问题：table 可否实现对角线；结果：HTML 斜线 表头
<HTML>
<HEAD>
<TITLE>斜线表头</TITLE>
</HEAD>
<script Language="javascript">
function a(x,y,color)
{document.write("<img
border='0' style='position: absolute; left: "+(x)+";
top: "+(y)+";background-color: "+color+"' src='px.gif'
width=1 height=1>")}
</script>
<body leftmargin=0 topmargin=0> <br>
<TABLE border=0 bgcolor="000000" cellspacing="1" width=400 >
<TR bgcolor="FFFFFF">
<TD
width="111" height="52" ><table width="100%"
height="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td id="td1"></td>
<td>成绩</td>
</tr>
<tr>
<td>姓名</td>
<td id="td2"></td>
</tr>
</table></TD>
<TD width="81">数学</TD>
<TD width="96">英语</TD>
<TD width="99">C语言</TD>
</TR>
<TR bgcolor="FFFFFF">
<TD>张三</TD>
<TD>55</TD>
<TD>66</TD>
<TD>77</TD>
</TR>
<TR bgcolor="FFFFFF">
<TD>李四</TD>
<TD>99</TD>
<TD>68</TD>
<TD>71</TD>
</TR>
<TR bgcolor="FFFFFF">
<TD>王五</TD>
<TD>33</TD>
<TD>44</TD>
<TD>55</TD>
</TR>
</TABLE>
<script>
function getTop(tdobj)
{
vParent = tdobj.offsetParent;
t = tdobj.offsetTop;
while (vParent.tagName.toUpperCase() != "BODY")
{
t += vParent.offsetTop;
vParent = vParent.offsetParent;
}
return t;
}
function getLeft(tdobj)
{
vParent = tdobj.offsetParent;
t = tdobj.offsetLeft;
while (vParent.tagName.toUpperCase() != "BODY")
{
t += vParent.offsetLeft;
vParent = vParent.offsetParent;
}
return t;
}
function line(x1,y1,x2,y2,color)
{
var tmp
if(x1>=x2)
{
tmp=x1;
x1=x2;
x2=tmp;
tmp=y1;
y1=y2;
y2=tmp;
}
for(var i=x1;i<=x2;i++)
{
x = i;
y = (y2 - y1) / (x2 - x1) * (x - x1) + y1;
a(x,y,color);
}
}
//line(1,1,100,100,"000000");
line(getLeft(td1),getTop(td1),getLeft(td1)+td1.offsetWidth,getTop(td1)+td1.offsetHeight,'#000000');
line(getLeft(td2),getTop(td2),getLeft(td2)+td2.offsetWidth,getTop(td2)+td2.offsetHeight,'#000000');
</script>
</BODY>
</HTML>
效果 ：
