Objective-C for Windows [2013-10-21更新]

1. 下载并安装 GNUstep MSYS System、GNUstep Core、GNUstep Devel
http://www.gnustep.org/experience/Windows.html

2. 下载并安装 Code::Blocks（例如：codeblocks-12.11-setup.exe）
http://www.codeblocks.org/downloads/26

3. 配置 Code::Blocks
参考：http://blog.csdn.net/ldl22847/article/details/7482971