Dim ThisDay As String = Format(Now, "yyyy-MM-dd") '获得当前日期字符串
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Dim ThisDateTime As DateTime = Convert.ToDateTime(ThisDay) '当前日期转换成DateTime
Dim ThisWeekDay As Integer = ThisDateTime.DayOfWeek '获得当前日期是星期几
Dim differadd As Integer = 1 - ThisWeekDay '相差的天数（星期1与当前星期几相差的天数）
Dim MyAdd As New TimeSpan(differadd, 0, 0, 0)
Dim MyYear As Integer = Format(Now, "yyyy") '获取当前日期的年份
Dim MyMonth As Integer = Format(Now, "MM") '获取当前日期的月份
Dim MyDay As Integer = Format(Now, "dd") '获取当前日期是几号
Dim MyToday As DateTime = New DateTime(MyYear, MyMonth, MyDay)
Dim Yourday As DateTime = MyToday.Add(MyAdd)
MsgBox("本周星期一的日期是：" Yourday)
Public Function IsRunnian(ByVal n As Integer) As Boolean
Dim res As Boolean
res = False
If n Mod 400 = 0 Then
res = True
End If
If (n Mod 100 0) And (n Mod 4 = 0) Then
res = True
End If
IsRunnian = res
End Function
Public Function Fc(ByVal td As Date) As Byte
Dim y As Integer
Dim m As Integer
Dim d As Integer
Dim yc As Integer
Dim mc As Integer
Dim dc As Integer
y = Year(td)
m = Month(td)
d = Day(td)
dc = d
If IsRunnian(y) Then
mc = Val(Mid("512503514624", m, 1))
Else
mc = Val(Mid("622503514624", m, 1))
End If
yc = ((y Mod 100) \ 4 + (y Mod 100)) Mod 7
Fc = (yc + mc + dc) Mod 7
End Function
1
string[] Day = new string[] { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" };
string week = Day[Convert.ToInt32(DateTime.Now.DayOfWeek.ToString("d"))].ToString();
this.lbDay.Text = week;
2
this.lbDay.Text = System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(DateTime.Now.DayOfWeek);
