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json 读写
python
# Writing JSON data
with open('data.json', 'w') as f:
json.dump(data, f)
# Reading data back
with open('data.json', 'r') as f:
data = json.load(f)
字符和对象转换
python
import json
data = {
'name': 'ACME',
'shares': 100,
'price': 542.23
}
json_str = json.dumps(data)
data = json.loads(json_str)
print(json_str, type(json_str))
# {"name": "ACME", "shares": 100, "price": 542.23} <class 'str'>
print(data, type(data))
# {'name': 'ACME', 'shares': 100, 'price': 542.23} <class 'dict'>
嗯，带s的就跟string有关，没错～
json 汉字乱码
json写到文件中有时候会发生乱码，可以使用ensure_ascii=False这个参数解决，用indent可以解决缩紧的问题
python
@classmethod
def write(cls, data):
with open(cls.JSON_FILE, 'w', encoding="UTF-8") as f:
json.dump(data, f, indent=2, ensure_ascii=False)