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
While Loop In Python A while statement iterates a block of code till the controlling expression evaluates to True. While loop favors indefinite iteration, which means we don't specify how many times the loop will run in advance. In Python, a basic while loop looks like this: ...
The Python while loop can be used to execute a block of code for as long as a certain condition is fulfilled. While loops are primarily used in Python when the number of iterations can’t be determined at the time of writing the code. Keep reading to find out how the Python while loop...
The loop is ended 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...
While-loop语法解释 While-loop是一种常见的编程语言结构,用于重复执行一段代码,直到指定的条件不再满足为止。它的语法通常由一个循环条件和一个代码块组成。 循环条件是一个布尔表达式,用于判断是否继续执行循环。如果循环条件为真(true),则代码块会被执行;如果循环条件为假(false),则循环结束,程序会继续执行循环...
Loops are used to repeatedly execute a block of program statements. 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...
在Python中,用户输入与while循环的结合使用能够实现一些强大的功能,比如创建交互式程序、用户驱动的循环等。下面我们就来详细解析这两个知识点。首先,我们需要理解Python中的用户输入。...Python提供了一个内置函数 input(),它可以让程序暂停运行,等待用户输入一些文本
如果你對for迴圈或if陳述句不熟悉,可以閱讀〈Python for 迴圈(loop)的基本認識與7種操作〉、〈Python if 陳述句的基礎與3種操作〉。 Python while 迴圈句基本認識 先來看一個簡單的while迴圈。 例子是這樣的,你要用Python印出1到100。你可以設定一個變數i,並在while後頭陳述符合需求的條件,條件是只要i小於...
Python # Create the variable for user inputuser_input =''# Create the list to store the valuesinputs = []# The while loopwhileuser_input.lower() !='done':# Check if there's a value in user_inputifuser_input:# Store the value in the listinputs.append(user_input)# Prompt for a...
在python中，while是用来处理循环结构的，基本语法为：while条件成立后执行的语句块，由于while循环语句的条件部分为True，即永远成立，所以会不断的执行while循环的语句体。while循环语句部分，由于每次回到while的条件部分得到的都是成立的结果，所以会一直输出 0, 1, 2...就这样一直输出，不会停止。当然while True...