Python3.9字典合并(|)和更新(| =)运算符

Python3.9字典合并(|)和更新(| =)运算符

python3.9新减少了兼并 (|) 与革新 (|=) 演算符,介入内置的 dict 类。 它们为现有的 dict.update 和 {**d1, **d2} 字典兼并本领供给了弥补。 >>> x = {"key1": "value1 from x", "key2": "value2 from x"} >>> y = {"key2": "value2 from y", "key3": "value3 from y"} >>> x | y {'key1': 'value1 from x', 'key2': 'value2 from y', 'key3': 'value3 from y'} >>>...