数据类型转换

#数据类型转换

# list -> set
l1 = [1,2,3]
s1 = set(l1)
# set -> list
l2 = list(s1)
print(l1)
print(l2)
print(s1)
# tuple -> set
t1 = (2,3,4)
s2 = set(t1)
# set -> tuple
t2 = tuple(s2)
print(t1)
print(t2)
print(s2)

# string -> set
str1 = "abc"
s3 = set(str1)
print(s3)
# str2 = str(s3)
# print(str2)

# dict -> set
d1 = {"a":1, "b":2}
s5 = set(d1)
print(s5)
# set -> dict 不能转换
# d4 = dict(s5)
# print(d4)