如何从具有不同长度和逗号列的不同数据帧创建字典？

def create_dict(data_frames):
    max_cols = max(len(frame.split(',')) for frame in data_frames)  # 找到最大列数

    result_dict = {}  # 创建空字典

    for frame in data_frames:
        cols = frame.split(',')  # 将数据帧分割成列
        for i in range(max_cols):
            if i not in result_dict:
                result_dict[i] = []  # 初始化字典中的键
            if i < len(cols):
                result_dict[i].append(cols[i])  # 将值添加到相应的键中
            else:
                result_dict[i].append(None)  # 对于不够长的列，填充None值

    return result_dict

# 示例数据帧
data_frames = [
    "A,B,C,D",
    "1,2,3",
    "X,Y",
    "a,b,c,d,e"
]

result = create_dict(data_frames)
print(result)

{0: ['A', '1', 'X', 'a'], 1: ['B', '2', 'Y', 'b'], 2: ['C', '3', None, 'c'], 3: ['D', None, None, 'd'], 4: [None, None, None, 'e']}