php基础:用户安全登录
index.php:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>用户安全登录</title>
</head>
<script language="javascript">
function mycheck(){
if(myform.username.value=="")
{alert("用户名称不能为空！！");myform.username.focus();return false;}
if(myform.password.value=="")
{alert("用户密码不能为空！！");myform.password.focus();return false;}
}
</script>
<body>
<form name="myform" method="post" action="checklogin.php">
<table width="350" border="1" align="center" cellpadding="0" cellspacing="0" bordercolor="#4F8C0A">
<tr>
<td><table width="350" height="223" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td height="86" colspan="2"> </td>
</tr>
<tr>
<td width="222" height="33" align="center"><p>用户名：
<input name="username" type="text" id="username" size="18"style="width:140;height:22">
</p></td>
<td width="128" height="102" rowspan="3" valign="top"><p> </p></td>
</tr>
本内容试读结束，登录后可阅读更多
下载后可阅读完整内容，剩余2页未读，立即下载
