456.jsp

来自「简单的登录页面有增删改查功能」· JSP 代码 · 共 31 行

JSP
31
字号
<%@page contentType="text/html;charset=GB2312"%>
<html>       
    <head>       
    <meta http-equiv="Content-Type" content="text/html;charset=gb2312">       
    <title> 无标题文档 </title>       
    </head>       
    <script language="javascript">       
    <!--       
    function isfull(){       
        
            if(document.dd.username.value==" "){       
            alert( "用户名不能为空 ");       
            document.dd.username.focus();       
            return false;       
        }      
        if(document.dd.password.value==" "){       
            alert("密码不能为空");       
            document.dd.password.focus();       
            return false;       
    }       
    return  true;
   }       
    </script>       
    <body>       
    <form name="dd" method="post" action=" " onSubmit="return isfull(); ">       
            <input type="text" name="username">       
            <input type="text" name="password">       
            <input type="submit" name="Submit" value="提交">       
    </form>       
    </body>       
    </html> 

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