python - 如果一个字典的值与第二个字典的键和第二个字典值 Python 相同

Question

我想根据第一个字典对第二个字典的值求和。如果我有字典 A 和 B。

A = {"Mark": ["a", "b", "c", "d"], "June": ["e", "a"], "John": ["a", "b", "f"]}
B = {"a": 1, "b": 2, "c": 3, "d": 0, "e": 3, "f": 2}

结果应该是:

Mark=6, June = 4, John = 5

提前致谢

Answer 1

你可以这样做:

for key, value in A.items():
    _sum = 0
    for val in value:
        _sum += B[val]
    print(key, '=', _sum)

输出:

Mark = 6
June = 4
John = 5