python 实现JSON格式的读写操作

import json

def write_json_file(data):    #写入json
    with open("data.json", "w") as data_file:
        json.dump(data, data_file)

def read_json_file(data):
    with open("data.json", "r") as data_file:
        return json.load(data_file)
def main():
    #写入json数据
    data = {
        "name":"Alice",
        "age": 30,
        "city":"New York"
    }
    write_json_file(data)
    #读取json数据
    print("读数据")
    print(read_json_file(data))


if __name__ == "__main__":
    main()