比较3个不同列表的计数的有效方法

# 定义三个列表
list1 = [1, 2, 2, 3, 4, 4, 4]
list2 = [2, 2, 3, 3, 5]
list3 = [1, 1, 4, 4, 4, 6]

# 使用字典进行计数
def count_elements(lst):
    count_dict = {}
    for element in lst:
        if element in count_dict:
            count_dict[element] += 1
        else:
            count_dict[element] = 1
    return count_dict

# 统计三个列表的计数
count1 = count_elements(list1)
count2 = count_elements(list2)
count3 = count_elements(list3)

# 比较计数
def compare_counts(count1, count2, count3):
    comparison_result = {}
    all_elements = set(count1.keys()).union(set(count2.keys())).union(set(count3.keys()))
    
    for element in all_elements:
        comparison_result[element] = {
            'list1': count1.get(element, 0),
            'list2': count2.get(element, 0),
            'list3': count3.get(element, 0)
        }
    
    return comparison_result

comparison_result = compare_counts(count1, count2, count3)
print(comparison_result)