#Union setx = set(["green", "blue"]) sety = set(["blue", "yellow"]) seta = setx | sety print(seta)
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#Union setx = set(["green", "blue"]) sety = set(["blue", "yellow"]) seta = setx | sety print(seta)
转载于:https://www.cnblogs.com/sea-stream/p/9950805.html