比较两个不同大小的动态数组，看看有多少匹配

def compare_arrays(array1, array2):
    count = 0
    if len(array1) < len(array2):
        smaller_array = array1
        larger_array = array2
    else:
        smaller_array = array2
        larger_array = array1

    for element1 in smaller_array:
        for element2 in larger_array:
            if element1 == element2:
                count += 1
                break

    return count

# 示例用法
array1 = [1, 2, 3, 4, 5]
array2 = [3, 4, 5, 6, 7, 8]
matching_count = compare_arrays(array1, array2)
print("匹配的数量为:", matching_count)