当您运行此代码并点击
input2
时,它将获得焦点,并且 .result
div 将会输出一次 "f2"
。但是当您点击 input1
时,脚本会让 input2
获得焦点,并且 .result
div 将会输出两次 "f2"
,为什么?<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>blank</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function(){
$(".input1").click(function(){$(".input2").focus();});
$(".input2").focus(function(){$(".result").html($(".result").html()+"f2, ");});
});
</script>
</head>
<body>
<p>
<input class="input1" value="click me to set the input2's focus" />
<input class="input2" value="input2" />
<div class="result"></div>
</p>
</body>
</html>
focus
被错误地调用了两次。 - Dominic Goulet