python数据类型之间的转换

** 二.数据类型的转换 **
1.
int 转 str
a = 123
print(str(a))
print(type(str(a)))
2.
str 转 int
a = "123"
print(int(a))
print(type(int(a)))
3. str 转 list
a = "123"
print(list(a))
print(type(list(a)))
4. str 转 tuple
a = "123"
print(tuple(a))
print(type(tuple(a)))
5. list 转 tuple
a = [1, 2, 3]
print(tuple(a))
print(type(tuple(a)))
6. tuple 转 list
a = (1, 2, 3)
print(list(a))
print(type(list(a)))
7. list 转 set
a = [1, 2, 3]
print(set(a))
print(type(set(a)))
8. tuple 转 set
a = (1, 2, 3)
print(set(a))
print(type(set(a)))
9. set 转 list
a = {1, 2, 3}
print(list(a))
print(type(list(a)))
10. set 转 tuple
a = {1, 2, 3}
print(tuple(a))
print(type(tuple(a)))