不是 有 函數(shù)嘛?
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now() 就是 吧
取得 后 再 分離出你所需的,分別賦值 就行了,當然 還是 有 函數(shù)的
Label1.Text?=?"12時演示:"?+?Now.ToString("yyyy-MM-dd?hh:mm:ss")
Label2.Text?=?"24時演示:"?+?Now.ToString("yyyy-MM-dd?HH:mm:ss")
Label3.Text?=?"UTC時演示:"?+?System.DateTime.UtcNow.ToString("yyyy-MM-dd?HH:mm:ss")
Label4.Text?=?"時間為不補0:"?+?Now.ToString("yyyy-MM-dd?H:m:s")
Label5.Text?=?"時間戳:"?+?CLng(System.DateTime.UtcNow.Subtract(New?Date(1970,?1,?1,?0,?0,?0)).TotalMilliseconds).ToString
你是指Internet上的國際標準時間嗎。
先加入控件 AxWinsock1 在.Com中Microsoft.Winsock
Public Class Form1
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Integer)
Dim NoSrv As Boolean
Dim TimeFromNet As String
Dim OldTime As Date
Dim NewTime As Date
Dim MyDate As Date
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If AxWinsock1.CtlState MSWinsockLib.StateConstants.sckClosed Then AxWinsock1.Close()
AxWinsock1.Protocol = MSWinsockLib.ProtocolConstants.sckTCPProtocol
NetTime("") '首先取中科院國家授時中心時間
If NoSrv Or TimeFromNet = "" Then
NetTime("time.nist.gov") '取美國標準技時院時間
If NoSrv Or TimeFromNet = "" Then
MsgBox("檢測不到網(wǎng)絡(luò)標準時間服務(wù)器time.nist.gov!")
Else
NetTime("time.nist.gov")
If TimeFromNet = "" Then
MsgBox("網(wǎng)絡(luò)標準時間服務(wù)器time.nist.gov超時!")
Else
MyDate = Mid(TimeFromNet, 8, 8)
OldTime = Mid(TimeFromNet, 17, 8)
NewTime = TimeSerial((Hour(OldTime) + 8) Mod 24, Minute(OldTime), Second(OldTime))
Dim MyTime As DateTime = MyDate Space(1) NewTime
MsgBox(MyTime)
'SetWindowsClock(MyTime)
End If
End If
Else
'使網(wǎng)絡(luò)誤差時間小,第2次再中科院國家授時中心時間
NetTime("")
If TimeFromNet = "" Then
MsgBox("網(wǎng)絡(luò)標準時間服務(wù)器超時!")
Else
MyDate = Mid(TimeFromNet, 8, 8)
NewTime = Mid(TimeFromNet, 17, 8)
Dim MyTime As DateTime = MyDate Space(1) NewTime
MsgBox(MyTime)
'SetWindowsClock(MyTime)
End If
End If
End Sub
Private Sub NetTime(ByVal TimeSrv As String)
NoSrv = False
TimeFromNet = ""
If AxWinsock1.CtlState MSWinsockLib.StateConstants.sckClosed Then AxWinsock1.Close()
AxWinsock1.RemoteHost = TimeSrv ' "" 或 "time.nist.gov"
AxWinsock1.RemotePort = 13
AxWinsock1.LocalPort = 0
AxWinsock1.Connect()
Do While TimeFromNet = ""
If NoSrv Then Exit Do
Sleep(55)
System.Windows.Forms.Application.DoEvents()
Loop
If AxWinsock1.CtlState MSWinsockLib.StateConstants.sckClosed Then AxWinsock1.Close()
End Sub
Private Sub AxAxWinsock1_CloseEvent(ByVal sender As Object, ByVal e As System.EventArgs) Handles AxWinsock1.CloseEvent
AxWinsock1.Close()
End Sub
Private Sub AxAxWinsock1_DataArrival(ByVal sender As Object, ByVal e As AxMSWinsockLib.DMSWinsockControlEvents_DataArrivalEvent) Handles AxWinsock1.DataArrival
AxWinsock1.GetData(TimeFromNet)
End Sub
Private Sub AxAxWinsock1_Error(ByVal sender As Object, ByVal e As AxMSWinsockLib.DMSWinsockControlEvents_ErrorEvent) Handles AxWinsock1.Error
NoSrv = True
End Sub
End Class
分享標題:vb.net讀取時間戳的簡單介紹
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