js时间戳、日期相互转换

/* timeStr:时间，格式可为："September 16,2016 14:15:05、 "September 16,2016"、"2016/09/16 14:15:05"、"2016/09/16"、 ‘2014-04-23T18:55:49‘和毫秒 dateSeparator：年、月、日之间的分隔符，默认为"-"， timeSeparator：时、分、秒之间的分隔符，默认为":" */function getFormatDate(timeStr, dateSeparator, timeSeparator) { ???dateSeparator = dateSeparator ? dateSeparator : "-"; ???timeSeparator = timeSeparator ? timeSeparator : ":"; ???var date = new Date(timeStr), ???????????year = date.getFullYear(),// 获取完整的年份(4位,1970) ???????????month = date.getMonth(),// 获取月份(0-11,0代表1月,用的时候记得加上1) ???????????day = date.getDate(),// 获取日(1-31) ???????????hour = date.getHours(),// 获取小时数(0-23) ???????????minute = date.getMinutes(),// 获取分钟数(0-59) ???????????seconds = date.getSeconds(),// 获取秒数(0-59) ???????????Y = year + dateSeparator, ???????????M = ((month + 1) > 9 ? (month + 1) : (‘0‘ + (month + 1))) + dateSeparator, ???????????D = (day > 9 ? day : (‘0‘ + day)) + ‘ ‘, ???????????h = (hour > 9 ? hour : (‘0‘ + hour)) + timeSeparator, ???????????m = (minute > 9 ? minute : (‘0‘ + minute)) + timeSeparator, ???????????s = (seconds > 9 ? seconds : (‘0‘ + seconds)), ???????????formatDate = Y + M + D + h + m + s; ???return formatDate;}