json的四个方法

json.dumps

dicts = [{1: 2, "name": "age", 'hehe': {"name": "chang"}}]

strs = json.dumps(dicts)

python数据类型 --> str

json.loads

strs = '{{1: 2, "name": "age", 'hehe': {"name": "chang"}}}'

dicts = json.loads(strs)

str --> python数据类型

json.dump()

dicts2 = {1: 2, "name": "age"}

f = open('1.txt', 'w')

json.dump(dicts2, f)

把dict写进file

json.load()

f = open('1.txt','r')

dicts = json.load(f)

把file中的读出来--》dict