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...
If the condition is true, then the loop executes. Otherwise, it terminates. while loops are useful when the number of iterations is unknown, such as waiting for a condition to change or continuously processing user input. while True in Python creates an infinite loop that continues until a ...
The basic loop structure in Python is while loop. Here is the syntax.Syntax:while (expression) : statement_1 statement_2 ...The while loop runs as long as the expression (condition) evaluates to True and execute the program block. The condition is checked every time at the beginning of ...
The infinite loop is a special kind of while loop; it never stops running. Its condition always remains True. 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...
While Loop In Python,whileloops are constructed like so: while[a conditionisTrue]:[do something] Copy The something that is being done will continue to be executed until the condition that is being assessed is no longer true. Let’s create a small program that executes awhileloop. In this...
The While Loop In Python The while loop statement is used to repeat a block of code till a condition is fulfilled. When we don’t know the exact number of times, a loop statement has to be executed. We make use of while loops. This way, till the test expression holds true, the loo...
Python While 6 Here, we’re telling Python to break, or stop, the loop when counter is 2. Question:Why does it print each thing three times though? Answer:Look at where we do the test. We test counter after we do all of our print statements. If you put the condition in the head...
2. 不支持while循环结构:while (condition) do xxx;且xxx也需要支持BEGIN...END的循环体结构。 3. 循环不支持break和continue。 本章就来解决以上问题。 二、实现方法 (一)for支持BEGIN...END循环体 首先来写一个,FOR循环同时含有BEGIN...END和不含有BEGIN...END的循环体测试程序: program forLoop; var a...
Python will again move back to the condition of the while loop and attempt to re-run the code. Because 3.125 is greater than 1, the code makes the calculation. Finally, the new condition of the while loop is less than 1, so the code results in an error and won't run. ...
A while loop is a programming concept that, when it's implemented, executes a piece of code over and over again while a given condition still holds true. The above definition also highlights the three components that you need to construct the while loop in Python: The while keyword; A cond...