2000045</td>
<td>2001-2-15</td>
<td>2001-3-15</td>
<td>0</td>
<td>WY</td>
<td>1978-8-5</td>
<td>汉</td>
<td>162</td>
</tr>
<tr>
<td>2000046</td>
<td>2001-2-23</td>
<td>2001-3-23</td>
<td>0</td>
<td>LQ</td>
<td>2001-2-23</td>
<td>汉</td>
<td>171</td>
</tr>
</tbody>
</table>
<script type="text/javascript">
var tTD; //用来存储当前更改宽度的Table Cell,避免快速移动鼠标的问题
var table = document.getElementById("tb_1");
// console.log(table.rows[0]); //表头行
for (j = 0; j < table.rows[0].cells.length; j++) {
table.rows[0].cells[j].onmousedown = function () {
console.log("event",event);
//记录单元格
tTD = this;
if (event.offsetX > tTD.offsetWidth - 10) {
tTD.mouseDown = true;
tTD.oldX = event.x;
tTD.oldWidth = tTD.offsetWidth;
}
//记录Table宽度
//table = tTD; while (table.tagName != ‘TABLE') table = table.parentElement;
//tTD.tableWidth = table.offsetWidth;
};
table.rows[0].cells[j].onmouseup = function () {
//结束宽度调整
if (tTD == undefined) tTD = this;
tTD.mouseDown = false;
tTD.style.cursor = 'default';
};
table.rows[0].cells[j].onmousemove = function () {
//更改鼠标样式
if (event.offsetX > this.offsetWidth - 10)
this.style.cursor = 'col-resize';
else
this.style.cursor = 'default';
//取出暂存的Table Cell
if (tTD == undefined) tTD = this;
//调整宽度
if (tTD.mouseDown != null && tTD.mouseDown == true) {
tTD.style.cursor = 'default';
if (tTD.oldWidth + (event.x - tTD.oldX) > 0)
tTD.width = tTD.oldWidth + (event.x - tTD.oldX);
//调整列宽
tTD.style.width = tTD.width;
tTD.style.cursor = 'col-resize';
//调整该列中的每个Cell
table = tTD; while (table.tagName != 'TABLE') table = table.parentElement;
for (j = 0; j < table.rows.length; j++) {
table.rows[j].cells[tTD.cellIndex].width = tTD.width;
}
//调整整个表
//table.width = tTD.tableWidth + (tTD.offsetWidth – tTD.oldWidth);
//table.style.width = table.width;
}
};
}
</script>
</body>
</html>
参考链接：
