1 import json 2 3 d = {"k1":123,"k2":"v2","k3":"v3"} 4 5 s = json.dumps(d) 6 print(s,type(s)) 7 #{"k1": 123, "k2": "v2", "k3": "v3"} <class 'str'> 8 9 s = json.loads(s)#字符串内部必须为双引号 10 print(s,type(s)) 11 #{'k1': 123, 'k2': 'v2', 'k3': 'v3'} <class 'dict'> 12 13 r = json.dump(s,open('db.txt','w')) 14 #{"k1": 123, "k2": "v2", "k3": "v3"} 15 16 r = json.load(open('db.txt','r')) 17 print(r,type(r)) 18 #{'k1': 123, 'k2': 'v2', 'k3': 'v3'} <class 'dict'>
