sp.DtrEnable=true； sp.RtsEnable=true； sp.NewLine=Environment.NewLine； sp.Open（）； int-mSpeed=1； sp.Write（“AT+CMGF=1”+Environment.NewLine）； 系统线程线程睡眠（200）； sp.Write（“AT+CSCS=GSM”+Environment.NewLine）； 系统线程线程睡眠（200）； sp.Write（“AT+CMGS=”+（char）34+“+91”+MobNo +（char）34+环境（新行）； 系统线程线程睡眠（200）； sp.Write（Msg+（char）26）； 系统线程线程睡眠（mSpeed）； IsSendEndIndex=真；R } catchstring Msg=MessageBody.Substring（StartIndex，EndIndex）； SerialPort sp=新的SerialPort（）； 对于（int q=0；q>@斯波克探员请学习如何格式化您的代码，以便您以外的任何人都能理解。不要只是复制粘贴。请格式化代码好吗？我必须从我的c#应用程序发送短信，我真的需要代码。>>@Agent_Spock/**像这样访问上面的类**/string[]ports=SerialPort.GetPortNames（）；foreach（端口中的字符串端口）{SMS sm=new SMS（端口）；sm.Opens（）；sm.sendSMS（，）；sm.Closes（）；}/**像这样访问上面的类**/string[]ports=SerialPort.GetPortNames（）；foreach（端口中的字符串端口）{SMS sm=new SMS（端口）；sm.Opens（）；sm.sendSMS（，）；sm.Closes（）；} using System; using System.Collections.Generic; using System.Text; using System.Threading; using System.IO.Ports; namespace WindowsFormsApplication1 { public class SMS { SerialPort serialPort; //Initialize the Port public SMS(string comPort) { this.serialPort = new SerialPort(); this.serialPort.PortName = comPort; this.serialPort.BaudRate = 9600; this.serialPort.Parity = Parity.None; this.serialPort.DataBits = 8; this.serialPort.StopBits = StopBits.One; this.serialPort.Handshake = Handshake.RequestToSend; this.serialPort.DtrEnable = true; this.serialPort.RtsEnable = true; this.serialPort.NewLine = System.Environment.NewLine; } //create and send SMS public bool sendSMS(string cellNo, string sms) { string messages = null; messages = sms; if (this.serialPort.IsOpen == true) { try { this.serialPort.WriteLine("AT" + (char)(13)); Thread.Sleep(4); this.serialPort.WriteLine("AT+CMGF=1" + (char)(13)); Thread.Sleep(5); this.serialPort.WriteLine("AT+CMGS=\"" + cellNo + "\""); Thread.Sleep(10); this.serialPort.WriteLine("" + messages + (char)(26)); } catch (Exception ex) { ex.ToString(); } return true; } else return false; } public void Opens() { try { if (this.serialPort.IsOpen == false) { this.serialPort.Open(); } } catch (Exception ex) { ex.ToString(); } } using System.IO.Ports; using System.Threading; private SerialPort _serialPort; _serialPort = new SerialPort(comboBoxEdit3.Text, 115200); Thread.Sleep(100); _serialPort.Open(); Thread.Sleep(100); _serialPort.Write("AT+CMGF=1\r"); Thread.Sleep(100); _serialPort.Write("AT+CMGS=\"" + number + "\"\r\n"); Thread.Sleep(100); _serialPort.Write(messages + "\x1A"); Thread.Sleep(300); MessageBox.Show("Password Sent on your Mobile !!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information); _serialPort.Close();

//使用以下方法

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.IO.Ports;

namespace WindowsFormsApplication1
{
public class SMS
{
    SerialPort serialPort;

    //Initialize the Port
    public SMS(string comPort)
    {
        this.serialPort = new SerialPort();
        this.serialPort.PortName = comPort;
        this.serialPort.BaudRate = 9600;
        this.serialPort.Parity = Parity.None;
        this.serialPort.DataBits = 8;
        this.serialPort.StopBits = StopBits.One;
        this.serialPort.Handshake = Handshake.RequestToSend;
        this.serialPort.DtrEnable = true;
        this.serialPort.RtsEnable = true;
        this.serialPort.NewLine = System.Environment.NewLine;
    }

    //create and send SMS 
    public bool sendSMS(string cellNo, string sms)
    {
        string messages = null;
        messages = sms;
        if (this.serialPort.IsOpen == true)
        {
            try
            {
                this.serialPort.WriteLine("AT" + (char)(13));
                Thread.Sleep(4);
                this.serialPort.WriteLine("AT+CMGF=1" + (char)(13));
                Thread.Sleep(5);
                this.serialPort.WriteLine("AT+CMGS=\"" + cellNo + "\"");
                Thread.Sleep(10);
                this.serialPort.WriteLine("" + messages + (char)(26));
            }
            catch (Exception ex)
            {
               ex.ToString();
            }
            return true;
        }
        else return false;
    }

public void Opens()
{
    try
    {
        if (this.serialPort.IsOpen == false)
        {
            this.serialPort.Open();
        }
    }
    catch (Exception ex)
    {
        ex.ToString();
    }
}

---

//使用以下方法

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.IO.Ports;

namespace WindowsFormsApplication1
{
public class SMS
{
    SerialPort serialPort;

    //Initialize the Port
    public SMS(string comPort)
    {
        this.serialPort = new SerialPort();
        this.serialPort.PortName = comPort;
        this.serialPort.BaudRate = 9600;
        this.serialPort.Parity = Parity.None;
        this.serialPort.DataBits = 8;
        this.serialPort.StopBits = StopBits.One;
        this.serialPort.Handshake = Handshake.RequestToSend;
        this.serialPort.DtrEnable = true;
        this.serialPort.RtsEnable = true;
        this.serialPort.NewLine = System.Environment.NewLine;
    }

    //create and send SMS 
    public bool sendSMS(string cellNo, string sms)
    {
        string messages = null;
        messages = sms;
        if (this.serialPort.IsOpen == true)
        {
            try
            {
                this.serialPort.WriteLine("AT" + (char)(13));
                Thread.Sleep(4);
                this.serialPort.WriteLine("AT+CMGF=1" + (char)(13));
                Thread.Sleep(5);
                this.serialPort.WriteLine("AT+CMGS=\"" + cellNo + "\"");
                Thread.Sleep(10);
                this.serialPort.WriteLine("" + messages + (char)(26));
            }
            catch (Exception ex)
            {
               ex.ToString();
            }
            return true;
        }
        else return false;
    }

public void Opens()
{
    try
    {
        if (this.serialPort.IsOpen == false)
        {
            this.serialPort.Open();
        }
    }
    catch (Exception ex)
    {
        ex.ToString();
    }
}

---

尝试发送ATI和reading response以验证通信发送ATI和reading response以验证通信请学习设置代码格式，以便您以外的任何人都能理解。不要只是复制粘贴。请格式化代码好吗？我必须从我的c#应用程序发送短信，我真的需要代码。>>@斯波克探员请学习如何格式化您的代码，以便您以外的任何人都能理解。不要只是复制粘贴。请格式化代码好吗？我必须从我的c#应用程序发送短信，我真的需要代码。>>@Agent_Spock/**像这样访问上面的类**/string[]ports=SerialPort.GetPortNames（）；foreach（端口中的字符串端口）{SMS sm=new SMS（端口）；sm.Opens（）；sm.sendSMS（，）；sm.Closes（）；}/**像这样访问上面的类**/string[]ports=SerialPort.GetPortNames（）；foreach（端口中的字符串端口）{SMS sm=new SMS（端口）；sm.Opens（）；sm.sendSMS（，）；sm.Closes（）；}

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.IO.Ports;

namespace WindowsFormsApplication1
{
public class SMS
{
    SerialPort serialPort;

    //Initialize the Port
    public SMS(string comPort)
    {
        this.serialPort = new SerialPort();
        this.serialPort.PortName = comPort;
        this.serialPort.BaudRate = 9600;
        this.serialPort.Parity = Parity.None;
        this.serialPort.DataBits = 8;
        this.serialPort.StopBits = StopBits.One;
        this.serialPort.Handshake = Handshake.RequestToSend;
        this.serialPort.DtrEnable = true;
        this.serialPort.RtsEnable = true;
        this.serialPort.NewLine = System.Environment.NewLine;
    }

    //create and send SMS 
    public bool sendSMS(string cellNo, string sms)
    {
        string messages = null;
        messages = sms;
        if (this.serialPort.IsOpen == true)
        {
            try
            {
                this.serialPort.WriteLine("AT" + (char)(13));
                Thread.Sleep(4);
                this.serialPort.WriteLine("AT+CMGF=1" + (char)(13));
                Thread.Sleep(5);
                this.serialPort.WriteLine("AT+CMGS=\"" + cellNo + "\"");
                Thread.Sleep(10);
                this.serialPort.WriteLine("" + messages + (char)(26));
            }
            catch (Exception ex)
            {
               ex.ToString();
            }
            return true;
        }
        else return false;
    }

public void Opens()
{
    try
    {
        if (this.serialPort.IsOpen == false)
        {
            this.serialPort.Open();
        }
    }
    catch (Exception ex)
    {
        ex.ToString();
    }
}

using System.IO.Ports;
using System.Threading;

private SerialPort _serialPort;

    _serialPort = new SerialPort(comboBoxEdit3.Text, 115200);

    Thread.Sleep(100);
    _serialPort.Open();
    Thread.Sleep(100);
    _serialPort.Write("AT+CMGF=1\r");
    Thread.Sleep(100);
    _serialPort.Write("AT+CMGS=\"" + number + "\"\r\n");
    Thread.Sleep(100);
    _serialPort.Write(messages + "\x1A");
    Thread.Sleep(300);

    MessageBox.Show("Password Sent on your Mobile !!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);

    _serialPort.Close();