fmpq.com
源代码：
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> <script> function displayResult(){ var c=document.getElementById("myCol"); alert("ch属性的水平偏移为: " + c.chOff); } </script> </head> <body> <table border="1"> <colgroup> <col> <col id="myCol" align="char" char="." charoff="2"> </colgroup> <tr> <th>月份</th> <th>存款</th> </tr> <tr> <td>January</td> <td>$100.00</td> </tr> <tr> <td>February</td> <td>$10.00</td> </tr> </table> <br> <button type="button" onclick="displayResult()">字符对齐的水平偏移</button> <p><b>注意:</b>不是所有主流浏览器都支持choff属性的功能。</p> </body> </html>
运行结果