为什么我的 Ruby / Sinatra 方法没有将所有字符串打印到屏幕上？

Question

我在业余时间编写一个游戏来娱乐，并试图向我的老师炫耀我的知识。当我在 sinatra 中调用这个方法时，它知道你选择了多少次点击，如果它超过 2，它只会将 1 次点击添加到你的酸量中，然后告诉你它添加了多少。但是，如果您选择超过 2 个匹配项，它还应该告诉您只能从 1 或 2 个开始，并显示消息说明。但是它没有显示第一条消息或第二条消息。它只是告诉消息说明添加了 1 次或 2 次匹配。关于为什么或如何解决它的任何想法？

我的后端

class Trippy_methods

def start_with_amount(hits)
    "You wanna start with 1 or 2 hits?"
@acid_amount = 0

    if hits == 2
         @acid_amount += 2
    else @acid_amount += 1
        "You may only start with 1 or 2 Hits...Ill give you the 1 hit for now. Don't Worry you will get more as time progresses  "
    end
        "You Started off with taking #{@acid_amount} hits of acid....Enjoy"
end
end

在我的前端

post '/stick_out_tounge' do
tounge = params[:tounge]
name = session[:name]
session[:hits] = params[:hits]
hits = session[:hits].to_i
  if tounge == "Yes"
    erb :stick_out_your_tounge, :locals => {:yes => you_say.ok_to_acid, :places => trippy_messages.places_acid_on_tounge, :leave => trippy_messages.dosed_now_leave?, 
                                            :start_amount => trippy_methods.start_with_amount(hits) }

elsif tounge == "No"
    erb :chillathome2, :locals => {:message1 => "You Say \" Gee I don't know man why what is it ?......\"", 
                                   :stick_out_tounge => "Dave says to you... \"Hey #{session[:name]} if you need to know than it wont be as fun..... \"", 
                                   :doyou => "Do you still wanna know what it is ?"}
end
end

Answer 1

ruby 中的方法总是 return 最后计算的表达式。因此，在您的示例中，您有

def start_with_amount(hits)
  "You wanna start with 1 or 2 hits?"
  @acid_amount = 0

  if hits == 2
    @acid_amount += 2
  else @acid_amount += 1
    "You may only start with 1 or 2 Hits...Ill give you the 1 hit for now. Don't Worry you will get more as time progresses  "
  end
  "You Started off with taking #{@acid_amount} hits of acid....Enjoy" # <- This is the last evaluated expression. 
end

所以无论方法做什么，它都会总是 return "You Started off with taking #{@acid_amount} hits of acid....Enjoy"

解决方法是将""You wanna start with 1 or 2 hits?"移出方法，单独发送给视图，在用户选择自己想要的命中数之前显示出来。

要解决其他消息不显示的问题，您需要解决您的问题。

def start_with_amount(hits)
  @acid_amount = 0
  result = "You Started off with taking #{@acid_amount} hits of acid....Enjoy"
  if hits == 2
    @acid_amount += 2
  elsif hits == 1
    @acid_amount += 1
  else
    result = "You may only start with 1 or 2 Hits...Ill give you the 1 hit for now. Don't Worry you will get more as time progresses  "
  end
  result
end

为什么我的 Ruby / Sinatra 方法没有将所有字符串打印到屏幕上？

Why do my Ruby / Sinatra methods not print all the strings to the screen?

ruby

sinatra