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HTTP/2 200 date: Thu, 23 Jul 2026 12:52:13 GMT content-type: text/html server: nginx vary: Accept-Encoding x-frame-options: SAMEORIGIN strict-transport-security: max-age=31536000 content-encoding: gzip ?m?????IPython?n?W???̗v?f?𑀍삷??ɂ́F?????IPython - ??IT

?m?????IPython?n?W???̗v?f?𑀍삷??ɂ??F?????IPython

?W???̗v?f???𒲂ׂ???A?W???ƏW???̕?܊֌W?𒲂ׂ???A?W???ƏW??????a?^???^?????^?Ώ̍?????Ȃ?V???ȏW???𓾂??肷????@???Љ??B

» 2023?N05??09?? 05??00?? ???J

[???킳???????CDeep Insider?ҏW??]

???̋L???͉??????ł??B????o?^?i?????j????ƑS?Ă????????????܂??B

?A?ږڎ?

# s?̗v?f???𒲂ׂ?
s = {0, 1, 2, 3}
l = len(s)
print(l) # 4

# s?ɗv?fx???܂܂?Ă??邩?ǂ????𒲂ׂ?
print(1 in s) # True
print(5 in s) # False

# s?ɗv?fx???܂܂?Ă??Ȃ??????ǂ????𒲂ׂ? x not in s
print(1 not in s) # False
print(5 not in s) # True

# s1??s2???????i?v?f?݂̂??܂?ł???j???ǂ????𒲂ׂ?
s1, s2 = {0, 1, 2}, {0, 1, 2}
print(s1 == s2) # True

# s1??s2???قȂ邩?ǂ????𒲂ׂ?
s1, s2 = {0, 1, 2}, {0, 1, 3}
print(s1 != s2) # True

# s1??s2???݂??ɑf???ǂ????𒲂ׂ?
s1, s2 = {0, 1, 2}, {3, 4, 5}
print(s1.isdisjoint(s2)) # True

s1, s2 = {0, 1, 2}, {2, 3, 4}
print(s1.isdisjoint(s2)) # False

# ?ǂ??炩?̏W????????????̏W???ɕ?܂???邩?ǂ????𒲂ׂ?
s1, s2 = {0, 1, 2, 3}, {0, 2}
print(s1.issubset(s2)) # False
print(s2.issubset(s1)) # True
print(s2 <= s1) # True

s1, s2 = {0, 1, 2}, {0, 1, 2}
print(s1 <= s2) # True

# s1??s2?̐^?????W?????ǂ????𒲂ׂ?
s1, s2 = {0, 1, 2}, {0, 1, 2, 3}
print(s1 < s2) # True

s1, s2 = {0, 1, 2}, {0, 1, 2}
print(s1 < s2) # False

# ?ǂ??炩?̏W????????????̏W?????܂??邩?ǂ????𒲂ׂ?
s1, s2 = {0, 1, 2, 3}, {0, 1, 2}
print(s1.issuperset(s2)) # True
print(s2.issuperset(s1)) # False
print(s1 >= s2) # True

s1, s2 = {0, 1, 2}, {0, 1, 2}
print(s1 >= s2) # True

# s1??s2?̐^??ʏW?????ǂ????𒲂ׂ?
s1, s2 = {0, 1, 2, 3}, {0, 1, 2}
print(s1 > s2) # True

s1, s2 = {0, 1, 2}, {0, 1, 2}
print(s1 > s2) # False

# s1??s2?̘a????Ȃ?W?????쐬????
s1, s2 = {0, 1, 2}, {1, 2, 3}
result = s1.union(s2)
print(result) # {0, 1, 2, 3}
print(s1) # {0, 1, 2}

result = s1 | s2
print(result) # {0, 1, 2, 3}
print(s1) # {0, 1, 2}

s3 = {3, 4, 5}
result = s1 | s2 | s3
print(result) # {0, 1, 2, 3, 4, 5}

# s1??s2?̍?????Ȃ?W?????쐬????
s1, s2 = {0, 1, 2, 3, 4, 5}, {1, 3, 5}
diff = s1.difference(s2)
print(diff) # {0, 2, 4}

s1, s2 = {0, 1, 2, 3, 4, 5}, {0, 2, 4}
diff = s1 - s2
print(diff) # {1, 3, 5}

# s1??s2?̌???????Ȃ?W?????쐬????
s1, s2 = {0, 1, 2, 3}, {2, 3, 4, 5}
intersection = s1.intersection(s2)
print(intersection) # {2, 3}
intersection = s1 & s2
print(intersection) # {2, 3}

# s1??s2?̑Ώ̍?????Ȃ?W?????쐬????
s1, s2 = {0, 1, 2, 3, 4, 5}, {3, 4, 5, 6, 7, 8}
symdiff = s1.symmetric_difference(s2)
print(symdiff) # {0, 1, 2, 6, 7, 8}

s1, s2 = {0, 1, 2, 3, 4, 5}, {4, 5, 6, 7, 8, 9}
symdiff = s1 ^ s2
print(symdiff) # {0, 1, 2, 3, 6, 7, 8, 9}

?W???ɑ΂??鑀??

?@?ȉ??ɏW???ōs????e?푀????ꗗ????B?\???ɏo?Ă???s?^s1?^s2?͑S?ĉ??炩?̗v?f???܂񂾏W???I?u?W?F?N?g?Ƃ???B


????	???\?b?h?^???Z?q
s?̗v?f???𒲂ׂ?	len(s)
s?ɗv?fx???܂܂?Ă??邩?ǂ????𒲂ׂ?	x in s
s?ɗv?fx???܂܂?Ă??Ȃ??????ǂ????𒲂ׂ?	x not in s
s1??s2???????i?v?f?݂̂??܂?ł???j???ǂ????𒲂ׂ?	s1 == s2
s1??s2???قȂ邩?ǂ????𒲂ׂ?	s1 != s2
s1??s2???݂??ɑf???ǂ????𒲂ׂ?	s1.isdisjoint(s2)
s1??s2?ɕ?܂???邩?ǂ????𒲂ׂ?	s1.issubset(s2) s1 <= s2
s1??s2?̐^?????W?????ǂ????𒲂ׂ?	s1 < s2
s1??s2???܂??邩?ǂ????𒲂ׂ?	s1.issuperset(s2) s1 >= s2
s1??s2?̐^??ʏW?????ǂ????𒲂ׂ?	s1 > s2
s1??s2?̘a?W?????쐬????	s1.union(s2) s1 \| s2
s1??s2?̌??????쐬????	s1.intersection(s2) s1 & s2
s1????s2?̗v?f???폜???????W?????쐬????	s1.difference(s2) s1 - s2
s1??s2?̑Ώ̍??W?????쐬????	s1.symmetric_difference(s2) s1 ^ s2
?W???ɑ΂??鑀??

?@?ȉ??ł́A?????̑????????̕???ɕ????Č??Ă????B

??{

?@???X?g?Ȃǂ̔????\?I?u?W?F?N?g?Ɠ??l?ɁA?W???̗v?f????len?֐??Œ??ׂ???B?܂??A????̗v?f???W???Ɋ܂܂?Ă??邩?^?܂܂?Ă??Ȃ?????in???Z?q?^not in???Z?q?Œ??ׂ???B2?̏W???????????i?????v?f???????܂?ł??邩?j?ǂ?????==???Z?q??!=???Z?q?Œ??ׂ???B

?@?ȉ??ɗ???????B

??܊֌W?̃`?F?b?N

?@????W??s1??s2?????????Ƃ???ƁA?????ɂ͕?܊֌W?????藧???Ƃ?????B?W??s1?̗v?f???W??s2?̗v?f?ƑS???????ł???΁A?????̏W???͓??????B

?@?܂??A?W??s1???W??s2?̑S?Ă̗v?f???܂?ł???΁A?W??s1?͏W??s2???u??܁v???Ă???B???̂Ƃ??A?W??s1?͏W??s2?́u??ʏW???v?isuperset?j?ł???A?W??s2?͏W??s1?́u?????W???v?isubset?j?ł???B????ɏW??s1?ɂ͏W??s2?Ɋ܂܂?Ă??Ȃ??v?f??????̂ł???΁A?W??s1?͏W??s2?́u?^??ʏW???v?ł???A?W??s2?͏W??s1?́u?^?????W???v?ƂȂ?B

?@????A?W??s1?ƏW??s2?̊Ԃŋ??ʂ???v?f??1???Ȃ??悤?ȏꍇ?A?????̏W???́u?݂??ɑf?v?Ƃ????B???̂悤?ȏW?????m?̊֌W?𒲂ׂ邽?߂?Python?ł͈ȉ??̂悤?ȃ??\?b?h????щ??Z?q???p?ӂ???Ă???i?\????s1??s2?͋??ɉ??炩?̏W????\???j?B


????	???\?b?h?^???Z?q
s1??s2???݂??ɑf???ǂ????𒲂ׂ?	s1.isdisjoint(s2)
s1??s2?ɕ?܂???邩?ǂ????is1??s2?̕????W?????ǂ????j?𒲂ׂ?	s1.issubset(s2) s1 <= s2
s1??s2?̐^?????W?????ǂ????𒲂ׂ?	s1 < s2
s1??s2???܂??邩?ǂ????is1??s2?̏?ʏW?????ǂ????j?𒲂ׂ?	s1.issuperset(s2) s1 >= s2
s1??s2?̐^??ʏW?????ǂ????𒲂ׂ?	s1 > s2
?W???ƏW???̊֌W?𒲂ׂ郁?\?b?h?^???Z?q

?@?ȉ???isdisjoint???\?b?h???g???āA2?̏W?????݂??ɑf?ł??邩?ǂ????𒲂ׂ?Ⴞ?B

s1, s2 = {0, 1, 2}, {3, 4, 5}
print(s1.isdisjoint(s2)) # True

s1, s2 = {0, 1, 2}, {2, 3, 4}
print(s1.isdisjoint(s2)) # False

?@?ŏ??̗?ł?{0, 1, 2}??{3, 4, 5}?Ƃ??????ʂ???v?f???Ȃ??i?܂?A?݂??ɑf?ȁj2?̏W?????ׂĂ???̂Ō??ʂ?True?ƂȂ?B2?ڂ̗?ł͋??ʂ???v?f??????̂Ō??ʂ?False?ƂȂ?B

?@????{0, 1, 2, 3}?Ƃ????W????{0, 2}?Ƃ????W???????????Ƃ??ɁA?ǂ??炩???ǂ??炩?̕????W???ł??邩?ǂ?????issubset???\?b?h??<=???Z?q?Œ??ׂ?Ⴞ?B

s1, s2 = {0, 1, 2, 3}, {0, 2}
print(s1.issubset(s2)) # False
print(s2.issubset(s1)) # True
print(s2 <= s1) # True

?@issubset???\?b?h?̌Ăяo???Ɏg?p?????W?????A?????Ɏw?肵???W???̕????W???Ȃ猋?ʂ?True?ƂȂ?B<=???Z?q?̏ꍇ?́A???Z?q?̍????̏W?????E???̏W???̕????W???ł???Ƃ??Ɍ??ʂ?True?ƂȂ?B?Ȃ??Aissubset???\?b?h??<=???Z?q??2?̏W????????ł???ꍇ?ɂ?True?ƂȂ?i?ȉ???<=???Z?q?ł̗?j?B

s1, s2 = {0, 1, 2}, {0, 1, 2}
print(s1 <= s2) # True

?@?????ł͂Ȃ??A?ǂ??炩???ǂ??炩?̐^?????W???ł??邩?ǂ????𒲂ׂ?̂Ȃ?A<???Z?q???g?p????B

s1, s2 = {0, 1, 2}, {0, 1, 2, 3}
print(s1 < s2) # True

s1, s2 = {0, 1, 2}, {0, 1, 2}
print(s1 < s2) # False

?@?ŏ??̗?ł́A{0, 1, 2}?Ƃ????W????{0, 1, 2, 3}?̐^?????W???ł??邩?ǂ????𒲂ׂĂ???̂ŁA???ʂ?True?ƂȂ?B???̗?ł́A{0, 1, 2}?Ƃ????????v?f????Ȃ?2?̏W?????ׂĂ???̂?<=???Z?q?̂Ƃ??Ƃ͈قȂ?A???ʂ?False?ƂȂ?B

?@???l?ɁA????̏W????????????̏W?????܂??Ă??邩?ǂ?????issuperset???\?b?h?A>=???Z?q?A>???Z?q???g???Ē??ׂ???B?ȉ??ɗ???????B?????͕s?v???낤?B

# ?ǂ??炩?̏W????????????̏W?????܂??邩?ǂ????𒲂ׂ?
s1, s2 = {0, 1, 2, 3}, {0, 1, 2}
print(s1.issuperset(s2)) # True
print(s2.issuperset(s1)) # False
print(s1 >= s2) # True

s1, s2 = {0, 1, 2}, {0, 1, 2}
print(s1 >= s2) # True

# s1??s2?̐^??ʏW?????ǂ????𒲂ׂ?
s1, s2 = {0, 1, 2, 3}, {0, 1, 2}
print(s1 > s2) # True

s1, s2 = {0, 1, 2}, {0, 1, 2}
print(s1 > s2) # False

2?ȏ?̏W??????W????V???ɍ쐬????

?@2?ȏ?̏W??????ɘa?A???A?????i?ρj?A?Ώ̍??Ƃ????V???ȏW?????쐬?ł???B

?a?^???^?????^?Ώ̍?

?@???????쐬???郁?\?b?h?Ɖ??Z?q???ȉ??Ɏ????B


????	???\?b?h?^???Z?q
s1??s2?̘a?W?????쐬????	s1.union(s2) s1 \| s2
s1??s2?̌??????쐬????	s1.intersection(s2) s1 & s2
s1????s2?̗v?f???폜???????W?????쐬????	s1.difference(s2) s1 - s2
s1??s2?̑Ώ̍??W?????쐬????	s1.symmetric_difference(s2) s1 ^ s2
?a?^???^?????^?Ώ̍????쐬???郁?\?b?h?^???Z?q

?@?ȉ???{0, 1, 2}?Ƃ????W????{0, 1, 2, 3}?Ƃ????W???̘a????Ȃ?W????V???ɍ쐬????Ⴞ?B

s1, s2 = {0, 1, 2}, {1, 2, 3}
result = s1.union(s2)
print(result) # {0, 1, 2, 3}
print(s1) # {0, 1, 2}

result = s1 | s2
print(result) # {0, 1, 2, 3}
print(s1) # {0, 1, 2}

?@?ŏ??̗?ł?union???\?b?h???g?p???Ă???B???̗?ł?|???Z?q???g?p???Ă???B?????̃??\?b?h?^???Z?q?͐V???ɏW?????쐬????_?͊o???Ă??????B???Ƃ??Ƃ̏W???͕ω????Ȃ??B?܂??A|???Z?q??A?????邱?ƂŁA3?ȏ?̏W???̘a???v?Z???邱?Ƃ??ł???i?????????????͑??̉??Z?q?ł????l?j?B

s3 = {3, 4, 5}
result = s1 | s2 | s3
print(result) # {0, 1, 2, 3, 4, 5}

?@?ȉ???difference???\?b?h??-???Z?q???g???āA2?̏W???̍?????Ȃ?W?????쐬????Ⴞ?B

s1, s2 = {0, 1, 2, 3, 4, 5}, {1, 3, 5}
diff = s1.difference(s2)
print(diff) # {0, 2, 4}

s1, s2 = {0, 1, 2, 3, 4, 5}, {0, 2, 4}
diff = s1 - s2
print(diff) # {1, 3, 5}

?@?ŏ??̗?ł͏W??s1?i{0, 1, 2, 3, 4, 5}?j????W??s2?i{1, 3, 5}?j?Ɋ܂܂?Ă???v?f???????????̂????ƂȂ?B2?ڂ̗?ł͏W??s2??{0, 2, 4}?ƂȂ??Ă???̂ŁA???̗v?f???W??s1?????菜???????̂????ƂȂ?B

?@?ȉ???intersection???\?b?h??&???Z?q???g???āA????????Ȃ?W????V???ɍ쐬????Ⴞ?B??????2?̏W???ɋ??ʂ???v?f????Ȃ?̂ŁA???̏ꍇ??{2, 3}?Ƃ????W?????V???ɍ쐬?????B

s1, s2 = {0, 1, 2, 3}, {2, 3, 4, 5}
intersection = s1.intersection(s2)
print(intersection) # {2, 3}
intersection = s1 & s2
print(intersection) # {2, 3}