from collections import namedtuple
# 类
p = namedtuple("Point", ["x", "y"])
# 对象
p1 = p(10, 20)  
print(p1)  # Point(x=10, y=20)
print(p1.x)  # 10
print(p1.y)  # 20

import os
# os.makedirs("金庸/笑傲江湖/令狐冲") # 可以一次性创建多级目录

# os.rmdir("金庸/笑傲江湖/令狐冲") # 指定文件夹删除   前提需要令狐冲文件夹是空的

# t = os.path.dirname(r"D:\python_workspace_s18\练习用的 \江湖")
# print(t) # D:\python_workspace_s18\练习用的 

import sys
print(sys.path)  # 找模块的. 必须要记住. 模块的搜索路径
# sys.path.append("D:\\python_workspace_s18\\day21 继承")  # 添加新的查找位置
import world  # world是自定义的pythonfile
# world.kungfu() # 先找‘D:\\python_workspace_s18\\练习用的‘ ,再找 ‘D:\\python_workspace_s18‘

import pickle
#
class Elephant:
    def __init__(self, name, weight, height):
        self.name = name
        self.weight = weight
        self.height = height
    def tiaoxi(self):
        print(f"{self.name}大象特别喜欢调戏人")

e = Elephant("宝宝", "185T", "175")
# # 序列化
bs = pickle.dumps(e) # 把对象进行序列化
print(bs) # b‘\x80\x03c__main__\nElephant\nq\x00)\x81q\x01}q# x02(X\x04\x00\x00\x00nameq\x03X\x06\x00\x00\x00\xe5\xae\x9d# xe5\xae\x9dq\x04X\x06\x00\x00\x00weightq\x05X\x04\x00\x00# x00185Tq\x06X\x06\x00\x00\x00heightq\x07X\x03\x00\x00\x00175q\x08ub.‘

# # 反序列化
dx = pickle.loads(bs) # 反序列化. 得到的是大象
dx.tiaoxi()

e1 = Elephant("宝宝", "185T", "175")
e2 = Elephant("宝贝", "120T", "120")
lst = [e1, e2]
pickle.dump(lst, open("大象", mode="wb"))
# 读
lst = pickle.load(open("大象", mode="rb"))
for dx in lst:
    dx.tiaoxi()

import json

dic = {"baby":None, "hxm":False, "syy":"史杨杨"}
#
s = json.dumps(dic, ensure_ascii=False) # json处理中文的问题
print(s)  # {"baby": null, "hxm": false, "syy": "史杨杨"}

d = json.loads(‘{"baby": null, "hxm": false, "syy": "史杨杨"}‘)
print(d[‘baby‘]) # None

f = open("baby.json", mode="w", encoding="utf-8")
json.dump({"baby":None, "hxm":False, "syy":"史杨杨"}, f, ensure_ascii=False)

f = open("baby.json", mode="r", encoding="utf-8")
obj = json.load(f)
print(obj)