Ruby 使用(+)函数进行数组连接

Array#+()是一个数组类方法，它通过将两个数组合并到第三个数组来执行数组连接操作。

语法。Array.+()

参数。用于执行连接操作的数组。

返回通过合并两个数组得到的新数组。

例子 #1 :

# Ruby code for +() method
# showing concatenate operation
  
# declaring array
a = [18, 22, 33, 4, 5, 6]
  
# declaring array
b = [5, 4, 22, 1, 88, 9]
  
# declaring array
c = [18, 22, 33, 40, 50, 6]
  
# combining arrays
puts "combination of a and b : #{a + b}\n\n"
  
# combining arrays
puts "combination of a and c : #{a + c}\n\n"
  
# combining arrays
puts "combination of b and c : #{b + c}\n\n"

输出:

combination of a and b : [18, 22, 33, 4, 5, 6, 5, 4, 22, 1, 88, 9]

combination of a and c : [18, 22, 33, 4, 5, 6, 18, 22, 33, 40, 50, 6]

combination of b and c : [5, 4, 22, 1, 88, 9, 18, 22, 33, 40, 50, 6]

例子 #2 :

# Ruby code for +() method
# showing concatenate operation
  
# declaring array
a = ["abc", "xyz", "dog"]
  
# declaring array
b = ["cow", "cat", "dog"]
  
# declaring array
c = ["cat", "1", "dog"]
  
# combining arrays
puts "combination of a and b : #{a + b}\n\n"
  
# combining arrays
puts "combination of a and c : #{a + c}\n\n"
  
# combining arrays
puts "combination of b and c : #{b + c}\n\n"

输出:

combination of a and b : ["abc", "xyz", "dog", "cow", "cat", "dog"]

combination of a and c : ["abc", "xyz", "dog", "cat", "1", "dog"]

combination of b and c : ["cow", "cat", "dog", "cat", "1", "dog"]