obj = dict(name='小明', age=20)

s = json.dumps(obj, ensure_ascii=True) {"name": "\u5c0f\u660e", "age": 20}

设置为True将中文存储为ascii编码

p = json.dumps(obj, ensure_ascii=False) {"name": "小明", "age": 20}

设置为False作为中文存储