我是烟火
2016-05-05 15:27
<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>定时器</title> <script type="text/javascript"> var attime; function clock(){ var time=new Date(); attime=time.getHours()+";"+time.getMinutes()+";"+time.getSeconds(); setInterval(clock,100); document.getElementById("clock").value = attime; } </script> </head> <body> <form> <input type="text" id="clock" size="50" /> </form> </body> </html>
这一节的结果是什么
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>定时器</title>
<script type="text/javascript">
var attime;
function clock(){
var time=new Date();
attime=time.getHours()+":"+time.getMinutes()+":"+time.getSeconds();
document.getElementById("clock").value = attime;
}
setInterval(clock,100);
</script>
</head>
<body>
<form>
<input type="text" id="clock" size="20" onclick="clock()"/>
</form>
</body>
</html>
在clock函数之后应该加上 计时器 setInterval(clock,1000);
要把setInterval(clock,100); 放到 function clock()方法外面!!
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