操作json

import json

class OperationJson:
    def __init__(self,file_path=None):
        if file_path == None:
            self.file_path = './login.json'
        else:
            self.file_path = file_path
        self.data = self.read_data()

    #读取json文件
    def read_data(self):
        with open(self.file_path) as fp:
            data = json.load(fp)
            return data

    #根据关键字获取数据
    def get_data(self,id):
        return self.data[id]

if __name__ == '__main__':
    opjson = OperationJson()
    print(opjson.get_data('login'))