红宝石 |构造 to_s()函数

to_s()是 Ruby 中的一个内置方法，它返回一个带有特定结构值的字符串。

Syntax: struct_name.to_s()

Parameters: The function does not accepts any parameter.

Return Value: It returns the value of struct.

示例 1 ：

# Ruby program for to_s method in struct 
    
# Include struct
animals = Struct.new(:name, :speciality , :found_in)
  
# initialize values
detail = animals.new("labrador", "bark" , "Newfoundland")
  
# to_s used
puts detail.to_s   

输出：

struct name="labrador", speciality="bark", found_in="Newfoundland"

示例 2 ：

# Ruby program for to_s method in struct 
    
# Include struct
animals = Struct.new(:name)
  
#initialize values
detail = animals.new("golden retriever")
  
#to_s used
puts detail.to_s

输出：

struct name="golden retriever"