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jQuery ??? ??? keydown() ? keyup() ???

keydown() ???

?? ? ???

?? ? ??? ????? ? ???? ????. 1. ?? ??????. 2. ?? ?????.

??? ??? ? keydown ???? ?????.

keydown() ???? keydown ???? ?????? keydown ???? ??? ? ??? ??? ?????.

??: ?? ??? ??? ?? ??? ???? ??? ??? ???? ? ???? ?????.

Syntax

$("").keydown()

keydown ???? ??? ???

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>submit</title>
    <script src="http://libs.baidu.com/jquery/1.9.1/jquery.js"></script>
</head>
<body>    
    <p>php 中文網(wǎng)</p>

    <script>
        $('body').keydown(function(){
            $('p').html('php.cn');
        })
    </script>
</body>
</html>

???? ??? "php Chinese website"? "php.cn"

Keyup ???? ?????.

?? ? ???

?? ? ??? ????? ? ???? ???? ????. ?? ?? ?? ?? ?? ??????.

??? ??? ?? ???? ?????. ?? ???? ?? ???? ?????.

keyup() ???? keyup ???? ?????? keyup ???? ??? ? ??? ??? ?????.

??: ?? ??? ??? ?? ??? ???? ??? ??? ???? ? ???? ?????.

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title></title>
    <script src="http://libs.baidu.com/jquery/1.9.1/jquery.js"></script>
</head>
<body>    
    <p>php 中文網(wǎng)</p>

    <script>
        $('body').keyup(function(){
            $('p').html('php.cn');
        })
    </script>
</body>
</html>

?? ?? ?? ???? ???? ?? ??? ???? ???? ????. ???? ??? ???? ?????

.
???? ??
||
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>submit</title> <script src="http://libs.baidu.com/jquery/1.9.1/jquery.js"></script> </head> <body> <p>php 中文網(wǎng)</p> <script> $('body').keydown(function(){ $('p').html('php.cn'); }) </script> </body> </html>