html table用法
<div align=left> //左对齐
<table width="1000" border="0" cellspacing="1" cellpadding="1" height="646"> //表单设计
<tr valign=> //行
<td width="250"> //列
<form name="form1" method="post" action="user_login.jsp">
<p align="center" class="style6">请登录：</p>
<table width="100%" border="0" cellspacing="1" cellpadding="1">
<tr>
<td align="right">
用户名：
</td>
<td>
<input type="text" name="username" size="10" maxlength="25">
</td>
</tr>
<tr>
<td align="right">密 码：</td>
<td><input type="password" name="upasswd" size="10" maxlength="20">
</td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" name="Submit" value="登录" >
<input type="reset" name="Submit2" value="取消">
</td>
</tr>
<tr>
<td colspan="2"><div align="center"><br></br>如果您还没有注册，请<a href="user_reg.jsp?ulevel=1">注册</a>。</div></td>
</tr>
</table>
</form>
</td>
<td width="800"><div >
<p class="style7"><br>
<span class="style8">系统简介</span></p><p class="style7"><span class="style8">
</span>
</p>
</div>
<p> </p>
</td>
</tr>
</table>
</div>
