generate 查找顺序
rails/generators/initializer/initializer_generator.rb
generators/initializer/initializer_generator.rb
rails/generators/initializer_generator.rb
generators/initializer_generator.rb
lib/templates/rails/helper/helper.rb
customize your scaffold templates and/or layout by just creating
edit.html.erb,
index.html.erb and so on inside
lib/templates/erb/scaffold.