Today we will learn about Python break and continue statements. In previous post, we learnt about .

今天，我们将学习Python break和continue语句。 在上一篇文章中，我们了解了 。

Python中断并继续 (Python Break and Continue)

Python break and continue statements are used only in loop. It helps to modify loop behaviour. Suppose you’re executing a loop, at one phase you need to terminate the loop or skip some statements then you need these statements.

Python break和continue语句仅在循环中使用。 它有助于修改循环行为。 假设您正在执行循环，在一个阶段中，您需要终止循环或跳过某些语句，然后需要这些语句。

Python中断 (Python break)

This statement is used to break the loop. Suppose you’re printing odd numbers using while loop. But you don’t need to print numbers greater than 10. Then you can write the following python code.

该语句用于中断循环。 假设您正在使用while循环打印奇数。 但是您不需要打印大于10的数字。那么您可以编写以下python代码。

number = 1 #Number is initially 1 while True : #This means the loop will continue infinite time        print (number) #print the number        number+=2 #calculate next odd number         # Now give the breaking condition        if number > 10:                break;                #Breaks the loop if number is greater than ten                print (number) #This statement won't be executed

Python break example output

Python Break示例输出

In the given example you will see that the statement(s) that are written after break, won’t be executed. So here, 11 will not be printed.

在给定的示例中，您将看到中断后编写的语句将不会执行。 因此，此处将不会打印11。

Python break statement can be used in for loop also. Suppose you are printing words from a list. If any words that matches with “exit” won’t be printed and the loop will terminate. The following python code illustrates the idea.

Python break语句也可以在for循环中使用。 假设您要从列表中打印单词。 如果任何与“ exit”匹配的单词都不会被打印，则循环将终止。 以下python代码说明了这一想法。

words = ["rain", "sun", "moon", "exit", "weather"] for word in words:        #checking for the breaking condition        if word == "exit" :                #if the condition is true, then break the loop                break;         #Otherwise, print the word        print (word)

Python break for example

以Python中断为例

Python继续 (Python continue)

Python continue statement is used to skip the statement of the loop and iterate to the next step. For example you’re printing number 1 to 10. You need to skip all statements at step 7. The following python code illustrates the scenario.

Python的continue语句用于跳过循环语句并迭代到下一步。 例如，您要打印数字1到10。您需要在步骤7跳过所有语句。以下python代码说明了这种情况。

numbers = range(1,11)'''the range(a,b) function creates a list of number 1 to (b-1)So, in this case it would generatenumbers from 1 to 10'''for number in numbers:        #check the skipping condition        if number == 7:                #this statement will be executed                print("7 is skipped")                continue                #this statement won't be executed                print ("This won't be printed")         #print the values        #for example:        #2 is double of 1        print (number*2),        print ("is double of"),        print (number)

Python continue example output

Python继续示例输出

Same thing you can do for while loop. Suppose, you are trying to print all the odd values from 1 to 10, then the python code which solves the problem would be:

您可以为while循环做同样的事情。 假设您尝试打印从1到10的所有奇数值，那么解决该问题的python代码将是：

numbers = [ 1, 2, 4, 3, 6, 5, 7, 10, 9 ]pos = 0 #initial position is onewhile pos < len(numbers):        #checking skipping condition if number is divisible by two, it is even        if numbers[pos] % 2 == 0 :                #increment the position by one                pos = pos + 1                continue        #print the odd number        print (numbers[pos])        #increment the position by one        pos = pos + 1

Python continue example while loop

Python在循环时继续示例

That’s all about python break and continue statement. Hope that you have learnt well. If you have any query about this topic, feel free to ask that in comment section.

这就是关于python break and Continue语句的全部内容。 希望你学得很好。 如果您对此主题有任何疑问，请随时在评论部分提出。

翻译自: