RedirectStandardOutput和批处理文件中的pause命令 [英] RedirectStandardOutput and the pause command in batch files

问题描述

在我的C#代码中，我必须运行一些外部进程.这些可能是批处理文件或可执行文件.通过将 ProcessStartInfo 的 RedirectStandardOutput 设置为true，可以将输出重定向到我自己的窗口.这样，即使在外部过程完成后，用户也可以查看输出.我还重定向输入，以便用户在必要时可以按键.一般而言，这很好.

In my C# code, I have to run some external processes. These could be batch files or executables. I redirect the output to a window of my own by having RedirectStandardOutput of the ProcessStartInfo be true. This allows the user to review the output even after the external process has finished. I also redirect the input so the user can press keys if necessary. This works very well in general.

但是，我有一个问题.一些批处理文件使用 PAUSE 命令.显然，直到按下键之前，命令不会刷新输出.因此，用户永远不会看到提示.因此，只有在按下某个键之后，用户才会看到他应该已经按下某个键才能继续.有没有办法做到这一点(除了不要使用暂停")?

However, I have one problem. Some of the batch files use the PAUSE command. Apparently the output isn't flushed by the command until a key has been pressed. Thus, the user never sees the prompt. So only after a key has been pressed will the user see that he should have pressed a key to continue. Is there a way to make this work (besides "Don't use PAUSE")?

批处理文件运行用户的CAM后处理器，通常由用户(或用户的IT部门)创建.因此，要求更改这些文件或通过创建pause.exe进行黑客入侵"并不是真正可行的解决方案(除非万不得已).

The batch files run the user's CAM post-processor and are usually created by the user (or the user's IT department). So requiring changes to these files or "hacking" by creating a pause.exe aren't really viable solutions (unless as very last resort).

推荐答案

在CMD中，尝试

batchWithPause.bat < nul

在C#中，类似于:

 Process.Start("batchWithPause.bat", "< nul");

编辑，那么您只是想让用户看到按任意键继续"?然后添加

EDIT So you simply want to the user to see "Press any key to continue"? Then add

@echo "Press any key to continue..."

在每次暂停调用之前.您还可以:

before each pause call. You could also:

1. 编写自己的pause.bat，基本上可以做到

2. 编写一个简单的pause.exe，用c#表示:

1. Write your own pause.bat that does that essentially

2. Write a simple pause.exe, say in c#:

公共静态无效Pause(){Console.WriteLine(点击进入以继续.");Console.Read();}

public static void Pause() { Console.WriteLine("Hit enter to continue."); Console.Read(); }

编辑2 ，我现在了解您的问题.仅在用户按下一个键之后，异步OutputDataReceived和StreamReader.ReadLine()都将读取暂停的按任意键继续".但是，如果您要自己循环StreamReader.Read()，您还将获得按任意键继续".因此，这似乎是您唯一可行的路线.

EDIT 2 I understand your problem now. Both the async OutputDataReceived and StreamReader.ReadLine() would read pause's "Press any key to continue" only after the user has pressed a key. However, if you were to loop StreamReader.Read() yourself, you would also get the "Press any key to continue". So this appears to be your only possible route.

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