vb点虐 登陆时间的简单介绍
vb点虐 用户登录
哈哈简单哪
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第一步：登陆网页代码
第二步：登陆以后判断是否登陆成功
有两种方法：1.获取网页代码，判断网页字符有无”登陆成功”字样
源代码：
2.就是判断网页是否跳转到了某一页
源代码：
两种方法结合起来用，可以判断网页是否无法连接
Vb点虐 2008 如何获取网络时间
你是指Internet上的国际标准时间吗。
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("") '首先取中科院国家授时中心时间
If NoSrv Or TimeFromNet = "" Then
NetTime("time.nist.gov") '取美国标准技时院时间
If NoSrv Or TimeFromNet = "" Then
MsgBox("检测不到网络标准时间服务器time.nist.gov！")
Else
NetTime("time.nist.gov")
If TimeFromNet = "" Then
MsgBox("网络标准时间服务器time.nist.gov超时！")
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
'使网络误差时间小，第2次再中科院国家授时中心时间
NetTime("")
If TimeFromNet = "" Then
MsgBox("网络标准时间服务器超时！")
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
vb点虐 中如何获取系统的启动时间？
这个不能拿到吧~~你可以加一个自启动的模块~~开机后就开始记录时间
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