在Windows 8上使用MinGW在cmd中编译C ++

问题描述

我试图从命令行编译c ++程序，但我不能。我尝试了的所有步骤和说明。

我安装了MinGW，但是我在安装的最后一步遇到困难，它解释了如何更改环境路径。在环境变量中没有PATH的一部分，当我尝试添加它或甚至编辑系统变量中的一个时，编译不起作用（当我在命令提示符中键入g ++时，没有任何东西出现）。

我在网上搜索解决方案，但是我一直找不到任何东西。

重新安装MinGW32解决了无法编译C ++的问题。

添加; C：\mingw\bin 在PATH变量下，在我的电脑中的属性中的高级设置中修复了在cmd中编译的问题，正如@Chrono Kitsune所回答的。

按打开运行对话框，然后键入

  sysdm.cpl，3 
  

点击环境变量按钮。 $ b

有两个部分：用户变量（顶部）和系统变量（底部）。如果您没有 PATH 变量，请点击新建按钮，然后点击新建按钮。为变量名键入 PATH 。否则，只需双击现有的 PATH 变量。现在，将以下内容添加到变量值的末尾：

 ; C：\mingw\bin 
  

其中 C：\mingw\bin 是包含 g ++。exe 。

在每个对话框上单击确定关闭它。 打开一个新的命令提示符并尝试执行

  g ++。exe -xc -E nul 
  

如果您仍然遇到错误，请尝试注销并重新登录。

I'm trying to compile c++ programs from the commandline, but I can't. I tried all the steps and instructions listed here.

I got MinGW installed, but I get stuck in the last step of the installation that explains how to change environment paths. There simply isn't PATH part of it on the environment variables, and when I try to add it or even edit the one in System variables, compiling doesn't work (nothing comes up when I type g++ on the command prompt).

I've searched online for solutions, but I haven't been able to find anything.

Reinstalling MinGW32 resolved the issue of not being able to compile C++ at all.

Adding ;C:\mingw\bin in the PATH variable under Advanced Settings in Properties in My Computer fixed compiling in cmd, as answered by @Chrono Kitsune.

解决方案

1. Press to open the Run dialog and type

   sysdm.cpl ,3
   

2. Click the "Environment Variables" button.
3. There are two sections: "User Variables" (top) and "System Variables" (bottom). You want to look at the top section.
4. If you don't have a PATH variable, click the "New" button and type PATH for the variable name. Otherwise, just double-click the existing PATH variable.

5. Now add the following to the end of the variable's value:

   ;C:\mingw\bin
   

   where C:\mingw\bin is the folder containing g++.exe.

6. Click OK on each dialog box to close it.

7. Open a new command prompt and try to execute

   g++.exe -xc -E nul
   

   If you still get an error, try logging off and logging back on.

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