- 寫一個生成式能夠產(chǎn)生的數(shù)據(jù)為: 1, 2, 27, 256, 3125,…, 9**9
def pow_new():
for num in range(1,10):
yield num ** num
- 寫一個生成式能夠產(chǎn)生1-10中所有半徑是偶數(shù)的圓的面積
def rect_circle():
import math
for num in range(1,11):
if not num & 1:
yield round(num**2*math.pi,2)
- 寫一個生成式交換字段的鍵和值块差，產(chǎn)生一個新的字典
def dict_change(dict1):
dict1 = dict((dict1[key],key) for key in dict1)
return dict1
- 為函數(shù)寫一個裝飾器缩挑，在函數(shù)執(zhí)行之后輸出 after
def after(fun1):
def inner(*args,**kwargs):
fun1(*args,**kwargs)
print('after')
return inner
@after
def fun():
print(123)
- 為函數(shù)寫一個裝飾器瞎颗，把函數(shù)的返回值 +100 然后再返回咏删。
def add(fun1):
def inner(*args,**kwargs):
value = fun1(*args,**kwargs)
return value+100
return inner
@add
def fun2():
return 30
-
寫一個裝飾器@tag要求滿足如下功能:
@tag def render(text): # 執(zhí)行其他操作 return text @tag def render2(): return 'abc' print(render('Hello')) # 打印出: <p>Hello</p> print(render2()) # 打印出: <p>abc</p>
def tag(fun1):
def inner(*args,**kwargs):
value = fun1(*args,**kwargs)
return '<p>'+str(value)+'</p>'
return inner
-
寫一個裝飾器@tag要求滿足如下功能(需要使用帶參的裝飾器，自己先自學正在一下):
@tag(name='p') def render(text): # 執(zhí)行其他操作 return text @tag(name='div') def render2(): return 'abc' print(render('Hello')) # 打印出: <p>Hello</p> print(render2()) # 打印出: <div>abc</div>
def tag(name):
def inner_first(func1):
def inner_second(*args,**kwargs):
value = func1(*args,**kwargs)
return '<'+ name + '>'+ value + '</' + name + '>'
return inner_second
return inner_first
- 為函數(shù)寫一個裝飾器销斟，根據(jù)參數(shù)不同做不同操作岖寞。
flag為True，則 讓原函數(shù)執(zhí)行后返回值加100宠漩，并返回举反。
flag為False，則 讓原函數(shù)執(zhí)行后返回值減100扒吁，并返回火鼻。
def flag_value(flag):
def inner_first(fun1):
def inner_second(*args,**kwargs):
value = fun1(*args,**kwargs)
if flag:
return value + 100
else:
return value - 100
return inner_second
return inner_first
- 寫一個斗地主發(fā)牌器
def doudizhu():
def poke_has():
import random
list1 = [str(x) for x in range(2, 11)] + ['j', 'Q', 'K', 'A']
dict1 = {'?': list1, '?': list1, '?': list1, '?': list1}
list2 = [key + value for key in dict1 for value in dict1[key]]
list2 = list2 + ['大王', '小王']
len_list = len(list2)
for _ in range(len_list):
poke = random.choice(list2)
yield poke
list2.remove(poke)
game = poke_has()
user1 = [next(game) for _ in range(17)]
user2 = [next(game) for _ in range(17)]
user3 = [next(game) for _ in range(17)]
dizhu = input('請輸入哪個用戶是地主:(user1-3)')
if dizhu == 'user1':
user1 += [next(game) for _ in range(3)]
elif dizhu == 'user2':
user2 += [next(game) for _ in range(3)]
else:
user3 += [next(game) for _ in range(3)]
return {'user1':user1},{'user2':user2},{'user3':user3}
# print(doudizhu())
