如何获取2d列表查找计数python？

my_list = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]

def find_count_2d_list(my_list, target):
    count = 0
    for row in my_list:
        for element in row:
            if element == target:
                count += 1
    return count

target_value = 3
count = find_count_2d_list(my_list, target_value)
print(f"The count of {target_value} in the 2D list is: {count}")

The count of 3 in the 2D list is: 1