Option Explicit Public Function HexToByte(ByVal Hex As String) As Byte() '将字符串形式的 Hex 值转换为 Byte 数组,例子:HexToByte("202020") Dim Tmp() As Byte, L As Long Hex = Trim(Replace(Hex, " ", "")) '处理字符串 L = Len(Hex) '获取字符串长度 If (L And 1) Then '判断是否是奇数 ReDim Tmp(0) MsgBox "Hex 字符串不能是奇数!", vbCritical, "警告" Else Dim I As Long ReDim Tmp(L / 2 - 1) For I = 1 To L Step 2 '循环截取 Tmp((I + 1) / 2 - 1) = Int("&H" & Mid(Hex, I, 2)) Next I End If HexToByte = Tmp() End Function Private Sub Winsock1_DataArrival(ByVal bytesTotal As Long) Dim Data() As Byte, I As Long Winsock1.GetData Data() For I = 83 To UBound(Data()) Step 32 Text1.Text = Text1.Text & Data(I + 5) & "." & Data(I + 6) & "." & Data(I + 7) & "." & Data(I + 8) & vbCrLf Next End Sub Private Sub Command1_Click() Dim Hex As String Hex = "1700022a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000" Text1.Text = "" Winsock1.Close Winsock1.Protocol = sckUDPProtocol 'UDP 模式 Winsock1.RemoteHost = ntp.Text '远程地址(域名或IP) Winsock1.RemotePort = 123 '远程端口 Winsock1.Bind 9999 '本地端口(可选,不指定则随机) Winsock1.SendData HexToByte(Hex) '发送数据 End Sub
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