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why is there a position exchange? 

Why is there an exchange of "(x, y) = (y, x) if x > y"? If there wasn't such an exchange, does it affect the calculation result if x > y ? Thank you for your time!
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JustinS618 2019-06-28 12:08:08 +08:00 committed by GitHub
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Day01-15/code/Day04/for5.py
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@ -8,8 +8,6 @@ Date: 2018-03-01
x = int(input('x = ')) x = int(input('x = '))
y = int(input('y = ')) y = int(input('y = '))
if x > y:
(x, y) = (y, x)
for factor in range(x, 0, -1): for factor in range(x, 0, -1):
if x % factor == 0 and y % factor == 0: if x % factor == 0 and y % factor == 0:
print('%d和%d的最大公约数是%d' % (x, y, factor)) print('%d和%d的最大公约数是%d' % (x, y, factor))