ruby - Accessing Returned Function Values in Ruby

Question

Consider the following function:

def function
  return 1, 2
end

How can I set a equal to 1 and b equal to 2, assuming a and b are variables?

Please don't recommend a=1 and b=2, the point is to understand how to access what the function has returned.

Answer 1

您可以使用逗号：

a, b = function

实际上，function返回一个包含两个元素的数组：

def function
  return 1,2
end
=> nil 
function
=> [1, 2] 

而且您正在解构数组 - 即数组中的每个元素都转到一个变量。

有趣的事实：此示例中需要关键字return。

Answer 2

只需做一个多重分配：

def function
  return 1, 2
end

a, b = function