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#lineTd{

background:#FFFFFF url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPjxsaW5lIHgxPSIwIiB5MT0iMCIgeDI9IjEwMCUiIHkyPSIxMDAlIiBzdHJva2U9ImJsYWNrIiBzdHJva2Utd2lkdGg9IjEiLz48L3N2Zz4=) no-repeat 100% center;

}

或者直接寫在單元格style中：

<td style="background:#FFFFFF url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPjxsaW5lIHgxPSIwIiB5MT0iMCIgeDI9IjEwMCUiIHkyPSIxMDAlIiBzdHJva2U9ImJsYWNrIiBzdHJva2Utd2lkdGg9IjEiLz48L3N2Zz4=) no-repeat 100% center;">

其中：

PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPjxsaW5lIHgxPSIwIiB5MT0iMCIgeDI9IjEwMCUiIHkyPSIxMDAlIiBzdHJva2U9ImJsYWNrIiBzdHJva2Utd2lkdGg9IjEiLz48L3N2Zz4=

是base64加密后的代碼，解密后如下：

<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%"><line x1="0" y1="0" x2="100%" y2="100%" stroke="black" stroke-width="1"/></svg>

代碼中的black是顏色，支持16進制顏色編碼，修改顏色后，重新base64加密后替換原來的加密代碼即可。修改完成可以來這里加解密： https://base64.us/

在想要加下斜線的td加入該class樣式即可。

<table style="border-collapse:collapse;" cellspacing="0" cellpadding="0">

    <tbody>

       <tr>

           <td id="lineTd">

              <span style="float:left;margin-top:20px;">項目</span>

              <span style="float:right;margin-top:-10px;">日期</span>

           </td>

           <td>2010-10-15</td>

       </tr>

       <tr>

           <td>采購</td>

           <td>9000元</td>

       </tr>

    </tbody>

</table>