<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>定時器</title><script type="text/javascript">??? function clock(){ ? ??? ? for( var i=5 ; i<=1 ; i--)? ? {?? ? ? document.getElementById("clock").value = i;} ??? ? }? ? ? ?? }? setInterval(clock,1000);</script></head><body><form><input type="text" id="clock" size="50" ?/></form></body></html>
求助大神，這段代碼錯在那里？
健C
2016-07-16 19:40:26
