Rails instance variable

rails

#1

im a beginner of ruby on rails. i can run this program(Completed 200 OK),but the browser is blank. what i am missing? Help me !!!

routes.rb
get “lesson/:action” => “lesson”`

lesson_controller.rb
def step8
@price=(2000*1.08).floor
end

def step9
    @price = 1000
    render step8
end

def step10
    @comment = "<script>alert('haha')</script>hello"
end

step8.html.erb

<%= @price %>

step10.html.erb

<%= @comment %>

`indent preformatted text by 4 spaces`