Question

C# .Read()问题

在用C#和串口连接的时候，收发正常（和其他客户端连接），但是客户端是以hex方式发出的也就是16进制，而SerialPort中的.ReadByte()可以读取之后转换，但是太慢，要一个字节一个字节读，然后一个字节一个字节显示。.ReadLine()和.ReadExisting()读完直接转成string了。有什么办法解决？？我在网上下了个实例，串口调试助手，里面转码什么的很快啊。
别给我复制粘贴！看好我的问题。

Answer 1

ReadLine是一行一行的，有个例子
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Windows.Forms;
using System.IO.Ports;

#endregion

namespace Serialexpample
{
partial class Form1 : Form
{
//create instance of property page
//property page is used to set values for stop bits and
//baud rate

PropertyPage pp = new PropertyPage();

//create an Serial Port object
SerialPort sp = new SerialPort();

public Form1()
{
InitializeComponent();
}

private void propertyButton_Click(object sender, EventArgs e)
{
//show property dialog
pp.ShowDialog();

propertyButton.Hide();
}

private void sendButton_Click(object sender, EventArgs e)
{
try
{
//write line to serial port
sp.WriteLine(textBox.Text);
//clear the text box
textBox.Text = "";
}
catch (System.Exception ex)
{
baudRatelLabel.Text = ex.Message;
}

}

private void ReadButton_Click(object sender, EventArgs e)
{
try
{
//clear the text box
textBox.Text = "";
//read serial port and displayed the data in text box
textBox.Text = sp.ReadLine();
}
catch(System.Exception ex)
{
baudRatelLabel.Text = ex.Message;
}
}

private void Form1_Load(object sender, EventArgs e)
{

}

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
MessageBox.Show("Do u want to Close the App");
sp.Close();
}

private void startCommButton_Click(object sender, EventArgs e)
{
startCommButton.Hide();
sendButton.Show();
readButton.Show();
textBox.Show();
}

//when we want to save the status(value)
private void saveStatusButton_Click_1(object sender, EventArgs e)
{
//display values
//if no property is set the default values
if (pp.bRate == "" && pp.sBits == "")
{
dataBitLabel.Text = "BaudRate = " + sp.BaudRate.ToString();
readTimeOutLabel.Text = "StopBits = " + sp.StopBits.ToString();
}
else
{
dataBitLabel.Text = "BaudRate = " + pp.bRate;
readTimeOutLabel.Text = "StopBits = " + pp.sBits;
}

parityLabel.Text = "DataBits = " + sp.DataBits.ToString();
stopBitLabel.Text = "Parity = " + sp.Parity.ToString();
readTimeOutLabel.Text = "ReadTimeout = " +
sp.ReadTimeout.ToString();

if (propertyButton.Visible == true)
propertyButton.Hide();
saveStatusButton.Hide();
startCommButton.Show();

try
{
//open serial port
sp.Open();
//set read time out to 500 ms
sp.ReadTimeout = 500;
}
catch (System.Exception ex)
{
baudRatelLabel.Text = ex.Message;
}
}
}
}