ruby推送示例_Ruby直到示例循环

左手的ㄟ右手 2023-03-05 09:39 11阅读 0赞

ruby推送示例

## 直到循环 **(**The until loop**)** ##

The **until loop** is one of the great features of Ruby which makes it different from other programming languages. The support of until loop specifies how much user-friendly language Ruby is?

**直到循环**是Ruby的重要功能之一，这使其与其他编程语言有所不同。 对直到循环的支持指定了Ruby用户友好语言是多少？

The **until loop** is just the opposite of [while loop][] if we justify it in terms of functionality. [while loop][] is executed as long as the Boolean condition stands to be false but in case of **until loop**, it executes as long as the Boolean condition does not come out to be true. It is the example of the entry-control loop where the specified condition is checked prior to the execution of the loop's body.

如果我们从功能上证明它，则**直到循环**与[while循环][while loop]正好相反。 [while循环][while loop]是只要布尔条件成立的情况是假的，但**直到循环**的情况下执行，因为布尔条件不出来是真实的它执行长。 这是进入控制循环的示例，其中在执行循环主体之前检查指定的条件。

The **until loop** is implemented with the help of the following syntax:

使用以下语法可以实现**直到循环** ：

until conditional [do]
            # code to be executed
        end

**Example 1:**

**范例1：**

=begin 
    Ruby program to print a message 10 times using until loop
    =end
    
    num=0
    
    until num==10
        puts "Hello there! Message from Includehelp.com! Happy learning!"
        num=num+1
    end

**Output**

**输出量**

Hello there! Message from Includehelp.com! Happy learning!
    Hello there! Message from Includehelp.com! Happy learning!
    Hello there! Message from Includehelp.com! Happy learning!
    Hello there! Message from Includehelp.com! Happy learning!
    Hello there! Message from Includehelp.com! Happy learning!
    Hello there! Message from Includehelp.com! Happy learning!
    Hello there! Message from Includehelp.com! Happy learning!
    Hello there! Message from Includehelp.com! Happy learning!
    Hello there! Message from Includehelp.com! Happy learning!
    Hello there! Message from Includehelp.com! Happy learning!

**Example 2:**

**范例2：**

=begin 
    Ruby program to find the sum of all 
    digits of given number using until loop
    =end
    
    puts "Enter the number"
    num=gets.chomp.to_i
    
    temp=num
    sum = 0
    
    until num==0
    	#implementation of until loop
    	rem=num%10
    	num=num/10
    	sum=sum+rem
    end
    
    puts "The sum of #{temp} is #{
        sum}"

**Output**

**输出量**

Enter the number
    456672
    The sum of 456672 is 30

**Example 3:**

**范例3：**

=begin 
    Ruby program to find the count of even 
    and odd digits in the given number 
    using until loop
    =end
    
    puts "Enter the number"
    num=gets.chomp.to_i
    
    temp=num
    evecount=0
    oddcount=0
    
    until num==0
    	#implementation of until loop
    	rem=num%10
    	num=num/10
    	if rem%2==0
    		puts "#{rem} is even"
    		evecount+=1
    	else
    		puts "#{rem} is odd"
    		oddcount+=1
    	end
    end
    
    puts "Number of even numbers are #{evecount}"
    puts "Number of odd numbers are #{oddcount}"

**Output**

**输出量**

Enter the number
    7896532
    2 is even
    3 is odd
    5 is odd
    6 is even
    9 is odd
    8 is even
    7 is odd
    Number of even numbers are 3
    Number of odd numbers are 4

> 翻译自: [https://www.includehelp.com/ruby/until-loop.aspx][https_www.includehelp.com_ruby_until-loop.aspx]

ruby推送示例

[while loop]: https://www.includehelp.com/ruby/while-loop.aspx
[https_www.includehelp.com_ruby_until-loop.aspx]: https://www.includehelp.com/ruby/until-loop.aspx