Reverse for loop using range() Nested for loops While loop inside for loop for loop in one line Accessing the index in for loop Iterate String using for loop Iterate List using for loop Iterate Dictionary using for loop What is for loop in Python In Python, the for loop is used to iter...
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...
Also read:Python while loop Before we wrap up, let’s put your knowledge of Python for loop to the test! Can you solve the following challenge? Challenge: Write a function to calculate the factorial of a number. The factorial of a non-negative integernis the product of all positive intege...
Inside the while loop, the condition to be fulfilled is that the value of‘n’should always be greater than zero. Inside the loop, we add the value of‘n’to‘sum’and then decrement‘n’.While the value of‘n’will become zero, the while loop will stop executing and then print the...
Anytime you have need to repeat a block of code a fixed amount of times. If you do not know the number of times it must be repeated, use a “while loop” statement instead. For loop Python Syntax The basic syntax of the for loop in Python looks something similar to the one mentioned...
while (x < 5): print(x) x += 1 Output: 0 1 2 3 4 One thing we should remember that a while loop tests its condition before the body of the loop (block of program statements) is executed. If the initial test returns false, the body is not executed at all. For example the fol...
While Loop The while loop is one of the first loops that you'll probably encounter when you're starting to learn how to program. It is arguably also one of the most intuitive ones to understand: if you think of the name of this loop, you will quickly understand that the word "while"...
>>>number=5>>>whilenumber!=0:...print(number)...number-=2...531-1-3-5-7-9-11Traceback (most recent call last):...KeyboardInterrupt To terminate this code, you have to pressCtrl+C, which interrupts the program’s execution from the keyboard. Otherwise, the loop would run indefinit...
七、表达式while loop 八、表达式for loop 一、Python介绍及应用方向 python的创始人为吉多·范罗苏姆(Guido van Rossum)。 1989年的圣诞节期间,吉多·范罗苏姆为了在阿姆斯特丹打发时间,决心开发一个新的脚本解释程序,作为ABC语言的一种继承。 Python崇尚优美、清晰、简单,是一个优秀并广泛使用的语言。
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