js 时间操作

//返回yyyy-mm-dd格式function getLocalTime(addNum) { ???var today, ms, thatDay, y, m, d, endDate; ???today = new Date().getTime(); ???ms = today + addNum * 24 * 60 * 60 * 1000; ???thatDay = new Date(ms); ???y = thatDay.getFullYear(); ???m = thatDay.getMonth() + 1; ???d = thatDay.getDate(); ???endDate = y + "-" + m + "-" + d; ???return endDate}

//输入yyyy-mm-ddfunction getWeekday(sDate) { ???var dt = new Date(sDate.replace(/-/g, ‘/‘)); ???var a = [‘星期日‘, ‘星期一‘, ‘星期二‘, ‘星期三‘, ‘星期四‘, ‘星期五‘, ‘星期六‘]; ???return a[dt.getDay()];}