在表格中加入斜线(html页面设计)

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<HTML>
<HEAD>
<TITLE> <table>单元格中划斜线 </TITLE>
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<TR bgcolor="FFFFFF">
<TH id="td1" height='40'>
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   <table border=0 width=100%><tr><th valign='middle' align='right' style='background:transparent'>分类</th></tr><tr><th valign='middle' align='left' style='background:transparent'>项目</th></tr>
   </table>
</div>
</TH>
<TH>张三</TH>
<TH>李四</TH>
<TH>王五</TH>
</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>
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