json模块

import json
# python的数据类型转成json
# 字典转字符串
d = {"code":0,"msg":"操作成功","token":"XXXX"}
# print(d)
# json_str = json.dump(d,ensure_ascii=False)
# print(json_str) #不加ensure_ascii=False 就是Unicode

# json转成python的数据类型
# json_str = '{"code":0,"msg":"操作成功","token":"XXXX"}'
# dict = json.loads(json_str)
# print(dict)

with open("student.txt",encoding="utf-8") as f:
    new_file = json.loads(f.read())  #由json串转为其它数据类型
    print(new_file)
#
# d = {"code":"0","msg":"操作成功","token":"XXXX"}
# # with open("student.txt",'w+',encoding="utf-8") as f:
# #     new_file = json.dumps(d,ensure_ascii=False,indent=4) #indent缩进
# #     f.write(new_file)

# 只操作文件的
# json.load()
# json.dump()

# with open("student.txt",encoding="utf-8") as f:
#     new_file = json.load(f)  #
#     print(new_file)
#
# with open("student.txt",encoding="utf-8") as f:
#     new_file = json.dump(d,f)

# d = {"code":"0","msg":"操作成功","token":"XXXX"}
def wirte(d):
    with open("student.txt",'w+',encoding="utf-8") as f:
        f.write(json.dumps(d,ensure_ascii=False,indent=4)) #indent缩进

d = {"code":"0","msg":"操作成功1","token":"XXXX"}
wirte(d)