复制代码 代码如下: //计算天数 protected int getDays(DateTime date1, DateTime date2) {
int days = 0; if (date1.Year == date2.Year) { if (date1.Month < date2.Month) { days = (date2.Day - date1.Day) + (date2.Month - date1.Month) * 30; } if (date2.Month == date1.Month) { days = date2.Day - date1.Day; } } else { DateTime date3 = Convert.ToDateTime(date1.Year + "- 12 - 31"); DateTime date4 = Convert.ToDateTime(date2.Year + "- 01 - 01"); int day1 = 0; if (date1.Month < date3.Month) { day1 = (date3.Day - date1.Day) + (date3.Month - date1.Month) * 30; } if (date3.Month == date1.Month) { day1 = date3.Day - date1.Day; }
int day2 = 0; if (date4.Month < date2.Month) { day2 = (date2.Day - date4.Day) + (date2.Month - date4.Month) * 30; } if (date4.Month == date2.Month) { day2 = date2.Day - date4.Day; }
days = day1 + day2;
} return days; }
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