Use the Python while loop statement to execute a code block as long as a condition is True.This allows you to enter the quit command such as quit, QUIT, or Quit.Įcho: quit Code language: Python ( python ) Summary Note that the command.lower() returns the command in lowercase format. The following example uses a while statement to show 5 numbers from 0 to 4 to the screen: max = 5 Let’s take some examples of using the Python while statement. It is possible to convert any for loop using the range() function in Python to a while loop. These aren’t named arguments, so specify only the values when working with range (). The range () function accepts one, two, or three arguments: start, stop, and step. It’s commonly used in for loops to iterate over a specific range of values. The following flowchart illustrates the while loop statement: As we can see, working with for loops in Python is a quick and easy way to repeat a block of statements a specific number of times using the range() function. The range () function in Python allows you to generate a sequence of numbers. In this tutorial, we will learn how to implement for loop for each of the above said collections. The sequence or collection could be Range, List, Tuple, Dictionary, Set or a String. ![]() If the condition is False from the beginning, the while statement will do nothing. Python For Loop can be used to iterate a set of statements once for each item of a sequence or collection. Otherwise, you’ll get an indefinite loop that will run forever until you close the application.īecause the while statement checks the condition at the beginning of each iteration, it’s called a pretest loop. Python for loop (with range, enumerate, zip, and more) Modified: Tags: Python. In the body of the loop, you need to do something to stop the loop at some time. It’ll execute the body as long as the condition is True. The while statement checks the condition at the beginning of each iteration. The condition is an expression that evaluates to a boolean value, either True or False. You can run Python for-loop using range with start and stop by pressing the run button. The following shows the syntax of the Python while statement: while condition: Python while statement allows you to execute a code block repeatedly as long as a condition is True. Introduction to the Python while statement When used in a for loop, range() provides a simple way. Summary: in this tutorial, you’ll learn about the Python while statement and how to use it to run a code block as long as a condition is true. The range() function generates a sequence of numbers from start up to stop, and increments by step.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |