JS按回车键实现登录的方法 JS按回车键实现登录的方法

JS????杞???瀹??扮?诲????规?

??绋匡?shichen2014 瀛?浣?锛?[ 澧???? ??灏?] 绫诲??锛?杞?杞? 杩?绡???绔?涓昏?浠?缁?浜?JS????杞???瀹??扮?诲????规?,??eb绋?搴?璁捐?′腑??甯稿???ㄧ????宸????ㄤ?琛ㄥ????浜ょ???????锋??寰?濂界???ㄦ?蜂?楠?,??瑕?????????浠ュ????涓? id="cproIframe_u1892994_2" width="580" height="90" src="http://pos.baidu.com/acom?adn=3&at=231&aurl=&cad=1&ccd=24&cec=GBK&cfv=18&ch=0&col=zh-CN&conBW=0&conOP=1&cpa=1&dai=2&dis=0&ltr=https%3A%2F%2Fwww.google.com%2F&ltu=http%3A%2F%2Fwww.jb51.net%2Farticle%2F54308.htm&lu_161=0&lunum=6&n=jb51_cpr&pcs=1903x971&pis=10000x10000&ps=426x486&psr=1920x1080&pss=1903x427&qn=ac40649ad75c81bd&rad=&rsi0=580&rsi1=90&rsi5=4&rss0=%23FFFFFF&rss1=%23F7FCFF&rss2=%230000ff&rss3=%23444444&rss4=%23008000&rss5=&rss6=%23e10900&rss7=&scale=&skin=tabcloud_skin_3&stid=5&td_id=1892994&titFF=%E5%AE%8B%E4%BD%93&titFS=12&titTA=left&tn=text_default_580_90&tpr=1438077106436&ts=1&version=2.0&xuanting=0&dtm=BAIDU_DUP2_SETJSONADSLOT&dc=2&di=u1892994&ti=JS%E6%8C%89%E5%9B%9E%E8%BD%A6%E9%94%AE%E5%AE%9E%E7%8E%B0%E7%99%BB%E5%BD%95%E7%9A%84%E6%96%B9%E6%B3%95_javascript%E6%8A%80%E5%B7%A7_%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6&tt=1438077106412.134.318.329" align="center,center" marginwidth="0" marginheight="0" scrolling="no" frame allowtransparency="true">

????瀹?渚?璁茶堪浜?JS????杞???瀹??扮?诲????规?锛?璇ュ???芥??????甯稿箍娉???瀹??ㄤ环?笺????浜?缁?澶у?朵?澶у?跺????涔??ㄣ???蜂??规?濡?涓?锛?

?规?涓?锛?

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< html xmlns = "http://www.w3.org/1999/xhtml" > < head > < title >Check Score</ title > < script language = "JavaScript" > function keyLogin(){ ? if (event.keyCode==13)? //??杞????????间负13 ??? document.getElementByIdx_x("input1").click(); //璋??ㄧ?诲????????诲?浜?浠?/code> } </ script > </ head > < body onkeydown = "keyLogin();" > < input id = "input1" value = "?诲?" type = "button" onClick = "alert('璋??ㄦ????锛?')" > </ body > </ html >

?规?浜?锛?

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<script> function KeyDown() { ?? if (event.keyCode == 13) ?? { ???? event.returnValue= false ; ???? event.cancel = true ; ???? Form1.btnsubmit.click(); ?? } } </script>

浣跨?ㄦ?规?锛?

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< form name = "Form1" method = "" > ?ㄦ?峰??:< INPUT TYPE = text SIZE = 20 maxlength = 8 onkeydown = KeyDown ()> 瀵???:< INPUT TYPE = password SIZE = 20 maxlength = 8 onkeydown = KeyDown ()> < input type = "submit" name = "btnsubmit" value = "??浜? /> </ form >

?规?涓?锛?

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ss.html椤甸??唬??:

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< 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 class = "font_04" >甯??峰??</ span > ?? < input type = "text" name = "userName" size = "18.5" > ? </ td > ???? </ tr > ???? < tr > ? < td width = "69%" height = "30" >< span class = "font_04" >瀵?????</ span > ?? < input type = "password" name = "pwd" > ? </ td > ???? </ tr > ???? < tr > ? < td width = "31%" height = "30" > ? < a id = "sub" onClick = 'check()' > ? ?婚??</ a ></ td > ???? </ tr > ??? </ table > ?? </ form > </ body > </ html > < script language = "javascript" > function check() { ???? var formname=document.loginForm; ??? if (formname.userName.value == "") { ???? alert("璇疯??ョ?ㄦ?峰??锛?"); ???? formname.userName.focus(); ???? return false; ?? } ?? if (formname.pwd.value == "") { ???? alert("璇疯??ュ????锛?"); ???? formname.pwd.focus(); ???? return false; ?? } ?? formname.submit(); } ?? //??杞??讹?榛?璁ゆ???婚?? ? function on_return(){ ? if(window.event.keyCode == 13){ ?? if (document.all('sub')!=null){ ??? document.all('sub').click(); ??? } ? } ? } </ script >

姝ゅ?娉ㄦ??锛???lt;body>???㈡??浠???浜?onkeydown灞???杩??锋??浠?杈??ュソ??瀹瑰??????灏卞??浠ョ?存?ユ?ц?JS?规?on_return()浜?.??涓?indow.event.keyCode 濡?????13??璇?,琛ㄧず??杞???,??浠ユ??浠??ゆ????浠?????????涓?????杞???,濡???????浠?灏卞?绘??sub'灞?????濡??惧?颁??ц?click?规?灏辨??浜???

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