红宝石 |结构尺寸（）函数

size()是 Ruby 中的一个内置方法，它返回结构中存在的成员总数。

Syntax: struct_name.size()

Parameters: The function does not accepts any parameter.

Return Value: It returns the integer specifying the members of struct.

示例 1 ：

# Ruby program for size method in struct 
    
# Include struct
Places = Struct.new(:name, :speciality)
  
#initialize values
detail = Places.new("Nagpur", "oranges")
  
# size used
puts detail.size 

输出：

2

示例 2 ：

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

输出：

3