C#中时间的减法求出时间差
2021-03-05 04:26
标签：mic 技术 alt http sub static mes form private C#中时间的减法求出时间差 标签：mic 技术 alt http sub static mes form private 原文地址：https://www.cnblogs.com/fanjianzhi/p/12912658.html
1 //1.使用算出该月多少天，年+月+加上多少天即可,举例取今天最后一天
2 private static void GetLastDateForMonth(DateTime dtStart,out DateTime dtEnd)
3 {
4 int dtYear, dtMonth;
5 //dtStart = DateTime.Now;
6 dtYear = dtStart.Year;
7 dtMonth = dtStart.Month;
8 int MonthCount = DateTime.DaysInMonth(dtYear, dtMonth);
9 dtEnd = Convert.ToDateTime(dtYear.ToString() + "-" + dtMonth.ToString() + "-" + MonthCount);
10
11 }
1 private static void GetLastDateForMonth(DateTime dtStart, out DateTime dtEnd)
2 {
3 int dtYear, dtMonth;
4 DateTime dtStart2= dtStart.AddMonths(1);
5 dtYear = dtStart2.Year;
6 dtMonth = dtStart2.Month;
7 dtEnd = Convert.ToDateTime(dtYear.ToString() + "-" + dtMonth.ToString() + "-" + "1").AddDays(-1);
8
9 }
1 DateTime dt1 = new DateTime(2021, 5, 18, 14, 23,22);
2 DateTime dt2 = DateTime.Now;
3 TimeSpan ts = dt1.Subtract(dt2);
4 Console.WriteLine($"相差{ts.Days}天{ts.Hours}小时{ts.Minutes}分钟{ts.Seconds}秒");
5 Console.ReadKey();