为单元格加斜线

最新推荐文章于 2022-08-13 12:37:42 发布

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最新推荐文章于 2022-08-13 12:37:42 发布

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分类专栏： JavaScript 文章标签： generator border html function table null

本文链接：https://blog.youkuaiyun.com/dreamparks/article/details/7666961

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>

<script Language="javascript">

function drawPoint(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>");
}

function drawLine(obj,color)
{
L=obj.offsetLeft;
T=obj.offsetTop;
W=obj.offsetWidth;
H=obj.offsetHeight;
var x1=L,x2=L+W,y1=T,y2=T+H;
while(obj=obj.offsetParent)
{
x1+=obj.offsetLeft;
y1+=obj.offsetTop;
}
//**获取td1绝对坐标**//
x2=x1+W;
y2=y1+H;
for(var i=x1;i<=x2;i++)
{
x = i;
y = (y2 - y1) / (x2 - x1) * (x - x1) + y1;
drawPoint(x,y,color);
}
}
</script>

<body leftmargin=20 topmargin=20>
<TABLE border=0 bgcolor="000000" cellspacing="1" width=400>

<TR bgcolor="FFFFFF">
<TD id="td1"><div align="right">姓名</div><div align="left">科目</div></TD>

<TD>张三</TD>
<TD>李四</TD>
<TD>王五</TD>
</TR>
<TR bgcolor="FFFFFF">
<TD>数学</TD>
<TD>55</TD>
<TD>66</TD>
<TD>77</TD>
</TR>
<TR bgcolor="FFFFFF">
<TD>英语</TD>
<TD>99</TD>
<TD>68</TD>
<TD>71</TD>
</TR>
<TR bgcolor="FFFFFF">
<TD>语文</TD>
<TD>33</TD>
<TD>44</TD>
<TD>55</TD>
</TR>
</TABLE>
<script>

if(document.getElementById("td1") != null )
drawLine(td1,'#000000');
//**先要判断td1是否存在**//
</script>
</BODY>
</HTML>