1. 循环(Loop) 循环用于重复执行一段代码,直到满足特定的终止条件。常见的循环结构包括 for 循环、while 循环和 do...while 循环。 代码示例 for 循环 for 循环通常用于已知循环次数的情况。 python # 计算1到10的和 total = 0 for i in range(1, 11): total += i print(
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...
The while Loop With thewhileloop we can execute a set of statements as long as a condition is true. ExampleGet your own Python Server Print i as long as i is less than 6: i =1 whilei <6: print(i) i +=1 Try it Yourself »...
Python while Loops: Repeating Tasks Conditionally In this quiz, you'll test your understanding of Python's while loop. This loop allows you to execute a block of code repeatedly as long as a given condition remains true. Understanding how to use while loops effectively is a crucial skill fo...
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. ...
While loop 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...
Python中使用while循环的核心方法包括:设定循环条件、确保循环条件会在循环内部得到更新、使用break语句控制循环中断、使用continue语句跳过当前循环并进入下一次迭代。这些方法可以有效地控制循环执行的逻辑和次数。 1. 设定循环条件是while循环的基础,通过设定一个初始值和循环条件,可以控制循环的执行。例如: ...
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...
If the condition of a while loop is always true or the variables within the loop do not update correctly, it may result in an infinite loop. An example of an infinite loop is: while True: # Infinite loop, no break condition Powered By In Python, you can use the break statement to ...
while loop-continuation-condition: # Loop body Statement(s) 当loop-continuation-condition为True时,则重复执行while中的语句,直到loop-continuation-condition为False时为止。 使用while语句 current_number = 1 # 当current_number 大于4时,则退出while循环 # 否则就循环打印当前数字 while current_number <= 4:...