sys,time,pickle,json

import sys
import time
# print(sys.argv)#命令行参数，第一个是路径
# print(sys.path)
# # if sys.argv[1] == "1":
# #     print(1)
# # choice = input("wanna quit?")
# # if choice == "y" or choice == "Y":
# #     exit("goodbye")#退出
# #     sys.exit()#等同
# print(sys.version)#获取python版本
# print(sys.platform)#返回操作系统名称
# for i in range(101):
#     sys.stdout.write("
")  # 每一次清空原行
#     sys.stdout.write("%s%% | %s" % (int(i), int(i)*"#"))
#     sys.stdout.flush()  # 强制刷新到屏幕
#     #print(str(i)+"%")
#     time.sleep(0.05)
accounts = {
    1000:{
        "name":"tom",
        "email":"mm.cc",
        "passwd":"123",
        "balance":12000,
        "phone":"133415",
        "bank_acc":{
            "abcc":441
        }
    },
    1001:{
        "name":"jim",
        "email":"dmm.cc",
        "passwd":"1234",
        "balance":10000,
        "phone":"1233415",
        "bank_acc":{
            "abcc":554
        }

    }
}
import pickle
with open("h1.txt","wb") as f:
    f.write(pickle.dumps(accounts))
with open("h1.txt","rb") as f2:
    dic = pickle.loads(f2.read())
    dic[1000]["balance"] -= 2000
with open("h1.txt", "wb") as f:
    f.write(pickle.dumps(dic))
with open("h1.txt", "rb") as f2:
    print(pickle.loads(f2.read()))

####等于上面
# with open("h1.txt","wb") as f:
#     pickle.dump(accounts,f)
# with open("h1.txt","rb") as f2:
#     dic = pickle.load(f2)
#     dic[1000]["balance"] -= 2000
# with open("h1.txt", "wb") as f:
#     pickle.dump(dic,f)
# with open("h1.txt", "rb") as f2:
#     print(pickle.load(f2))
####
#import json
#json 用法同pickle，json局限但通用

#json.loads()用于将字典、列表、元组等形式的字符串，转换成相应的字典、列表、元组
#loads字符串必须里面都是双引号，例如:'{"n1":1}'

# with open("h1.txt","w") as f:
#     f.write(json.dumps(accounts))
# with open("h1.txt","r") as f2:
#     dic = json.load(f2)
#     dic["1000"]["balance"] -= 3000
# with open("h1.txt", "w") as f:
#     json.dump(dic,f)
# with open("h1.txt", "rb") as f2:
#     print(json.load(f2))