📅  最后修改于: 2022-03-11 14:45:36.410000             🧑  作者: Mango
代码示例3
d = {'a': 1, 'b': 2}
print(d)
d['a'] = 100 # existing key, so overwrite
d['c'] = 3 # new key, so add
d['d'] = 4
print(d)