Download and install getopt.exe from the util-linux package into C:\Program Files\Git\bin. (Only getopt.exe, the others util-linux files are not used). Also install libintl3.dll and libiconv2.dll from the Dependencies packages (libintl and libiconv), into the same directory.
说明：把链接里面的3个文件对应的二进制文件下载后，分别解压复制出对应的东西即可。
即复制getopt.exe、libint13.dll、libiconv2.dll到Git目录的bin下面
Clone the git-flow sources from GitHub:
$ git clone --recursive git://github.com/nvie/gitflow.git
说明：
我是在Git安装目录下，执行clone操作的，完成后会多出一个gitflow文件夹。
# 执行cmd （打开Windows的cmd窗口执行）
Run the msysgit-install script from a command-line prompt (you may have to run it with "Full Administrator" rights if you installed msysgit with its installer, and ensure you're running from a Windows command prompt, not MINGW):
C:\Program Files (x86)\Git\gitflow> contrib\msysgit-install.cmd
安装失败：
注：提示失败找不到Git安装目录，需要改成如下：
C:\Program Files (x86)\Git\gitflow> contrib\msysgit-install.cmd "C:\Program Files (x86)\Git"
安装成功：
完成后，可以在git bash运行 git flow help查看
# 初始化
执行 git flow init，基本都一直回车就行
例如：
