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      VB.net 2010 視頻教程 VB.net 2010 視頻教程 VB.net 2010 視頻教程
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      首頁 > 編程開發 > vb >
      • vb教程之VB中用Winsock控件發信Email

      • 2017-09-22 22:27 來源:未知
      使用控件有:Winsock控件,CommandButton 控件,TextBox 控件
      編程步驟如下:
      1.聲明變量
      2.把如下代碼加到Command1的Command1_Click事件:
      Private Sub Command1_Click()
      Winsock1.LocalPort = 0 '設置本地使用的端口
      Winsock1.Protocol = sckTCPProtocol '設置Winsock控件使用的協議,TCP或UDP。
      Winsock1.RemoteHost="smtp.21cn.com" '設置發送Email的服務器
      Winsock1.RemotePort = 25 '設置要連接的遠程端口號 
      Winsock1.Connect '返回與遠程計算機的連接。
      End Sub
      這里要注意的是:Winsock1.RemotePort的值,80為HTTP,21為FTP,25為SMTP。

      3.把如下代碼加到Winsock1的Connect事件:
      Private Sub Winsock1_Connect() ''當一個 Connect 操作完成時發生
      first = "mail from:" + Chr(32) + "yingzi007@21cn.com" + vbCrLf '發信人地址
      Second = "rcpt to:" + Chr(32) + "yingzi007@21cn.com" + vbCrLf '收信人地址
      DateNow = Format(Date, "Ddd") & ", " & Format(Date, "dd Mmm YYYY") & " " & Format(Time, "hh:mm:ss") & "" & " -0600"
      Third = "Date:" + Chr(32) + DateNow + vbCrLf '開始發信時間
      Fourth = "From:" + Chr(32) + "VB 小園" + vbCrLf '發信人姓名
      Fifth = "To:" + Chr(32) + "Jimven"+ vbCrLf '收信人姓名
      Sixth = "Subject:" + Chr(32) +"VB 小園更新通知" + vbCrLf '發信的主題
      Seventh = "VB 小園已經更新" + vbCrLf '發信的內容
      Ninth = "X-Mailer: EBT Reporter v 2.x" + vbCrLf
      Eighth = Fourth + Third + Ninth + Fifth + Sixth 
      Winsock1.SendData ("HELO www.21cn.com" + vbCrLf) '開始發送
      Winsock1.SendData (first) 
      Winsock1.SendData (Second)
      Winsock1.SendData ("data" + vbCrLf)
      Winsock1.SendData (Eighth + vbCrLf)
      Winsock1.SendData (Seventh + vbCrLf)
      Winsock1.SendData ("." + vbCrLf)
      Winsock1.SendData ("quit" + vbCrLf)
      End Sub

      4.把如下代碼加到Winsock1的DataAmival事件:
      Private Sub Winsock1_DataArrival(ByVal bytesTotal As Long) '接受數據時產生
      On Error Resume Next '在錯誤處理程序結束后,恢復原有的運行
      Dim webData As String
      Winsock1.GetData webData, vbString '取得發信后的反饋信息,可以檢查是否錯誤
      Text1.Text = Text1.Text + webData
      'Debug.Print Text1.Text
      End Sub 
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