重定向进程输出C#

Question

我想将Process的标准输出重定向到一个字符串,以便以后解析.我还希望在进程运行时看到屏幕上的输出,而不仅仅是当它完成运行时.

这甚至可能吗？

Answer 1

使用RedirectStandardOutput.

来自MSDN的示例:

// Start the child process.
Process p = new Process();
// Redirect the output stream of the child process.
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.FileName = "Write500Lines.exe";
p.Start();
// Do not wait for the child process to exit before
// reading to the end of its redirected stream.
// p.WaitForExit();
// Read the output stream first and then wait.
string output = p.StandardOutput.ReadToEnd();
p.WaitForExit();

另请参阅OutputDataReceived并BeginOutputReadLine()替代ReadToEnd(),以更好地满足您的"在流程运行时查看输出"要求.

Answer 2

如果您想从 C# 应用程序执行 exe 并从中获取输出，则可以使用以下代码

System.Diagnostics.Process p = new System.Diagnostics.Process();            

p.StartInfo.FileName = "PATH TO YOUR FILE";
p.StartInfo.UseShellExecute = false;
p.StartInfo.Arguments = metalType + " " + graphHeight + " " + graphWidth;
p.StartInfo.CreateNoWindow = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;              

p.EnableRaisingEvents = true;
p.Start();            
svgText = p.StandardOutput.ReadToEnd();

using(StreamReader s = p.StandardError)
{
    string error = s.ReadToEnd();
    p.WaitForExit(20000);
}

不要忘记写 p.EnableRaisingEvents = true;