jarvis
4 years ago
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/** |
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* 日期范围工具类 |
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*/ |
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var dateRangeUtil = (function() { |
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/*** |
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* 获得当前时间 |
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*/ |
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this.getCurrentDate = function() { |
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return new Date(); |
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}; |
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/*** |
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* 获得本周起止时间 |
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*/ |
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this.getCurrentWeek = function() { |
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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 = this.getCurrentDate(); |
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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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//一天的毫秒数
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var millisecond = 1000 * 60 * 60 * 24; |
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//减去的天数
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var minusDay = week != 0 ? week - 1 : 6; |
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//alert(minusDay);
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//本周 周一
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var monday = new Date(currentDate.getTime() - minusDay * millisecond); |
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//本周 周日
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var sunday = new Date(monday.getTime() + 6 * millisecond); |
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//添加本周时间
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startStop.push(monday.format('yyyy-MM-dd')); //本周起始时间
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//添加本周最后一天时间
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startStop.push(sunday.format('yyyy-MM-dd')); //本周终止时间
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//返回
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return startStop; |
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}; |
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/*** |
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* 获得本月的起止时间 |
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*/ |
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this.getCurrentMonth = function() { |
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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 = this.getCurrentDate(); |
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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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//求出本月第一天
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var firstDay = new Date(currentYear, currentMonth, 1); |
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//当为12月的时候年份需要加1
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//月份需要更新为0 也就是下一年的第一个月
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if (currentMonth == 11) { |
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currentYear++; |
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currentMonth = 0; //就为
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} else { |
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//否则只是月份增加,以便求的下一月的第一天
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currentMonth++; |
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} |
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//一天的毫秒数
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var millisecond = 1000 * 60 * 60 * 24; |
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//下月的第一天
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var nextMonthDayOne = new Date(currentYear, currentMonth, 1); |
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//求出上月的最后一天
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var lastDay = new Date(nextMonthDayOne.getTime() - millisecond); |
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//添加至数组中返回
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startStop.push(firstDay.format('yyyy-MM-dd')); |
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startStop.push(lastDay.format('yyyy-MM-dd')); |
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//返回
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return startStop; |
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}; |
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/** |
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* 得到本季度开始的月份 |
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* @param month 需要计算的月份 |
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***/ |
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this.getQuarterSeasonStartMonth = function(month) { |
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var quarterMonthStart = 0; |
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var spring = 0; //春
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var summer = 3; //夏
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var fall = 6; //秋
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var winter = 9; //冬
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//月份从0-11
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if (month < 3) { |
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return spring; |
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} |
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if (month < 6) { |
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return summer; |
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} |
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if (month < 9) { |
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return fall; |
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} |
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return winter; |
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}; |
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/** |
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* 获得该月的天数 |
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* @param year年份 |
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* @param month月份 |
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* */ |
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this.getMonthDays = function(year, month) { |
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//本月第一天 1-31
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var relativeDate = new Date(year, month, 1); |
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//获得当前月份0-11
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var relativeMonth = relativeDate.getMonth(); |
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//获得当前年份4位年
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var relativeYear = relativeDate.getFullYear(); |
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//当为12月的时候年份需要加1
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//月份需要更新为0 也就是下一年的第一个月
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if (relativeMonth == 11) { |
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relativeYear++; |
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relativeMonth = 0; |
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} else { |
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//否则只是月份增加,以便求的下一月的第一天
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relativeMonth++; |
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} |
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//一天的毫秒数
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var millisecond = 1000 * 60 * 60 * 24; |
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//下月的第一天
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var nextMonthDayOne = new Date(relativeYear, relativeMonth, 1); |
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//返回得到上月的最后一天,也就是本月总天数
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return new Date(nextMonthDayOne.getTime() - millisecond).getDate(); |
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}; |
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/** |
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* 获得本季度的起止日期 |
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*/ |
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this.getCurrentSeason = function() { |
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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 = this.getCurrentDate(); |
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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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//获得本季度开始月份
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var quarterSeasonStartMonth = this.getQuarterSeasonStartMonth(currentMonth); |
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//获得本季度结束月份
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var quarterSeasonEndMonth = quarterSeasonStartMonth + 2; |
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//获得本季度开始的日期
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var quarterSeasonStartDate = new Date(currentYear, quarterSeasonStartMonth, 1); |
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//获得本季度结束的日期
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var quarterSeasonEndDate = new Date(currentYear, quarterSeasonEndMonth, this.getMonthDays(currentYear, quarterSeasonEndMonth)); |
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//加入数组返回
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startStop.push(quarterSeasonStartDate.format('yyyy-MM-dd')); |
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startStop.push(quarterSeasonEndDate.format('yyyy-MM-dd')); |
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//返回
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return startStop; |
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}; |
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/*** |
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* 得到本年的起止日期 |
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* |
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*/ |
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this.getCurrentYear = function() { |
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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 = this.getCurrentDate(); |
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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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//本年第一天
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var currentYearFirstDate = new Date(currentYear, 0, 1); |
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//本年最后一天
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var currentYearLastDate = new Date(currentYear, 11, 31); |
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//添加至数组
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startStop.push(currentYearFirstDate.format('yyyy-MM-dd')); |
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startStop.push(currentYearLastDate.format('yyyy-MM-dd')); |
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//返回
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return startStop; |
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}; |
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/** |
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* 返回上一个月的第一天Date类型 |
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* @param year 年 |
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* @param month 月 |
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**/ |
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this.getPriorMonthFirstDay = function(year, month) { |
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//年份为0代表,是本年的第一月,所以不能减
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if (month == 0) { |
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month = 11; //月份为上年的最后月份
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year--; //年份减1
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return new Date(year, month, 1); |
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} |
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//否则,只减去月份
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month--; |
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return new Date(year, month, 1); |
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}; |
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/** |
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* 获得上一月的起止日期 |
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* ***/ |
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this.getPreviousMonth = function() { |
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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 = this.getCurrentDate(); |
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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 priorMonthFirstDay = this.getPriorMonthFirstDay(currentYear, currentMonth); |
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//获得上一月的最后一天
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var priorMonthLastDay = new Date( |
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priorMonthFirstDay.getFullYear(), |
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priorMonthFirstDay.getMonth(), |
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this.getMonthDays(priorMonthFirstDay.getFullYear(), priorMonthFirstDay.getMonth()), |
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); |
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//添加至数组
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startStop.push(priorMonthFirstDay.format('yyyy-MM-dd')); |
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startStop.push(priorMonthLastDay.format('yyyy-MM-dd')); |
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//返回
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return startStop; |
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}; |
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/** |
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* 获得上一周的起止日期 |
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* **/ |
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this.getPreviousWeek = function() { |
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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 = this.getCurrentDate(); |
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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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//一天的毫秒数
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var millisecond = 1000 * 60 * 60 * 24; |
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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 currentWeekDayOne = new Date(currentDate.getTime() - millisecond * minusDay); |
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//上周最后一天即本周开始的前一天
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var priorWeekLastDay = new Date(currentWeekDayOne.getTime() - millisecond); |
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//上周的第一天
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var priorWeekFirstDay = new Date(priorWeekLastDay.getTime() - millisecond * 6); |
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//添加至数组
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startStop.push(priorWeekFirstDay.format('yyyy-MM-dd')); |
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startStop.push(priorWeekLastDay.format('yyyy-MM-dd')); |
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return startStop; |
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}; |
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/** |
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* 得到上季度的起始日期 |
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* year 这个年应该是运算后得到的当前本季度的年份 |
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* month 这个应该是运算后得到的当前季度的开始月份 |
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* */ |
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this.getPriorSeasonFirstDay = function(year, month) { |
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var quarterMonthStart = 0; |
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var spring = 0; //春
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var summer = 3; //夏
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var fall = 6; //秋
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var winter = 9; //冬
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//月份从0-11
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switch ( |
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month //季度的其实月份
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) { |
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case spring: |
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//如果是第一季度则应该到去年的冬季
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year--; |
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month = winter; |
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break; |
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case summer: |
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month = spring; |
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break; |
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case fall: |
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month = summer; |
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break; |
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case winter: |
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month = fall; |
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break; |
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} |
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return new Date(year, month, 1); |
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}; |
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/** |
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* 得到上季度的起止日期 |
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* **/ |
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this.getPreviousSeason = function() { |
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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 = this.getCurrentDate(); |
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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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//上季度的第一天
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var priorSeasonFirstDay = this.getPriorSeasonFirstDay(currentYear, currentMonth); |
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//上季度的最后一天
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var priorSeasonLastDay = new Date( |
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priorSeasonFirstDay.getFullYear(), |
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priorSeasonFirstDay.getMonth() + 2, |
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this.getMonthDays(priorSeasonFirstDay.getFullYear(), priorSeasonFirstDay.getMonth() + 2), |
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); |
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//添加至数组
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startStop.push(priorSeasonFirstDay.format('yyyy-MM-dd')); |
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startStop.push(priorSeasonLastDay.format('yyyy-MM-dd')); |
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return startStop; |
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}; |
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/** |
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* 得到去年的起止日期 |
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* **/ |
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this.getPreviousYear = function() { |
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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 = this.getCurrentDate(); |
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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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currentYear--; |
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var priorYearFirstDay = new Date(currentYear, 0, 1); |
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var priorYearLastDay = new Date(currentYear, 11, 1); |
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//添加至数组
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startStop.push(priorYearFirstDay.format('yyyy-MM-dd')); |
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startStop.push(priorYearLastDay.format('yyyy-MM-dd')); |
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return startStop; |
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}; |
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return this; |
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})(); |
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Date.prototype.format = function(fmt) { |
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var o = { |
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'M+': this.getMonth() + 1, //月份
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'd+': this.getDate(), //日
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'h+': this.getHours(), //小时
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'm+': this.getMinutes(), //分
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's+': this.getSeconds(), //秒
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'q+': Math.floor((this.getMonth() + 3) / 3), //季度
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S: this.getMilliseconds(), //毫秒
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}; |
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if (/(y+)/.test(fmt)) { |
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fmt = fmt.replace(RegExp.$1, (this.getFullYear() + '').substr(4 - RegExp.$1.length)); |
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} |
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for (var k in o) { |
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if (new RegExp('(' + k + ')').test(fmt)) { |
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fmt = fmt.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ('00' + o[k]).substr(('' + o[k]).length)); |
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} |
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} |
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return fmt; |
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}; |
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