while迴圈是你編寫程式語言的得力助手,有了while迴圈你可以讓Python依照你設定的條件執行指定的事。 對初學者而言,while迴圈可能不是很好懂的語法,透過實作練習觀念才會慢慢融會貫通,如果想透由小型專題練習,熟悉Python while 迴圈,推薦使用《Python 自動化的樂趣(第2版)》,在學習如何設計猜數字、剪刀石頭布的遊戲...
A Python if statement in the body of the loop will evaluate signals and potentially terminate the connection, if called for: while connection_open(): print('Ready to receive') process_messages() if should_close_connection(): close_connection() # once loop terminates print('Connection was ...
这个过程一直持续到test_expression评估结果为False为止。 在Python中,while循环的主体是通过缩进确定的。 主体以缩进开始,第一条未缩进的线标记结束。 Python将任何非零值解释为True。None并且0被解释为False。 While循环流程图 Python中while循环的流程图 示例:Python while循环 示例 # 添加自然数的程序# 数字最多# ...
In the above example the loop is terminated when x becomes 5. Here we use break statement to terminate the while loop without completing it, therefore program control goes to outside the while - else structure and execute the next print statement. Flowchart: Previous:Python For Loop Next:Pytho...
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: while [a condition is True]: [do something]Copy The condition we provide to the while statement is the controlling expression, ...
In Python, we use awhileloop to repeat a block of code until a certain condition is met. For example, number =1whilenumber <=3:print(number) number = number +1 Output 1 2 3 In the above example, we have used awhileloop to print the numbers from1to3. The loop runs as long as...
解决While loop问题 - Python 当我们在使用while循环时,需要确保循环的终止条件最终会被满足,否则循环将会无限执行下去。通常情况下,我们可以在循环内部修改循环控制变量,使得终止条件得以满足。 1、问题背景 一位开发者在使用 Python 开发一个基于文本的游戏时,遇到了 while 循环的问题。他将游戏代码和音频处理代码...
Explore how to emulate a "do-while" loop in Python with our short tutorial. Plus discover how to use it in data science tasks.
Python 编程中 while 语句用于循环执行程序,即在某条件下,循环执行某段程序,以处理需要重复处理的相同任务。其基本形式为: while判断条件(condition):执行语句(statements)…… 执行语句可以是单个语句或语句块。判断条件可以是任何表达式,任何非零、或非空(null)的值均为true。
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...