如果if语句未在循环内激活，是否有条件运行？

Question

Making a simple program that swaps the location of numbers in a loop until they are in ascending order. I want the program to end when the if conditional is never activated within a instance of the for loop. Is there a shorter way to do this without the use of a while true/false or like?

while tf == True:
    for i in range(lisLen-1):
        tf=False
        if listy[i]>listy[i+1]:
             tf=True
             swap(listy, i, i+1)

Answer 1

Get rid of the variable, and use break instead. Then you can use the else: clause to test this. That clause runs if the loop ended normally instead of with break .

while True:
    for i in range(lisLen-1):
        if listy[i]>listy[i+1]:
            swap(listy, i, i+1)
            break
    else:
        break