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20 lines
391 B
20 lines
391 B
4 years ago
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l = [1, 2, 3, 4]
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s = set(l)
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outs = [s.difference(),
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s.difference({1}),
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s.difference({1}, [1, 2]),
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s.difference({1}, {1, 2}, {2, 3})]
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for out in outs:
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print(sorted(out))
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s = set(l)
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print(s.difference_update())
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print(sorted(s))
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print(s.difference_update({1}))
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print(sorted(s))
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print(s.difference_update({1}, [2]))
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print(sorted(s))
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s.difference_update(s)
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print(s)
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