表格外边框实线，内部为虚线

/*-----------------------html代码---------------------------------*/
<table id="table1">
<tr id="tr1">
<td id="title"> <input id="checkbox" type="checkbox" width="10px;"></td>
<td id="title" style="width:50px;">序号</td>
<td id="title">教学计划名称</td>
<td id="title">招生批次</td>
<td id="title">层次</td>
<td id="title">专业</td>
<td id="title">备注</td>
<td id="title">操作</td>
  </tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">1</td>
<td id="left">1303保险事务专业(专科)教学计划</td>
<td id="right">1303</td>
<td id="left">专科</td>
<td id="left">保险实务</td>
<td id="left">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
  </tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr id="tr2">
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">2</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
<tr>
<td id="title" width="30px"><input type="checkbox" /></td>
<td id="title" style="width:50px;">3</td>
<td id="title">2013计算机专业(本科)教学计划</td>
<td id="title">2013</td>
<td id="title">本科</td>
<td id="title">软件</td>
<td id="title">今儿天儿真好啊</td>
<td id="title"><input type="button" value="删除" />
<input type="button" value="复制" /></td>
</tr>
  </table>

/*----------------css-------------------------*/
#table1{width:100%;border-collapse: collapse;border-spacing: 0;float:left; margin-left:23px; margin-bottom:15px; border:1px solid #666666; bordercolor:#858587}

#title{ text-align:center; border:1px dotted #666666;}