如何按类型计算列表中的元素？

my_list = [1, 'hello', True, 3.14, {'key': 'value'}, [1, 2, 3]]

sum_of_numbers = 0
concatenated_string = ""
count_of_objects = 0
average_of_numbers = 0.0

for element in my_list:
    if isinstance(element, int) or isinstance(element, float):
        sum_of_numbers += element
    elif isinstance(element, str):
        concatenated_string += element
    elif isinstance(element, bool):
        count_of_objects += 1
    elif isinstance(element, dict):
        count_of_objects += len(element)
    elif isinstance(element, list):
        count_of_objects += len(element)

if sum_of_numbers > 0:
    average_of_numbers = sum_of_numbers / len(my_list)

print("Sum of numbers:", sum_of_numbers)
print("Concatenated string:", concatenated_string)
print("Count of objects:", count_of_objects)
print("Average of numbers:", average_of_numbers)