有没有办法在c#应用程序中运行命令提示符命令?如果是这样,我该如何做以下几点:
copy /b Image1.jpg + Archive.rar Image2.jpg
这基本上是在JPG图像中嵌入一个RAR文件。我只是想知道在c#中是否有一种方法可以自动做到这一点。
有没有办法在c#应用程序中运行命令提示符命令?如果是这样,我该如何做以下几点:
copy /b Image1.jpg + Archive.rar Image2.jpg
这基本上是在JPG图像中嵌入一个RAR文件。我只是想知道在c#中是否有一种方法可以自动做到这一点。
当前回答
如果您想在异步模式下运行该命令-并打印结果。你可以学习这门课:
public static class ExecuteCmd
{
/// <summary>
/// Executes a shell command synchronously.
/// </summary>
/// <param name="command">string command</param>
/// <returns>string, as output of the command.</returns>
public static void ExecuteCommandSync(object command)
{
try
{
// create the ProcessStartInfo using "cmd" as the program to be run, and "/c " as the parameters.
// Incidentally, /c tells cmd that we want it to execute the command that follows, and then exit.
System.Diagnostics.ProcessStartInfo procStartInfo = new System.Diagnostics.ProcessStartInfo("cmd", "/c " + command);
// The following commands are needed to redirect the standard output.
//This means that it will be redirected to the Process.StandardOutput StreamReader.
procStartInfo.RedirectStandardOutput = true;
procStartInfo.UseShellExecute = false;
// Do not create the black window.
procStartInfo.CreateNoWindow = true;
// Now we create a process, assign its ProcessStartInfo and start it
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo = procStartInfo;
proc.Start();
// Get the output into a string
string result = proc.StandardOutput.ReadToEnd();
// Display the command output.
Console.WriteLine(result);
}
catch (Exception objException)
{
// Log the exception
Console.WriteLine("ExecuteCommandSync failed" + objException.Message);
}
}
/// <summary>
/// Execute the command Asynchronously.
/// </summary>
/// <param name="command">string command.</param>
public static void ExecuteCommandAsync(string command)
{
try
{
//Asynchronously start the Thread to process the Execute command request.
Thread objThread = new Thread(new ParameterizedThreadStart(ExecuteCommandSync));
//Make the thread as background thread.
objThread.IsBackground = true;
//Set the Priority of the thread.
objThread.Priority = ThreadPriority.AboveNormal;
//Start the thread.
objThread.Start(command);
}
catch (ThreadStartException )
{
// Log the exception
}
catch (ThreadAbortException )
{
// Log the exception
}
catch (Exception )
{
// Log the exception
}
}
}
其他回答
如果你想保持CMD窗口打开,或者想在winform/wpf中使用它,那么就像这样使用它
string strCmdText;
//For Testing
strCmdText= "/K ipconfig";
System.Diagnostics.Process.Start("CMD.exe",strCmdText);
/K
将保持cmd窗口打开吗
这里是一个小简单和较少的代码版本。它也会隐藏控制台窗口
System.Diagnostics.Process process = new System.Diagnostics.Process();
process.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
process.StartInfo.FileName = "cmd.exe";
process.StartInfo.Arguments = "/C copy /b Image1.jpg + Archive.rar Image2.jpg";
process.Start();
你可以通过以下方法来实现这一点(在其他答案中提到过):
strCmdText = "'/C some command";
Process.Start("CMD.exe", strCmdText);
当我尝试上面列出的方法时,我发现我的自定义命令不能使用上面一些答案的语法。
我发现更复杂的命令需要封装在引号中才能工作:
string strCmdText;
strCmdText = "'/C cd " + path + " && composer update && composer install -o'";
Process.Start("CMD.exe", strCmdText);
我有以下方法,用于从c#运行命令提示符命令
在第一个参数中传递要运行的命令
public static string RunCommand(string arguments, bool readOutput)
{
var output = string.Empty;
try
{
var startInfo = new ProcessStartInfo
{
Verb = "runas",
FileName = "cmd.exe",
Arguments = "/C "+arguments,
WindowStyle = ProcessWindowStyle.Hidden,
UseShellExecute = false,
CreateNoWindow = true,
RedirectStandardOutput = true,
RedirectStandardError = false
};
var proc = Process.Start(startInfo);
if (readOutput)
{
output = proc.StandardOutput.ReadToEnd();
}
proc.WaitForExit(60000);
return output;
}
catch (Exception)
{
return output;
}
}
虽然从技术上讲,这并没有直接回答提出的问题,但它确实回答了如何做原始海报想做的事情:合并文件。如果有的话,这篇文章是为了帮助新手理解Instance Hunter和Konstantin在说什么。
这是我用来组合文件(在本例中是jpg和zip)的方法。注意,我创建了一个缓冲区,填充zip文件的内容(以小块的形式,而不是在一个大的读取操作中),然后缓冲区被写入jpg文件的后面,直到到达zip文件的末尾:
private void CombineFiles(string jpgFileName, string zipFileName)
{
using (Stream original = new FileStream(jpgFileName, FileMode.Append))
{
using (Stream extra = new FileStream(zipFileName, FileMode.Open, FileAccess.Read))
{
var buffer = new byte[32 * 1024];
int blockSize;
while ((blockSize = extra.Read(buffer, 0, buffer.Length)) > 0)
{
original.Write(buffer, 0, blockSize);
}
}
}
}