<table style="width:100%;table-layout:fixed;"> //列宽由表格宽度和列宽度设定

<thead>

<th>用户名</th>

<th>地址</th>

</thead>

<tbody>

<tr>

<td>123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdjfjj123adjdj</td>

<td>杭州市萧山区大风车路街 胡同弄相西山风华薪胡同 里第38座楼8单元别2-808室</td>

</tr>

</tbody>

</table>

<style>

table td{

 white-space:pre-wrap;   // 保留空白符序列，但是正常地进行换行。

 word-wrap: break-word;  //在长单词数字或 URL 地址内部进行换行

}

</style>