代码如下:string firstDayOfThisQuarter = DateTime.Now.AddMonths(0-(DateTime.Now.Month – 1)%3).ToString(“yyyy-MM-01”);Console.WriteLine(“本季度的第一天为:{0}”,firstDayOfThisQuarter);
string lastDayOfThisQuarter = DateTime.Parse(DateTime.Now.AddMonths(3 – ((DateTim