吴裕雄--天生自然 PYTHON3开发学习：集合

fruits = {"apple", "banana", "cherry"}
fruits.add("orange")
print(fruits)

fruits = {"apple", "banana", "cherry"}
fruits.clear()
print(fruits)

fruits = {"apple", "banana", "cherry"}
x = fruits.copy()
print(x)

x = {"apple", "banana", "cherry"}
y = {"google", "microsoft", "apple"}

z = x.difference(y) 

print(z)

x = {"apple", "banana", "cherry"}
y = {"google", "microsoft", "apple"}

x.difference_update(y) 

print(x)

fruits = {"apple", "banana", "cherry"}

fruits.discard("banana") 

print(fruits)

x = {"apple", "banana", "cherry"}
y = {"google", "runoob", "apple"}

z = x.intersection(y) 

print(z)

x = {"apple", "banana", "cherry"}
y = {"google", "runoob", "apple"}

x.intersection_update(y) 

print(x)

x = {"apple", "banana", "cherry"}
y = {"google", "runoob", "facebook"}

z = x.isdisjoint(y) 

print(z)

x = {"apple", "banana", "cherry"}
y = {"google", "runoob", "apple"}

z = x.isdisjoint(y) 

print(z)

fruits = {"apple", "banana", "cherry"}

fruits.pop() 

print(fruits)

fruits = {"apple", "banana", "cherry"}

fruits.remove("banana") 

print(fruits)

x = {"apple", "banana", "cherry"}
y = {"google", "runoob", "apple"}

z = x.symmetric_difference(y) 

print(z)

x = {"apple", "banana", "cherry"}
y = {"google", "runoob", "apple"}

x.symmetric_difference_update(y) 

print(x)

x = {"apple", "banana", "cherry"}
y = {"google", "runoob", "apple"}

z = x.union(y) 

print(z)

x = {"a", "b", "c"}
y = {"f", "d", "a"}
z = {"c", "d", "e"}

result = x.union(y, z) 

print(result)

x = {"apple", "banana", "cherry"}
y = {"google", "runoob", "apple"}

z = x.union(y) 

print(z)

x = {"a", "b", "c"}
y = {"f", "d", "a"}
z = {"c", "d", "e"}

result = x.union(y, z) 

print(result)

x = {"apple", "banana", "cherry"}
y = {"google", "runoob", "apple"}

x.update(y) 

print(x)