notes

rails:
gem install rails
rails demo
cd demo
ruby script\server controller say
modify saycontroller.rb
touch hello.rhtml under view\say
====
#about character encoding
config\environment.rb: $KCODE='utf8'

config\database.yml: encoding:utf8

====

ruby script\generate scaffold Product Admin
ruby script\generate controller Store index
ruby script\generate model User
ruby script\generate controller Login add_user login logout delete_user
                                                             list_user
(login_controller.rb,login.rhtml,logout.rhtml,add_user.rhtml...)