Dim postData As String
        Dim byteArray As Byte()
        Dim objWebRequest As HttpWebRequest
        Dim newStream As Stream

        postData = "cell=短信供应商提供信息1&enterpriseId=短信供应商提供信息2&mobile=手机号1,手机号2&message=发送数据测试。。。"
        objWebRequest = WebRequest.Create("http://xxx.yyy.com.cn/SmsSend.jsp")
        objWebRequest.Method = "POST"
        objWebRequest.ContentType = "application/x-www-form-urlencoded"

        byteArray = System.Text.Encoding.UTF8.GetBytes(postData)
        objWebRequest.ContentLength = byteArray.Length
        newStream = objWebRequest.GetRequestStream()
        newStream.Write(byteArray, 0, byteArray.Length)
        newStream.Close()

        '返回数据
        Dim response As HttpWebResponse
        Dim sr As StreamReader
        Dim textResponse As String
        response = objWebRequest.GetResponse()
        sr = New StreamReader(response.GetResponseStream(), System.Text.Encoding.Default)
        textResponse = sr.ReadToEnd()