ruby中!!_Ruby反向！功能

Love The Way You Lie 2023-03-05 09:41 20阅读 0赞

ruby中!!

## 逆转！ Ruby中的功能 **(**reverse! function in Ruby**)** ##

As the name suggests, **reverse! function** is used to reverse the elements of an array. Most of the times, we need to reverse an array but if we do it with the help of loops, the program will become quite lengthy and time-consuming. Ruby facilitates you with **reverse! function** which produces the reverse of the array. Unlike, [reverse function in Ruby][], **reverse! produces** changes in the original array itself. It also returns the reverse of the array which can be stored in the corresponding new array for the fulfillment of future operations.

顾名思义， **反向！** **函数**用于反转数组的元素。 在大多数情况下，我们需要反转数组，但是如果在循环的帮助下完成该程序，则该程序将变得相当冗长且耗时。 Ruby为您提供**反向帮助！** **函数**产生与数组相反的结果。 与[Ruby中的反向功能][reverse function in Ruby]不同， **反向！** 在原始数组本身中**产生**更改。 它还返回数组的倒序，可以将其存储在相应的新数组中，以实现将来的操作。

**Syntax:**

**句法：**

Array_name.reverse!

Now, let us understand the implementation concept in a much broader way with the help of program codes.

现在，让我们借助程序代码以更广泛的方式理解实现概念。

**Example 1:**

**范例1：**

=begin
    Ruby program to demonstrate implementation of reverse! function
    =end
    
    # Initializing some arrays of elements 
    Arr1 = ["apple", "mango", "banana", "apricot", "plum", "cherry"] 
    Arr2 = ["one","two", "three", "four", "five"] 
    Arr3 = [10,20] 
    Arr4 = [110, 210, 310, 410, 510] 
    Arr5 = ["C++", "Java", "C#", "Visual Basic", "Perl", "Python"]
    Arr6 = ["Hrithik", "Satyam", "Amisha", "Kajal", "Wamp"] 
    
    # Invoking reverse! function 
    NewArr1 = Arr1.reverse!
    NewArr2 = Arr2.reverse!
    NewArr3 = Arr3.reverse!
    NewArr4 = Arr4.reverse! 
    NewArr5 = Arr5.reverse!
    NewArr6 = Arr6.reverse!
    
    # Printing the the corresponding arrays 
    puts "#{NewArr1}"
    puts "#{NewArr2}"
    puts "#{NewArr3}"
    puts "#{NewArr4}"
    puts "#{NewArr5}"
    puts "#{NewArr6}"

**Output**

**输出量**

["cherry", "plum", "apricot", "banana", "mango", "apple"]
    ["five", "four", "three", "two", "one"]
    [20, 10]
    [510, 410, 310, 210, 110]
    ["Python", "Perl", "Visual Basic", "C#", "Java", "C++"]
    ["Wamp", "Kajal", "Amisha", "Satyam", "Hrithik"]

**Code logic:**

**代码逻辑：**

In the above code, we have initialized six arrays. We are reversing them with the help of **reverse! statement** and storing the returned array in a new corresponding array. Eventually, we are printing the corresponding new arrays.

在上面的代码中，我们已经初始化了六个数组。 我们正在反转的帮助下反转它们**！** **语句**并将返回的数组存储在新的对应数组中。 最终，我们将打印相应的新数组。

Now, let us see verify whether **reverse! function** produces changes in the original array or not.

现在，让我们看看是否可以**逆转！** **函数是否**在原始数组中产生更改。

**Example 2:**

**范例2：**

=begin
    Ruby program to demonstrate implementation of reverse! function
    =end
    
    # Initializing some arrays of elements 
    Arr1 = ["apple", "mango", "banana", "apricot", "plum", "cherry"] 
    Arr2 = ["one","two", "three", "four", "five"] 
    Arr3 = [10,20] 
    Arr4 = [110, 210, 310, 410, 510] 
    Arr5 = ["C++", "Java", "C#", "Visual Basic", "Perl", "Python"]
    Arr6 = ["Hrithik", "Satyam", "Amisha", "Kajal", "Wamp"] 
    
    # Invoking reverse! function 
    NewArr1 = Arr1.reverse!
    NewArr2 = Arr2.reverse!
    NewArr3 = Arr3.reverse!
    NewArr4 = Arr4.reverse! 
    NewArr5 = Arr5.reverse!
    NewArr6 = Arr6.reverse!
    
    # Printing the the corresponding arrays 
    puts "#{Arr1}"
    puts "#{Arr2}"
    puts "#{Arr3}"
    puts "#{Arr4}"
    puts "#{Arr5}"
    puts "#{Arr6}"

**Output**

**输出量**

**Code Logic:**

**代码逻辑：**

In the above code, we have tried to show that **reverse! function** produces changes in the original array as well with the help of ‘puts’ statement through which we are printing the arrays.

在上面的代码中，我们试图证明这种**相反！** **函数**会在原始数组中产生更改，并借助“ puts”语句来打印数组。

> 翻译自: [https://www.includehelp.com/ruby/reverse-1-function.aspx][https_www.includehelp.com_ruby_reverse-1-function.aspx]

ruby中!!

[reverse function in Ruby]: https://www.includehelp.com/ruby/reverse-function.aspx
[https_www.includehelp.com_ruby_reverse-1-function.aspx]: https://www.includehelp.com/ruby/reverse-1-function.aspx