php 学习记录

cmn.php

<script type="text/javascript">

function validate(form)

{

if(form.uname.value == "")

{

alert("用户名不能为空");

return false;

}

else

{

if(/[^a-zA-Z0-9-_]/.test(form.uname.value))

{

alert("uname could only be a-z, A-Z, 0-9, - and _");

return false;

}

return ture;

}

}

</script>

<table class="signup" cellpadding="2" cellspacing="5" bgcolor="#eeeeee">

<th colspan="2" align="center">注册表单</th>

<form action="cmn.php" method="post" onsubmit="return validate(this)">

<tr>

<td>用户名</td>

<td><input type="text" name="uname" /></td>

</tr>

<tr>

<td>密码</td>

<td><input type="text" name="upwd" maxlength="20"/></td>

</tr>

<tr><td colspan="2" align="center"><input type="submit" value="注册" /></td></tr>

</form>

</table>

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