退出特定的while循环

Question

Can I break out of a nested while loop?

I have highlighted with yellow of what happens in my code. As can be seen, if the condition is true it breaks out and the first 'exit' line is executed.

Is there a way I can exit the last exit code (marked with blue ring)

Answer 1

Use a custom exception to break out.

class ExitLoop(Exception):
    pass

try:
    while True:
        while other:
            raise ExitLoop()
except ExitLoop:
    exit()

Answer 2

Instead of breaking in the inner loop, set a flag. At the outer loop break if flag is set.

flag = False
while True:
    if flag:
        break
    while otherCondition:
        try:
            flag = True
        except ValueError:
            print('oops')