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+/**
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+ * 获取本周、本季度、本月、上月的开始日期、结束日期
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+ */
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+var now = new Date(); //当前日期
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+var nowDayOfWeek = now.getDay(); //今天本周的第几天
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+var nowDay = now.getDate(); //当前日
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+var nowMonth = now.getMonth(); //当前月
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+var nowYear = now.getYear(); //当前年
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+nowYear += (nowYear < 2000) ? 1900 : 0; //
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+var lastMonthDate = new Date(); //上月日期
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+lastMonthDate.setDate(1);
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+lastMonthDate.setMonth(lastMonthDate.getMonth() - 1);
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+// var lastYear = lastMonthDate.getYear();
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+var lastMonth = lastMonthDate.getMonth();
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+//格式化日期：yyyy-MM-dd
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+function formatDate(date) {
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+ var myyear = date.getFullYear();
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+ var mymonth = date.getMonth() + 1;
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+ var myweekday = date.getDate();
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+ if (mymonth < 10) {
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+ mymonth = "0" + mymonth;
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+ }
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+ if (myweekday < 10) {
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+ myweekday = "0" + myweekday;
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+ }
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+ return (myyear + "-" + mymonth + "-" + myweekday);
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+}
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+//获得某月的天数
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+function getMonthDays(myMonth) {
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+ var monthStartDate = new Date(nowYear, myMonth, 1);
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+ var monthEndDate = new Date(nowYear, myMonth + 1, 1);
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+ var days = (monthEndDate - monthStartDate) / (1000 * 60 * 60 * 24);
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+ return days;
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+}
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+//获得本季度的开始月份
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+function getQuarterStartMonth() {
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+ var quarterStartMonth = 0;
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+ if (nowMonth < 3) {
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+ quarterStartMonth = 0;
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+ }
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+ if (2 < nowMonth && nowMonth < 6) {
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+ quarterStartMonth = 3;
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+ }
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+ if (5 < nowMonth && nowMonth < 9) {
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+ quarterStartMonth = 6;
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+ }
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+ if (nowMonth > 8) {
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+ quarterStartMonth = 9;
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+ }
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+ return quarterStartMonth;
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+}
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+//获得本周的开始日期
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+function getWeekStartDate() {
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+ var weekStartDate = new Date(nowYear, nowMonth, nowDay - nowDayOfWeek + 1);
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+ return formatDate(weekStartDate) + ' 00:00:00';
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+}
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+//获得本周的结束日期
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+function getWeekEndDate() {
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+ var weekEndDate = new Date(nowYear, nowMonth, nowDay + (7 - nowDayOfWeek));
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+ return formatDate(weekEndDate) + ' 23:59:59';
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+}
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+//获得上周的开始日期
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+function getLastWeekStartDate() {
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+ var weekStartDate = new Date(nowYear, nowMonth, nowDay - nowDayOfWeek - 7);
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+ return formatDate(weekStartDate) + ' 00:00:00';
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+}
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+//获得上周的结束日期
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+function getLastWeekEndDate() {
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+ var weekEndDate = new Date(nowYear, nowMonth, nowDay - nowDayOfWeek - 1);
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+ return formatDate(weekEndDate) + ' 23:59:59';
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+}
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+//获得本月的开始日期
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+function getMonthStartDate() {
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+ var monthStartDate = new Date(nowYear, nowMonth, 1);
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+ return formatDate(monthStartDate) + ' 00:00:00';
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+}
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+//获得本月的结束日期
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+function getMonthEndDate() {
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+ var monthEndDate = new Date(nowYear, nowMonth, getMonthDays(nowMonth));
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+ return formatDate(monthEndDate) + ' 23:59:59';
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+}
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+//获得上月开始时间
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+function getLastMonthStartDate() {
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+ var lastMonthStartDate = new Date(nowYear, lastMonth, 1);
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+ return formatDate(lastMonthStartDate) + ' 00:00:00';
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+}
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+//获得上月结束时间
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+function getLastMonthEndDate() {
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+ var lastMonthEndDate = new Date(nowYear, lastMonth, getMonthDays(lastMonth));
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+ return formatDate(lastMonthEndDate) + ' 23:59:59';
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+}
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+//获得本季度的开始日期
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+function getQuarterStartDate() {
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+ var quarterStartDate = new Date(nowYear, getQuarterStartMonth(), 1);
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+ return formatDate(quarterStartDate) + ' 00:00:00';
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+}
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+//或的本季度的结束日期
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+function getQuarterEndDate() {
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+ var quarterEndMonth = getQuarterStartMonth() + 2;
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+ var quarterStartDate = new Date(nowYear, quarterEndMonth,
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+ getMonthDays(quarterEndMonth));
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+ return formatDate(quarterStartDate) + ' 23:59:59';
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+}
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+//获得前半年开始时间
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+function getHalfYearStartDate() {
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+ var firstHalfYearStartDate = new Date(nowYear, 1 - 1, 1);
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+ return formatDate(firstHalfYearStartDate) + ' 00:00:00';
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+}
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+//获前半年结束时间
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+function getHalfYearEndDate() {
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+ var firstHalfYearEndDate = new Date(nowYear, 6 - 1, 30);
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+ return formatDate(firstHalfYearEndDate) + ' 23:59:59';
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+}
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+//获得前今年开始时间
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+function getThisYearStartDate() {
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+ var firstThisYearStartDate = new Date(nowYear, 1 - 1, 1);
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+ return formatDate(firstThisYearStartDate) + ' 00:00:00';
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+}
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+//获前今年结束时间
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+function getThisYearEndDate() {
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+ var firstThisYearEndDate = new Date(nowYear, 12 - 1, 31);
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+ return formatDate(firstThisYearEndDate) + ' 23:59:59';
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+}
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+//获当前起前一个月时间
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+function getThisDateBeforMonth() {
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+
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+ var lastMonthToday = new Date(
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+ new Date().getTime() - 30 * 24 * 60 * 60 * 1000
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+ );
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+ var lastMonthYear = lastMonthToday.getFullYear();
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+ let month = lastMonthToday.getMonth() + 1
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+ var lastMonth = month < 10 ? '0' + month : month;
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+ var lastMonthDay =
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+ lastMonthToday.getDate() < 10 ?
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+ '0' + lastMonthToday.getDate() :
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+ lastMonthToday.getDate();
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+ var lastMonthKsrq = lastMonthYear + "-" + lastMonth + "-" + lastMonthDay + " 00:00:00";
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+ return lastMonthKsrq
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+}
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+//获当前起后一个月时间
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+function getThisDateNextMonth() {
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+ var nextMonthToday = new Date(
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+ new Date().getTime() + 30 * 24 * 60 * 60 * 1000
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+ );
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+ var nextMonthYear = nextMonthToday.getFullYear();
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+ let month = nextMonthToday.getMonth() + 1
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+ var nextMonth = month < 10 ? '0' + month : month;
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+ var nextMonthDay =
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+ nextMonthToday.getDate < 10 ?
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+ "0" + nextMonthToday.getDate :
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+ nextMonthToday.getDate();
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+ var nextMonthJsrq = nextMonthYear + "-" + nextMonth + "-" + nextMonthDay;
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+ return nextMonthJsrq
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+}
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+
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+// 中国标准时间转年月日时分秒
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+function timestampToTime(timestamp) {
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+ // var chinaStandard=Mon Jul 19 2021 11:11:55 GMT+0800 (中国标准时间);
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+ var date = new Date(timestamp);
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+ var y = date.getFullYear();
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+ var m = date.getMonth() + 1;
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+ m = m < 10 ? ('0' + m) : m;
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+ var d = date.getDate();
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+ d = d < 10 ? ('0' + d) : d;
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+ var h = date.getHours();
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+ h = h < 10 ? ('0' + h) : h;
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+ var minute = date.getMinutes();
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+ minute = minute < 10 ? ('0' + minute) : minute;
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+ var second = date.getSeconds();
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+ second = second < 10 ? ('0' + second) : second;
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+ let time = y + '-' + m + '-' + d + ' ' + h + ':' + minute + ':' + second;
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+ return time
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+}
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+
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+//获取当前日期yy-mm-dd
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+//date 为时间对象
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+function getDateStr3(date) {
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+ var year = "";
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+ var month = "";
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+ var day = "";
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+ var now = date;
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+ year = "" + now.getFullYear();
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+ if ((now.getMonth() + 1) < 10) {
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+ month = "0" + (now.getMonth() + 1);
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+ } else {
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+ month = "" + (now.getMonth() + 1);
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+ }
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+ if ((now.getDate()) < 10) {
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+ day = "0" + (now.getDate());
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+ } else {
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+ day = "" + (now.getDate());
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+ }
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+ return year + "-" + month + "-" + day;
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+}
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+/**
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+ * 获得相对当前周AddWeekCount个周的起止日期
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+ * AddWeekCount为0代表当前周 为-1代表上一个周 为1代表下一个周以此类推
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+ * **/
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+function getWeekStartAndEnd(AddWeekCount) {
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+ //起止日期数组
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+ var startStop = new Array();
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+ //一天的毫秒数
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+ var millisecond = 1000 * 60 * 60 * 24;
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+ //获取当前时间
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+ var currentDate = new Date();
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+ //相对于当前日期AddWeekCount个周的日期
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+ currentDate = new Date(currentDate.getTime() + (millisecond * 7 * AddWeekCount));
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+ //返回date是一周中的某一天
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+ var week = currentDate.getDay();
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+ //返回date是一个月中的某一天
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+ // var month = currentDate.getDate();
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+ //减去的天数
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+ var minusDay = week != 0 ? week - 1 : 6;
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+ //获得当前周的第一天
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+ var currentWeekFirstDay = new Date(currentDate.getTime() - (millisecond * minusDay));
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+ //获得当前周的最后一天
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+ var currentWeekLastDay = new Date(currentWeekFirstDay.getTime() + (millisecond * 6));
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+ //添加至数组
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+ startStop.push(getDateStr3(currentWeekFirstDay));
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+ startStop.push(getDateStr3(currentWeekLastDay));
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+
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+ return startStop;
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+}
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+/**
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+ * 获得相对当月AddMonthCount个月的起止日期
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+ * AddMonthCount为0 代表当月 为-1代表上一个月 为1代表下一个月 以此类推
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+ * ***/
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+function getMonthStartAndEnd(AddMonthCount) {
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+ //起止日期数组
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+ var startStop = new Array();
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+ //获取当前时间
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+ var currentDate = new Date();
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+ var month = currentDate.getMonth() + AddMonthCount;
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+ if (month < 0) {
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+ var n = parseInt((-month) / 12);
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+ month += n * 12;
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+ currentDate.setFullYear(currentDate.getFullYear() - n);
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+ }
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+ currentDate = new Date(currentDate.setMonth(month));
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+ //获得当前月份0-11
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+ var currentMonth = currentDate.getMonth();
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+ //获得当前年份4位年
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+ var currentYear = currentDate.getFullYear();
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+ //获得上一个月的第一天
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+ var currentMonthFirstDay = new Date(currentYear, currentMonth, 1);
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+ //获得上一月的最后一天
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+ var currentMonthLastDay = new Date(currentYear, currentMonth + 1, 0);
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+ //添加至数组
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+ startStop.push(getDateStr3(currentMonthFirstDay));
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+ startStop.push(getDateStr3(currentMonthLastDay));
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+ //返回
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+ return startStop;
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+}
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+
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+/**
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+ * 获得当前年月日
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+ * ***/
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+function YearMonthDate() {
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+ var date = new Date();
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+ var mon = date.getMonth() + 1;
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+ var day = date.getDate();
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+ var currDate = date.getFullYear() + "-" + (mon < 10 ? "0" + mon : mon) + "-" + (day < 10 ? "0" + day : day) + " 23:59:59";
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+ return currDate
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+}
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+
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+/**
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+ * 获得当前年月日SFM
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+ * ***/
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+ function YearMonthDateSFN() {
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+ var date = new Date();
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+ var mon = date.getMonth() + 1;
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+ var day = date.getDate();
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+
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+ var h = date.getHours();
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+ h = h < 10 ? ('0' + h) : h;
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+ var minute = date.getMinutes();
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+ minute = minute < 10 ? ('0' + minute) : minute;
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+ var second = date.getSeconds();
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+ second = second < 10 ? ('0' + second) : second;
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+
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+ var currDate = date.getFullYear() + "-" + (mon < 10 ? "0" + mon : mon) + "-" + (day < 10 ? "0" + day : day) + " " + h + ":" + minute + ":" + second;
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+ return currDate
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+}
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+/**
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+ * 年月日时分秒转时间戳（）
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+ * getTimeFormat('2022-02-02 02:22:22');
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+ * ***/
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+function getTimeFormat(timeS){
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+ let time = (new Date(timeS).getTime()) / 1000; //除1000 是变成秒级的时间戳 不除就是毫秒级
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+ return time;
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+}
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+
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+export {
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+ getWeekStartAndEnd,
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+ getMonthStartAndEnd,
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+ getHalfYearStartDate,
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+ getHalfYearEndDate,
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+ getThisYearStartDate,
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+ getThisYearEndDate,
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+ getWeekStartDate,
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+ getWeekEndDate,
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+ getLastWeekStartDate,
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+ getLastWeekEndDate,
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+ getMonthStartDate,
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+ getMonthEndDate,
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+ getLastMonthStartDate,
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+ getLastMonthEndDate,
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+ getQuarterStartDate,
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+ getQuarterEndDate,
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+ timestampToTime,
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+ getThisDateBeforMonth,
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+ getThisDateNextMonth,
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+ YearMonthDate,
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+ YearMonthDateSFN,
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+ getTimeFormat,
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+ getDateStr3
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+}
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wangtao