python字典通过值获取键_python字典

import numpy as np
# python字典根据值求键

# 创建一个字典
my_dict = {'apple': 1, 'banana': 2, 'orange': 3}

# 根据值来查找键
def get_keys(d, value):
    return [k for k, v in d.items() if v == value]
# 找出值为2的键
keys = get_keys(my_dict, 2)
print(keys)  # ['banana']

my_dict1={"余登武":['李月月','高念','小宵虎南'],"总裁余":['波多野结衣','小早川怜子']}
def get_keys1(dict, value):
    for key in dict.keys():
        if value in dict[key]:
            return key
keys1 = get_keys1(my_dict1,'小宵虎南')
print(keys1)  # ['banana']

[‘banana’]
余登武