So it gets out of the loop at the very first time.# the function can be like thisdef func(val): while True: num = int(input("Enter a number:")) if num < val: print ("Too low!") ...
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...
while expression: statement(s) 1. 2. while loop - 流程图 在这里,while循环的关键点是循环可能永远不会运行。当测试条件并且输出为false时,将跳过循环体,并执行while循环后的第一个语句。 while loop - 示例 #!/usr/bin/python count=0 while (count < 9): print 'The count is:', count count=coun...
Python Copy # Create the variable for user input user_input = '' # Create the list to store the values inputs = [] # The while loop while user_input.lower() != 'done': # Check if there's a value in user_input if user_input: # Store the value in the list inputs.append(...
In Python, a basic while loop looks like this: while[a conditionisTrue]: [do something] The condition we provide to the while statement is the controlling expression, our loop will run until the controlling statement is no longer true. ...
在Python中,要中断函数内的while循环,可以使用break语句。break语句用于跳出当前循环,不再执行循环中剩余的代码,直接执行循环后的代码。 以下是一个示例代码: 代码语言:txt 复制 def my_function(): while True: # 循环体 user_input = input("请输入命令:") if user_input == "exit": break # 其他处理逻...
译自How (and When) to Use a Python While Loop,作者 Jack Wallen。 While 循环是编程的一个基本要素。While循环所做的是继续执行一条语句(或一组语句),直到满足特定条件。一个显而易见的例子(许多人都会理解)可能是这样的:只要我的银行账户有钱,我就可以买东西。
1、死循环学会用法 a = 1 while True: print(a) a +=1 2、无限次输入，直到输对，...
Related Topics:basicspython Recommended Video Course:Mastering While Loops Related Tutorials: Python "for" Loops (Definite Iteration) Conditional Statements in Python Python Exceptions: An Introduction Defining Your Own Python Function Dictionaries in Python...
Python while loops can be used to repeatedly execute blocks of code when the number of iterations isn’t known at the time of writing. We explain how.