Ruby 数组类each()操作

Array#each() : each()是一个数组类的方法，通过对自我中的每个元素按照给定块中的条件进行一次返回数组。
语法。 Array.each()

参数：block – 要遵循的条件

返回。跟随条件的每个数组元素

代码 #1 : each()方法的例子

# Ruby code for each() method
  
# declaring array
a = ["abc", "nil", "dog"]
  
# declaring array
b = ["hello", "hi", "dog"]
  
# each
puts "each : #{a.each {|x| print x, " -- "}}\n\n"

输出:

abc -- nil -- dog -- each : ["abc", "nil", "dog"]

代码 #2 : each()方法的例子

# Ruby code for each() method
  
# declaring array
a = ["abc", "nil", "dog"]
  
# declaring array
b = ["hello", "hi", "dog"]
  
  
# each
puts "each : #{b.each{|x| x = 2}}\n\n"
     ```  

输出:
```ruby 
each : ["hello", "hi", "dog"]