1
def tests(a,b,*args,**kwargs):
2
    for arg in args:
3
        print(arg)
4
    for key in kwargs:
5
        print(key,kwargs[key])
6

7
test(1,2,3,4,a=1,b=2)
8
# 3,4,a a=1,b b=2

1
def hi(name="yasoob"):
2
    return "hi " + name
3
print(hi())
4
# 我们甚至可以将一个函数赋值给一个变量，比如
5
greet = hi
6
print(greet())
7
# output: 'hi yasoob'
8
del hi
9
print(hi())
10
#outputs: NameError
11
print(greet())
12
#outputs: 'hi yasoob'

1
def hi(name="yasoob"):
2
    def greet():
3
        return "now you are in the greet() function"
4

5
    def welcome():
6
        return "now you are in the welcome() function"
7

8
    if name == "yasoob":
9
        return greet
10
    else:
11
        return welcome

1
def hi():
2
    return "hi yasoob!"
3

4
def doSomethingBeforeHi(func):
5
    print("I am doing some boring work before executing hi()")
6
    print(func())

1
def warps(func):
2
    def wrapTheFunction(*args,**kwargs):
3
        print("1")
4
        func(*args,**kwargs)
5
        print("2")
6
    return wrapTheFunction
7

8
def func():
9
    print("1")
10

11
func = warps(func)
12
# 这部分类似
13
@warps
14
def func():
15
    print("1")
16
print(func.__name__)#这里的名字被warpTheFunction替换了,为了修正,我们需要做出如下更正
17

18
from functools import wraps
19
def MyWarps(func):
20
    @wraps(func)
21
    def wrapTheFunction(*args,**kwargs):
22
        print("1")
23
        func(*args,**kwargs)
24
        print("2")
25
    return wrapTheFunction
26

27
@MyWarps
28
def func():
29
    print("a")

1
from dataclasses import dataclass
2

3
@dataclass
4
class Person:
5
    name: str
6
    age: int
7

8
p = Person("John", 36)
9
print(p.name)#这样非常优雅

1
from typing import TypedDict
2

3
class Person(TypedDict):
4
  name: string
5
  age: int
6

7
def get_person() -> person:
8
  reutrn {"name":"飞白","age":18}

1
def get_status() -> Literal["success","failure"]:
2
  reutrn "success"

1
from typing import Optional
2

3
def find_item(item_id: int) -> Optional[str]:
4
    if item_id == 0:
5
        return None
6
    return "Item"