abs() 绝对值
delattr()
hash()
memoryview()
set()
all()
dict()
help()
min()
setattr()
any()
dir()
hex()
next()
slice()
ascii()
divmod()
id()
object()
sorted()
bin()
enumerate()
input()
oct()
staticmethod()
bool()
eval()
int()
open()
str()
breakpoint()
exec()
isinstance()
ord()
sum()
bytearray()
filter()
issubclass()
pow()
super()
bytes()
float()
iter()
print()
tuple()
callable()
format()
len()
property()
type()
chr()
frozenset()
list()
range()
vars()
classmethod()
getattr()
locals()
repr()
zip()
compile()
globals()
map()
reversed()
__import__()
complex()
hasattr()
max()
round()
https://docs.python.org/3/library/functions.html#abs 官方文档