Python——JSON

import json

arr = [1, 2, 3, 4]
print(json.loads(str(arr)))
dic = '{"name": "xiaoming", "age": 18}'
print(json.loads(dic))
#[1, 2, 3, 4]
#{'name': 'xiaoming', 'age': 18}

import json

arr = [1, 2, 3, 4]
print(json.dumps(arr))
dic = {"name": "xiaoming", "age": 18}
print(json.dumps(dic))

import json

dic = {"name": "xiaohong", "age": 18}
json.dump(dic, open('json.txt', 'w'), ensure_ascii=False)

import json

dic = {"name": "xiaohong", "age": 18}
json.dump(dic, open('json.txt', 'w'), ensure_ascii=False)
content = json.load(open('json.txt'))
print(type(content), content)