cheat，一款ruby表格速查工具，偶尔在网上浏览发现的好东东，不敢独享，在这里给朋友分享一下：安装：gem install cheat使用：$cheat cheat$cheat sheets例子：输入：$cheat strftime输出：strftime:%a - The abbreviated weekday name (``Sun'')%A - Thefullweekdayname (``Sunday'')%b - The abbreviated month name (``Jan'')%B - Thefullmonthname (``January'')%c - The preferred local date and time representation%d - Day of the month (01..31)

http://railsonedge.blogspot.com/2008/02/rails-forum-tutorial-for-beginners-part.html这个教程有三个部分，英文不难，针对初学者，是个不错的参考。