22 lines
388 B
Python
22 lines
388 B
Python
|
def report(s):
|
||
|
|
l = list(s)
|
||
|
|
l.sort()
|
||
|
|
print(l)
|
||
|
|
|
||
|
|
l = [1, 2, 3, 4]
|
||
|
|
s = set(l)
|
||
|
|
outs = [s.difference(),
|
||
|
|
s.difference({1}),
|
||
|
|
s.difference({1}, [1, 2]),
|
||
|
|
s.difference({1}, {1, 2}, {2, 3})]
|
||
|
|
for out in outs:
|
||
|
|
report(out)
|
||
|
|
|
||
|
|
s = set(l)
|
||
|
|
print(s.difference_update())
|
||
|
|
report(s)
|
||
|
|
print(s.difference_update({1}))
|
||
|
|
report(s)
|
||
|
|
print(s.difference_update({1}, [2]))
|
||
|
|
report(s)
|