SWIFT SET
// set
var menu: Set = [“Shandong”,“Shanghai”,“Jiangsu”,“Zhejiang”,“Beijing”,“Shanxi”]
menu.insert(“Sichuan”)
var aFavFood: Set = [“Sichuan”, “Jiangsu”]
var bFavFood: Set = [“Sichuan”, “Zhejiang”]
print(aFavFood.intersection(bFavFood))
總結
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