python - 向字典添加新键？(Add new keys to a dictionary?)

Question

Is it possible to add a key to a Python dictionary after it has been created?

(创建密钥后，是否可以向Python字典添加密钥？)

It doesn't seem to have an .add() method.

(它似乎没有.add()方法。)

  ask by lfaraone translate from so

Answer 1

d = {'key':'value'}
print(d)
# {'key': 'value'}
d['mynewkey'] = 'mynewvalue'
print(d)
# {'mynewkey': 'mynewvalue', 'key': 'value'}