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2026-05-14 17:49:08 +08:00
parent 4085f0f6ca
commit 047af26d70
8 changed files with 1 additions and 1 deletions
@@ -0,0 +1,5 @@
+# 如果你需要一个不可变的集合（例如作为字典的键），可以使用 frozenset
+fs = frozenset([1,2,3,4,5,6])
+B = {1, 2, 3, 4}
+print(fs)
+print(len(fs))