ruby and 语句_Ruby Break语句

迈不过友情╰ 2023-03-05 09:35 52阅读 0赞

ruby and 语句

## Ruby中的break语句 **(**break statement in Ruby**)** ##

In programming, loops are needed to be terminated properly otherwise it will result in an infinite loop. In ruby, when a certain condition is met, loops are terminated via **break statement**. The **break statement** is mostly used in while loop where the value is required to be printed till the condition comes out to be true.

在编程中，需要正确终止循环，否则将导致无限循环。 在ruby中，当满足特定条件时，循环将通过**break语句**终止。 **break语句**主要用于while循环中，在该循环中需要打印该值，直到条件变为真为止。

The basic purpose of **break statement** is to discontinue the loop and it is called from inside the loop.

**break语句**的基本目的是中断循环，并从循环内部调用它。

**Syntax:**

**句法：**

break

Now, let us understand the implementation of a **break statement in a Ruby** program with the help of program codes.

现在，让我们借助程序代码了解**Ruby**程序中**break语句**的实现。

**Example 1:**

**范例1：**

=begin
    Ruby program to demonstrate use of Break statement.
    =end
    
    puts "Enter the integer to calculate table"
    num = gets.chomp.to_i
    
    	j = 1
    
    	# Using While Loop 
    	while true
    
    		# Printing Values 
    		tab = j * num
    		puts "#{num} * #{j} = #{tab}"
    		j += 1
    		if j > 10
    
    			# Using Break Statement 
    			break
    		end		
    	end

**Output**

**输出量**

RUN 1:
    Enter the integer to calculate table
    12
    12 * 1 = 12
    12 * 2 = 24
    12 * 3 = 36
    12 * 4 = 48
    12 * 5 = 60
    12 * 6 = 72
    12 * 7 = 84
    12 * 8 = 96
    12 * 9 = 108
    12 * 10 = 120
    
    RUN 2:
    Enter the integer to calculate table
    9
    9 * 1 = 9
    9 * 2 = 18
    9 * 3 = 27
    9 * 4 = 36
    9 * 5 = 45
    9 * 6 = 54
    9 * 7 = 63
    9 * 8 = 72
    9 * 9 = 81
    9 * 10 = 90

**Code logic:**

**代码逻辑：**

In the above code, we are trying to demonstrate the significance of the **break statement**. We have written a code which is calculating the table of the number which is being provided by the user. We are giving a call to **break statement** inside ['if' condition][if_ condition] which is working inside the ['while' loop][while_ loop]. The **break statement** is working in the way that it is breaking the loop execution or you can say that it is terminating the loop when the value of **j** (loop variable) exceeds 10.

在上面的代码中，我们试图证明**break语句**的重要性。 我们编写了一个代码，用于计算用户提供的号码表。 我们正在['if'条件][if_ condition]内调用**break语句** ，该[条件][if_ condition]在['while'循环内运行][while_ loop] 。 **break语句**的工作方式是中断循环执行，或者可以说，当**j** (循环变量)的值超过10时，该**语句**终止循环。

**Example 2:**

**范例2：**

=begin
    Ruby program to demonstrate use of Break statement.
    =end
    
    k = 1
    
    # Using while 
    while true do
    
        # Printing Value 
        puts k * (k-1) 
        k += 1
        
        # Using Break Statement 
        break if k > 5
    end

**Output**

**输出量**

0
    2
    6
    12
    20

Here, the **break statement** is terminating loop when it finds the value of **'k'** is greater than 5.

在这里，当**break语句**发现**'k'**的值大于5时，它就是终止循环。

> 翻译自: [https://www.includehelp.com/ruby/break-statement.aspx][https_www.includehelp.com_ruby_break-statement.aspx]

ruby and 语句

[if_ condition]: https://www.includehelp.com/ruby/conditional-statements.aspx
[while_ loop]: https://www.includehelp.com/ruby/while-loop.aspx
[https_www.includehelp.com_ruby_break-statement.aspx]: https://www.includehelp.com/ruby/break-statement.aspx