下面是看视频时做的练习,在这里保存一下
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>判断闰年</title>
<script language="javascript" type="text/javascript"> function aaa(){ var x=document.form1.nian.value; if(((x%4==0) && (x%100!=0)) || ((x%100==0) && (x%400==0))) { alert(x + "年是闰年!"); } else{ alert(x + "年不是闰年!"); } } </script> </head> <body>
<form id="form1" name="form1" method="post" action""> 判断闰年: <input name="nian" type="text" id="nian" size="4" maxlength="4"/> <input type="button" name="button" value="是否是闰年?" οnclick="javascript:aaa()"/> </form> </body> </html>
Javascript编写判断是否闰年的例子
最新推荐文章于 2022-09-13 10:16:54 发布