vb.net中怎么获取日期中的年月日时分秒

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)

vb。net怎么获取网络上的时间 坐等

Dim obj,OBJStatus As Object,url As String,GetText As String,i As Integer

Dim Retrieval

url=""

'判断网络是否连接

If url""Then

Retrieval=GetObject("winmgmts:\\.\root\cimv2")

obj=Retrieval.ExecQuery("Select*FromWin32_PingStatusWhereAddress='"Mid(url,8)"'")

For Each OBJStatus In obj

If IsNothing(OBJStatus.StatusCode) Or OBJStatus.StatusCode0 Then

Exit Sub

Else

Exit For'已连接则继续

End If

Next

End If

'通过下载网页头信息获取网络时间

Retrieval=CreateObject("Microsoft.XMLHTTP")

With Retrieval

.Open ( "Get",url,False,"","")

.setRequestHeader ("If-Modified-Since","0")

.setRequestHeader ("Cache-Control","no-cache")

.setRequestHeader ("Connection","close")

.Send()

If.Readystate4 Then Exit Sub

GetText=.getAllResponseHeaders()

i=InStr(1,GetText,"date:",vbTextCompare)

If i0 Then'网页下载成功

i=InStr(i,GetText,",",vbTextCompare)

GetText= Trim(Mid(GetText,i+1))

i=InStr(1,GetText,"GMT",vbTextCompare)

GetText=GetText.Substring(0,i-1)'  Left(GetText,i-1)

MsgBox ("网络时间:"GetText)

End If

End With

Retrieval=Nothing

OBJStatus=Nothing

obj=Nothing

vb.net 如何获取时间？

两种方式自己选用

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

Dim s As String

s = DateTime.Today.Year()

s = s DateTime.Today.Month()

s = s DateTime.Today.Day()

s = s DateTime.Now.Hour()

s = s DateTime.Now.Minute()

s = s DateTime.Now.Second()

MsgBox(s, vbDefaultButton1, Now())

End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

Dim s As String

s = Format(Now(), "yyyymmddhhmmss")

MsgBox(s, vbYes, Now())

End Sub

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