Python :获取字典列表中某一类型键的所有值

def get_values_by_key_type(dict_list, key_type):
    values = []
    for dictionary in dict_list:
        keys = list(dictionary.keys())
        if keys.count(key_type) > 0:
            value = dictionary.get(key_type)
            values.append(value)
    return values

dict_list = [
    {"name": "Alice", "age": 25},
    {"name": "Bob", "age": 30},
    {"name": "Charlie", "age": 35},
    {"name": "Dave", "age": 40}
]

key_type = "age"
values = get_values_by_key_type(dict_list, key_type)
print(values)