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import json

dict1 = {'zhangfei':1, "liubei":2, "guanyu": 4, "zhaoyun":3}

myjson = json.dumps(dict1)

mydict = json.loads(myjson)

import random

list_1 = list(range(1,10))

random.shuffle(list_1)

print(list_1)

class A(object):

def funcA(self):

print("this is func A")

class B(A):

def funcA_inB(self):

super(B,self).funcA()

def funcC(self):

print("this is func C")

ins = B()

ins.funcA_inB()

ins.funcC()

a = A()

b = B()

print(f"isinstance: {isinstance(a,A)}")

print(f"isinstance: {isinstance(b,A)}")

print(f"type func is : {type(a)==A}")

print(f"type func is : {type(b)==A}")

# # 元类的创建

# class MyMetaClass(type):

# def __new__(cls,name,bases,attrs):

# # 修改类的属性和方法

# attrs["__str__"] == lambda self: "This is a class created by MyMetaClass"

# # 添加新的属性和方法

# attrs["new_method"] = lambda self:"this is a new method"

# # 控制类的继承关系

# if name == "MyClass":

# bases += (BaseClass,)

# return super().__new__(cls,name,bases,attrs)

# class MyClass(object,metaclass = MyMetaClass):

# pass

# print(MyClass())

# # 输出：This is a class created by MyMetaClass

# obj = MyClass()

# obj.new_method()

print("all",all([1,2,0,3,4]))

print("any",any([1,2,0,3,4]))

def reverse_int(x):

if not isinstance(x,int):

return False

if -10 < x < 10:

return x

tmp = str(x)

if tmp[0] != "-":

tmp = tmp[::-1]

return int(tmp)

else:

tmp = tmp[1:][::-1]

x = int(tmp)

return -x

res = reverse_int(-23782)

def sum(*arg):

def inner_sum():

tmp = 0

for i in arg:

tmp += i

return tmp

return inner_sum

# mysum = sum(2,4,6)

# print(mysum)

# res1 = mysum()

# print(res1)

def my_dec(func):

def wrapper(*args,**kwargs):

print("Befor callign function")

result = func(*args,**kwargs)

print("After calling funciton")

return result

return wrapper

@my_dec

def my_function(x):

return x + 1

res2 = my_function(32)

print(res2)

'''

判断两个json格式的数据是否相等

'''

file_text2 = '{"name":"john","age":22,"sex":"woman","address":"USA"}'

file_text1 = '{"name":"john","age":22,"sex":"man","address":"USA"}'

dict1 = json.loads(file_text1)

dict2 = json.loads(file_text2)

for s1, s2 in zip(sorted(dict1), sorted(dict2)):

print(s1,s2)

if str(dict1[s1]) != str(dict2[s2]):

print(s1 + ":" + dict1[s1] + "!=" + s2 + ":" + dict2[s2])

# sex:man!=sex:woman

# 主动抛出异常

# def test_raise(n):

# if not isinstance(n,int):

# raise Exception("n is not an integer")

# else:

# print("good")

# test_raise(8.9)

# def test_Assert(n):

# assert n == 2, "n is not 2"

# print("n is 2")

# test_Assert(8.9)

import datetime

def dayofyear():

'''

year，day,month都是数字！ 很关键

:return:

'''

year = datetime.datetime.today().year

month = datetime.datetime.today().month

day = datetime.datetime.today().day

dayofyear = year + month + day

print(dayofyear)

print(year)

dayofyear()