修改了一下你的代码(在第一个),增加了border-bottom-width:0.0mm可以达到你的要求
<span id="WebForm2_w_文本域1_0" style="border-width:0.2mm;border-style:Solid;height:9.2mm;width:62.4mm;border-bottom-width:0.0mm;TOP:28.65mm;LEFT:28.65mm;Position:absolute;Top:28.65mm;Left:28.65mm;"></span>可以Mark么?
<span id="WebForm2_w_文本域1_0" style="border-width:0.2mm;border-style:Solid;height:9.2mm;width:62.4mm;border-bottom-width:0.0mm;TOP:28.65mm;LEFT:28.65mm;Position:absolute;Top:28.65mm;Left:28.65mm;"></span>可以Mark么?
</span><span id="WebForm2_w_文本域3_1" style="BORDER-RIGHT:0.18mm solid; BORDER-TOP:0.18mm solid; LEFT:28.58mm; BORDER-LEFT:0.18mm solid; WIDTH:62.36mm; BORDER-BOTTOM:0.18mm solid; POSITION:absolute; TOP:149px; HEIGHT:50px">
</span>
<TABLE id="Table1" cellSpacing="1" cellPadding="1" width="300" border="1">
<TR>
<TD><span id="WebForm2_w_文本域1_0" style="BORDER-RIGHT:0.2mm solid; BORDER-TOP:0.2mm solid; BORDER-LEFT:0.2mm solid; WIDTH:62.39mm; BORDER-BOTTOM:0.2mm solid; HEIGHT:20mm">
</span><span id="WebForm2_w_文本域3_1" style="BORDER-RIGHT:0.18mm solid; BORDER-TOP:0.18mm; BORDER-LEFT:0.18mm solid; WIDTH:62.36mm; BORDER-BOTTOM:0.18mm solid; HEIGHT:20mm">
</span><SPAN id="Span1" style="BORDER-RIGHT: 0.18mm solid; BORDER-TOP: 0.18mm; BORDER-LEFT: 0.18mm solid; WIDTH: 62.36mm; BORDER-BOTTOM: 0.18mm solid; HEIGHT: 20mm">
</SPAN>
</TD>
</TR>
</TABLE>
对四边不可以单边设置吗?把要重合的两边去掉一条!