日期问题，我想知道当日所在的星期一和星期日的日期，请教各位 ，函数 怎么写啊？

Question

就是获得本周星期一的日期和星期日的日期，希望高手帮助解决

Answer 1

DateTime dt = DateTime.Now;
DateTime monday;
DateTime sunday;
int dayOfWeek = (int)dt.DayOfWeek;
monday = dt.AddDays(1-dayOfWeek);
sunday = dt.AddDays(7-dayOfWeek);
Console.WriteLine(monday);
Console.WriteLine(sunday);

Answer 2

int weekday = Convert.ToInt32(DateTime.Now.DayOfWeek);
        DateTime sunday = DateTime.Now.AddDays(-weekday);//如果星期天算周末那就 7-weekday
        DateTime monday = DateTime.Now.AddDays(1-weekday);

Answer 3

星期日 ：DateTime.Today.AddDays(-Convert.ToInt16(DateTime.Today.DayOfWeek))
星期一 ：DateTime.Today.AddDays(-Convert.ToInt16(DateTime.Today.DayOfWeek)+1)