從python2.6開始，python標準庫中添加了對json的支援，操作json時，只需要import json即可，藉助的api，簡單來說就是兩個

物件轉json ----------- json.dumps()

json轉物件 ----------- json.loads()

class Student(object):

def __init__(self, name, age, score,reward):

self.name = name

self.age = age

self.score = score

self.reward = reward

def dict2student(d):

return Student(d["name"], d["age"], d["score"],d["reward"])

json_str = "{"name": "Bob", "age": 20, "score": 88, "reward": ["三好學生", "優秀團幹", "最佳辯手"]}"

student = json.loads(json_str,object_hook=dict2student)

print(type(student))