在Python 中,我们至少有五种跳出嵌套循环break out of nested loops的可行方法。它们都不如 PHP 的方法优雅,但至少我们可以实现这一操作。幸运的是,如果我们能借助itertools.product函数将嵌套循环nested loops转换为更简单的循环simpler loop,我们就不必使用嵌套循环nested loops了。
def nested_loop(): i = 0 while i < 3: j = 0 while j < 3: if i == 1 and j == 1: return # 退出所有循环 print(f"i = {i}, j = {j}") j += 1 i += 1 nested_loop() 或者使用抛出异常的方法: python class GetOutOfLoop(Exception): pass try: for i in range...
Breaking Out of Nested LoopsIn some cases, you may encounter nested loops, where one for loop is inside another. Exiting from a nested loop can be a bit tricky, but it’s entirely manageable with the break statement.Consider the following example:...
If you have loop within loop i.e nested loop, the break will breaking out of the nested loop.If we want to breaking out multiple innermost loops, so we can use control structures including return statement or flags.Break statement allowing to add flexibility in the loop....
# if the character is equal to 'i', terminate the nested for loop print('break\n') break Out: T h i break i break a l i break Learn Data Science with For any strings that contain ani,breakexits ourfor char in string:loop. As this is our inner-most loop, Python then moves onto...
Like other programming languages, in Python, break statement is used to terminate the loop's execution. It terminates the loop's execution and transfers the control to the statement written after the loop.If there is a loop inside another loop (nested loop), and break statement is used ...
The break statement can also be used to break out of nested loops. When a break statement is used inside a nested loop, only the innermost loop is terminated.For example, the following code uses two nested loops to search for a specific value in a two-dimensional array:...
The break statement in Python terminates the nearest enclosing loop prematurely. This tutorial explains how to use break to exit loops, demonstrates nested loop scenarios, and provides practical examples of flow control. When executed, break immediately stops loop iteration and transfers execution to ...
Python break statement The break statement terminates the loop containing it. Control of the program flows to the statement immediately after the body of the loop. If break statement is inside a nested loop (loop inside another loop), break will terminate the innermost loop. ...
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