创建一个条件语句片段(IfStatement)对象,并将其关联到代码片段对象。 创建一个循环语句片段(WhileLoop)对象,并将其关联到代码片段对象。 创建一个跳出循环语句片段(BreakStatement)对象,并将其关联到代码片段对象。 创建一个打印语句片段(PrintStatement)对象,并将其关联到代码片段对象。 创建一个Python对象,并将代码片...
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 loop and the first time when the expression evaluates to False, the loop stops without executing any remaining statement(s). ...
while循环在给定条件为真时重复执行代码块。 语法 while condition: # 执行代码块 1. 2. 简单的计数循环 count = 0 while count < 5: print(count) count += 1 1. 2. 3. 4. 输出: 0 1 2 3 4 1. 2. 3. 4. 5. 无限循环(需要手动停止,如使用break语句) while True: user_input = input("...
The program checks if the number is 0 and returns 1(factorial of 0 is 1). Then thewhile loopchecks the condition (n >=1) to see if our n is equal to 1 or greater than 1. Each time when this condition is TRUE, our program computes the formula in the loop block Let’s use the...
字符串类型(string) 布尔类型(Boolean) ⑤条件语句(conditional statement) 形式一: if condition: statement else: statement 形式二: if condition1: statement1 elif condition2: statement2 elif condition3: statement3 else: statement4 ⑥循环语句(loop statement) 形式一: while cond...
while循环 在条件为真时重复执行代码块。 一旦条件为假,循环终止。 示例: whilecondition:# 代码 循环控制语句 break:用于立即退出循环。 continue:跳过当前迭代的剩余部分,直接开始下一个迭代。 else:只有在循环未被break语句终止的情况下执行。 示例:
Overview of While Loop in Python The While Loop is a type of entry-level control statement that can be used for executing a set of program code repeatedly based on a condition set for the loop. This conditional statement starts with the ‘While’ keyword and a condition next to it, follow...
Break statement with for loop The break statement is used to exit the for loop prematurely. It’s used to break the for loop when a specific condition is met. Let’s say we have a list of numbers and we want to check if a number is present or not. We can iterate over the list ...
When the condition is false, the loop terminates and subsequent statements indented at the same level as while are executed.如果通过 while 实现一个计数循环，需要在循环之前对计数器 idx 进行初始化，并在每次循环中对计数器 idx 进行累加，而在for循环中循环变量逐一取自遍历结构，不需要程序维护计数器。I...
The While statement is a type of loop statement. If the condition is met, the internal instruction is executed until the condition is not met. If the condition is not met, the internal instruction is not executed. Here is a piece of code to guess the number. To obtain random numbers, ...