C#隐藏cmd窗口需要输入

Question

在我的代码中，我需要运行很多 cmd 命令。所有这些都必须隐藏起来。作为示例，我将向您展示 2 个命令的代码。

string cmdText = @"/c regsvr32 vbscript.dll";
System.Diagnostics.Process temp = new System.Diagnostics.Process();
temp.StartInfo.Arguments = cmdText;
temp.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
temp.StartInfo.FileName = "cmd.exe";
temp.EnableRaisingEvents = true;
temp.Start();
temp.WaitForExit();
cmdText = @"/c regsvr32 jscript.dll";
temp.StartInfo.Arguments = cmdText;
temp.Start();
temp.WaitForExit();

现在的问题是某些命令(例如 gpupdate/force)需要输入(例如“Y/N”)。如何将此输入提供给 cmd？

Answer 1

您需要读取程序的输出并处理它/将所需的输入写回进程。为此，您还需要设置 Process/ProcessStartInfo 的更多属性:

string cmdText = @"/c regsvr32 vbscript.dll";
System.Diagnostics.Process temp = new System.Diagnostics.Process();
temp.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
temp.StartInfo.CreateNoWindow = true;
temp.StartInfo.Arguments = cmdText;
temp.StartInfo.FileName = "cmd.exe";
temp.StartInfo.RedirectStandardOutput=true;
temp.StartInfo.RedirectStandardInput=true;
temp.StartInfo.UseShellExecute=false;
temp.Start();

// Read program's output
StringBuilder sb = new StringBuilder();
while (!temp.StandardOutput.EndOfStream)
{
    char[] buffer = new char[1024];
    temp.StandardOutput.Read(buffer, 0, buffer.Length);
    sb.Append(buffer);

    // Check output string and write something back if needed
    if (sb.ToString().Contains("(Yes/No"))
    {
        temp.StandardInput.WriteLine("Y");
        sb.Clear();
    }
}
temp.WaitForExit();