怎么在VB.NET中，提取系統(tǒng)日期中的后的 月和日 的位數(shù)

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

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Dim a As Short = Date.Now.Month

Dim b As Short = Date.Now.Day

MessageBox.Show(a)

MessageBox.Show(b)

End Sub

上面是獲取月份以及天數(shù)

'======================

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim a As Short = Date.Now.Month

Dim b As Short = Date.Now.Day

Dim c, d As String

If a 0 AndAlso a 10 Then

c = "1位數(shù)"

Else

c = "2位數(shù)"

End If

If b 0 AndAlso b 10 Then

d = "1位數(shù)"

Else

d = "2位數(shù)"

End If

MessageBox.Show(c)

MessageBox.Show(d)

End Sub

這個(gè)是獲取位數(shù)的

vb.net中如何獲取當(dāng)前日期所在星期的星期一的具體年月日

Dim ThisDay As String = Format(Now, "yyyy-MM-dd") '獲得當(dāng)前日期字符串

Dim ThisDateTime As DateTime = Convert.ToDateTime(ThisDay) '當(dāng)前日期轉(zhuǎn)換成DateTime

Dim ThisWeekDay As Integer = ThisDateTime.DayOfWeek '獲得當(dāng)前日期是星期幾

Dim differadd As Integer = 1 - ThisWeekDay '相差的天數(shù)（星期1與當(dāng)前星期幾相差的天數(shù)）

Dim MyAdd As New TimeSpan(differadd, 0, 0, 0)

Dim MyYear As Integer = Format(Now, "yyyy") '獲取當(dāng)前日期的年份

Dim MyMonth As Integer = Format(Now, "MM") '獲取當(dāng)前日期的月份

Dim MyDay As Integer = Format(Now, "dd") '獲取當(dāng)前日期是幾號(hào)

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)

vb.net中怎么獲取日期中的年月日時(shí)分秒

Dim ThisDay As String = Format(Now, "yyyy-MM-dd") '獲得當(dāng)前日期字符串

Dim ThisDateTime As DateTime = Convert.ToDateTime(ThisDay) '當(dāng)前日期轉(zhuǎn)換成DateTime

Dim ThisWeekDay As Integer = ThisDateTime.DayOfWeek '獲得當(dāng)前日期是星期幾

Dim differadd As Integer = 1 - ThisWeekDay '相差的天數(shù)（星期1與當(dāng)前星期幾相差的天數(shù)）

Dim MyAdd As New TimeSpan(differadd, 0, 0, 0)

Dim MyYear As Integer = Format(Now, "yyyy") '獲取當(dāng)前日期的年份

Dim MyMonth As Integer = Format(Now, "MM") '獲取當(dāng)前日期的月份

Dim MyDay As Integer = Format(Now, "dd") '獲取當(dāng)前日期是幾號(hào)

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)