Before we begin You will be glad to know, assuming you have MySQL up and running, there is no installation necessary for this task. You will need access to the MySQL administrators password as well as administrative access so you can edit a MySQL configuration file. Other than that simple necessity (and a terminal window), [...]

官方的README是这样子写的： * Build x64 version (requires native x64 VC++ compiler) ex.) ruby source directory: C:\ruby build directory: C:\ruby install directory: C:\usr\local C: cd \ruby win32\configure –prefix=/usr/local –target=x64-mswin64 nmake nmake test nmake install按照这样的步骤执行下来没有什么问题。其中–prefix=/usr/local意思是指针对你的source目录所在盘的根目录而言。也就是安装目录的盘符必须和源代码目录一致。需要安装到其他盘的话要事先将源代码释放在那个盘里。