從cmd讀取輸出獲取錯誤

Question

我一直在尋找「如何從cmd獲得標準輸出」，我發現了一些教程，但沒有，是的NONE似乎工作，即時嘗試讀取所有輸出「cmd。 exe「對我來說。

繼承人整個代碼，向下滾動的錯誤位置

public static string C(string arguments, bool b) 
    { 
     System.Diagnostics.Process process = new 
     System.Diagnostics.Process(); 
     System.Diagnostics.ProcessStartInfo startInfo = new 
     System.Diagnostics.ProcessStartInfo(); 
     startInfo.WindowStyle = 
     System.Diagnostics.ProcessWindowStyle.Hidden; 
     process.StartInfo.RedirectStandardOutput = true; 
     process.StartInfo.RedirectStandardInput = true; 
     process.StartInfo.UseShellExecute = false; 
     startInfo.FileName = "cmd.exe"; 
     startInfo.Arguments = arguments; 
     process.StartInfo = startInfo; 
     process.Start(); 

     string res = ""; 
     if (b) 
     { 
      StringBuilder q = new StringBuilder(); 
      while (!process.HasExited) 
      { 
       q.Append(process.StandardOutput.ReadToEnd()); 
      } 
      string r = q.ToString(); 
      res = r; 
     } 
     if(res == "" || res == null) 
     { 
      return "NO-RESULT"; 
     } 
     return res; 

    } 

從哪裏獲得我的錯誤（System.InvalidOperationException：「StandardOut沒有被重定向或進程尚未啓動。」）

string res = ""; 
    StringBuilder q = new StringBuilder(); 
    while (!process.HasExited) 
    { 
     q.Append(process.StandardOutput.ReadToEnd()); // Right here 
    } 
    string r = q.ToString(); 
    res = r; 

Answer 1

您正在創建一個名爲ProcessStartInfostartInfo，然後process.StartInfo設置一些屬性，然後分配給startInfo基本上process.StartInfo恢復你設置公關eviously。

，你應該在startInfo設置RedirectStandardOutput，RedirectStandardInput和UseShellExecute：

System.Diagnostics.Process process = new System.Diagnostics.Process(); 
System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo(); 
startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden; 
startInfo.RedirectStandardOutput = true; 
startInfo.RedirectStandardInput = true; 
startInfo.UseShellExecute = false; 
startInfo.FileName = "cmd.exe"; 
startInfo.Arguments = arguments; 
process.StartInfo = startInfo; 
process.Start();