| 检测最近两个星期天的日期,当然也可以是其它星期 |
| 日期:2004-05-24 人气: 【字体:大 中 小】【收藏此文】 |
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<!-- 网页特效代码由[中国WEB开发者网络:http://www.ChinaWebDev.com]提供! --> <!-- 要实现此效果需要 1 个步骤: -->
<!-- 第 1 步: --> <!-- 把下面的代码加到<BODY></BODY>区域中: -->
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
function isLeapYear () {
year = new Date().getYear();
year += (year < 2000 ? 1900 : 0);
return (year % 4==0 && year % 100!=0 || year % 400==0);
}
function formatDate(date) {
mymonth = date.getMonth()+1;
myweekday = date.getDate();
return (mymonth + "/" + myweekday);
}
function printWeek() {
beginday = 0; // first day of each week
// 0 = sunday, 1= monday .... 6 = saturday
var dayarray = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
dayarray[1] = (isLeapYear()) ? 29 : 28;
dayfactor = 86400000; // one day equals 86400000 milliseconds
weekstart = new Date();
weekend = new Date();
while (weekstart.getDay() != beginday) {
weekstart.setTime(weekstart.getTime() - dayfactor);
}
weekend.setTime(weekend.getTime() + 6*dayfactor);
document.write("最近两个星期天为: " + formatDate(weekstart) + " - " + formatDate(weekend));
}
// End -->
</script>
<script>
printWeek();
</script>
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