获取本周的周一和周日

代码 // 获取本周的周一
public string GetThisWeekMonday()
{
DateTime date = DateTime.Now;
DateTime first = System.DateTime.Now;
switch (date.DayOfWeek)
{
case System.DayOfWeek.Monday:
first = date;
break;
case System.DayOfWeek.Tuesday:
first = date.AddDays(-1);
break;
case System.DayOfWeek.Wednesday:
first = date.AddDays(-2);
break;
case System.DayOfWeek.Thursday:
first = date.AddDays(-3);
break;
case System.DayOfWeek.Friday:
first = date.AddDays(-4);
break;
case System.DayOfWeek.Saturday:
first = date.AddDays(-5);
break;
case System.DayOfWeek.Sunday:
first = date.AddDays(-6);
break;
}
return first.ToString("yyyy-MM-dd");
}

// 获取本周的周日
public string GetThisWeekSunday()
{
DateTime date = DateTime.Now;
DateTime last = System.DateTime.Now;
switch (date.DayOfWeek)
{
case System.DayOfWeek.Monday:
last = date.AddDays(6);
break;
case System.DayOfWeek.Tuesday:
last = date.AddDays(5);
break;
case System.DayOfWeek.Wednesday:
last = date.AddDays(4);
break;
case System.DayOfWeek.Thursday:
last = date.AddDays(3);
break;
case System.DayOfWeek.Friday:
last = date.AddDays(2);
break;
case System.DayOfWeek.Saturday:
last = date.AddDays(1);
break;
case System.DayOfWeek.Sunday:
last = date;
break;
}
return last.ToString("yyyy-MM-dd");
}