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  • 根据指定日期计算周数

    /// <summary>
            /// 计算当前周
            /// </summary>
            /// <returns></returns>
            public static int GetWeekNoNow(string time)
            {
                string systemStartDate = CCAConfig.SystemStartDate;
                if (string.IsNullOrEmpty(systemStartDate)) throw new Exception("Not config system start date");

                DateTime startDate = DateTime.Parse(systemStartDate);
                int str = new System.Globalization.GregorianCalendar().GetWeekOfYear(startDate, System.Globalization.CalendarWeekRule.FirstDay, DayOfWeek.Monday);

                int strNow = new System.Globalization.GregorianCalendar().GetWeekOfYear(DateTime.Now, System.Globalization.CalendarWeekRule.FirstDay, DayOfWeek.Monday);

                int weekNo = strNow - str + 1; // base on 1

                return weekNo;
            }

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  • 原文地址:https://www.cnblogs.com/menglin/p/3860553.html
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