打破并返回红宝石，您如何使用它们？ [英] break and return in ruby, how do you use them?

问题描述

我刚刚问了问题关于收益及其问题似乎和休息一样。您如何使用return以及如何使用break，例如在您为解决可能使用这些构造的问题而编写的实际代码中。

I just asked a question about return and it seems to do the same thing as break. How do you use return, and how do you use break, such as in the actual code that you write to solve the problems that can use these constructs.

我可以不会真正发布示例，因为我不知道如何使用这些示例，因此它们没有太大意义。

I can't really post examples because I don't know how to use these so they wouldn't make much sense.

推荐答案

返回退出从整个功能。

Return exits from the entire function.

中断从最内层循环退出。

Break exits from the innermost loop.

因此，在这样的函数中：

Thus, in a function like so:

def testing(target, method)
  (0..100).each do |x|
    (0..100).each do |y|
     puts x*y
     if x*y == target
       break if method == "break"
       return if method == "return"
     end
    end 
  end
end

要查看差异，请尝试：

testing(50, "break")
testing(50, "return")

这篇关于打破并返回红宝石，您如何使用它们？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！