【转】- 按回车键实现登录-- JS实现第一种方法：??????? html xmlnshttp://www.w3.org/1999/xhtml head
【转】- 按回车键实现登录-- JS实现
第一种方法：
??????? <html xmlns="http://www.w3.org/1999/xhtml" >
<head>
? <title>Check Score</title>
<script language="JavaScript">
function keyLogin(){
? if (event.keyCode==13)?? //回车键的键值为13
???? document.getElementByIdx_x("input1").click();? //调用登录按钮的登录事件
}
</script>
?</head>
<body onkeydown="keyLogin();">
<input id="input1" value="登录" type="button" onClick="alert('调用成功！')">
</body>
?</body>
</html>
第二种方法：
???
<script>
function KeyDown()
{
??? if (event.keyCode == 13)
??? {
??????? event.returnValue=false;
??????? event.cancel = true;
??????? Form1.btnsubmit.click();
??? }
}
</script>
使用方法：
<form name="Form1" method="">
用户名:<INPUT TYPE=text SIZE=20 maxlength = 8 onkeydown=KeyDown()>
密码:<INPUT TYPE=password SIZE=20 maxlength = 8 onkeydown=KeyDown()>
<input type="submit" name="btnsubmit" value="提交" />
</form>?-----------------------------------------------------http://blog.163.com/yuxiangtong0524@126/blog/static/8008616320103152509935/?任何一个网站页面都有登陆界面,很多时候在输入好用户名和密码后,还要用鼠标去点一个类似于登陆什么的按钮或者链接.这样你才能进网站做你喜欢做的事情.有时候我就在想是不是能在输入好我该输入的东西后,直接敲回车就执行登陆功能呢?我可不想老是要去点一个什么东东才能进网站.不错,这个东西也是一个JS方法就搞定了的.看我下面的html文件.ss.html:<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" href="css/text.css" type="text/css">
</head><body bgcolor="#FFFFFF" text="#000000" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0" onkeydown="on_return();">
?? <form name ="loginForm" method="post" action="fuck.html">??????????????
????????????????????????????? <table width="100%" border="0" cellspacing="0" cellpadding="0">
?????????????????????????????
??????????????????????????????????????? <tr>
?????????????????????????????????????????
??????????????????????????????????????? <td width="69%" height="30"><span name="userName"? size="18.5">
??????????????????????????????????????? </td>
????????????????????????????????????? </tr>
????????????????????????????????????? <tr>
??????????????????????????????????????? <td width="69%" height="30"><span name="pwd" >
??????????????????????????????????????? </td>
????????????????????????????????????? </tr>
?????????? <tr>
??????????????????????????????????????? <td? width="31%" height="30">??????????????????????????????????????? <a id="sub"? onClick='check()' >??????????????????????????????????????? 登陆</a></td>
????????????????????????????????????? </tr>
????????????????????????????? </table>
??????????? </form>
</body>
</html>
<script language="javascript">
function check() {
?????? var formname=document.loginForm;
????? if (formname.userName.value == "") {
??????? alert("请输入用户名！");
??????? formname.userName.focus();
??????? return false;
??? }
??? if (formname.pwd.value == "") {
??????? alert("请输入密码！");
??????? formname.pwd.focus();
??????? return false;
??? }
??? formname.submit();
}?? //回车时，默认是登陆
?function on_return(){
??if(window.event.keyCode == 13){
???if (document.all('sub')!=null){
????? document.all('sub').click();
????? }
??}
?}
</script>?仔细看红字在<body>里面我们加了onkeydown属性,这样我们输入好内容后按键就可以直接执行JS方法on_return()了.因为window.event.keyCode 如果是13的话,表示回车键,所以我们判断我们按的键是不是回车键,如果是我们就去找'sub'属性,假如找到了执行click方法就是了.很简单吧,只需要加个JS方法,页面上有些细微改动就OK了.所以只是个小玩意,博君一笑尔.??
