Here, the condition of the while loop is alwaysTrue. However, if the user entersend, the loop termiantes because of thebreakstatement. Pythonwhileloop with anelseclause In Python, awhileloop can have an optionalelseclause - that is executed once the loop condition isFalse. For example, coun...
Sometimes we want a part of the code to keep running, again and again, until we are ready for it to stop. Let’s see how while loops can help us do this! Python While 1 Run the example: In this code, we import time so we can use a “wait” function called sleep() . Then, ...
Example: while loop with if-else and break statementx = 1; s = 0 while (x < 10): s = s + x x = x + 1 if (x == 5): break else : print('The sum of first 9 integers : ',s) print('The sum of ',x,' numbers is :',s) CopyOutput:The sum of 5 numbers is : 10...
Example Print a message once the condition is false: i =1 whilei <6: print(i) i +=1 else: print("i is no longer less than 6") Try it Yourself » Exercise? Which statement is a correct syntax to break out of a loop?
An example of an infinite loop: while 1==1: print("In the loop") This program would indefinitely print "In the loop". You can stop the program's execution by using the Ctrl-C shortcut or by closing the program. 无限循环是一种特殊的while循环;它从不停止运行。它的条件总是正确的。
Example of While Loop Error (Continuously Running) Suppose you were to comment out or remove the error value's updates and rerun the script. The error won't be updated, and the condition will always be true. This will result in the while loop running forever. ...
Example #1: Infinite loop using while # An example of infinite loop# press Ctrl + c to exit from the loopwhileTrue: num = int(input("Enter an integer: "))print("The double of",num,"is",2* num) Output Enter an integer: 3
A block of code that you want to execute repeatedly That's all it takes! How To Make A While Loop in Python Now that you know what you need to construct a while loop, all that is left to do now is to look at a real-life example where the while loop is used before you start ...
Suppose you write a while loop that never ends due to an internal error. Getting back to the example in the initial section of this tutorial, you have the following loop that runs continuously: Python >>> number = 5 >>> while number != 0: ... print(number) ... number -= 2...
x =1while(x<=3):print(x) x = x+1 Output: 1 2 3 In the above example we first assigned the value 1 to the variable x, then we constructed a while loop which will run until the value of x is less than or equal to 3. ...