如何选择出现在多列数据中的字符

def find_most_common_character(data):
    char_count = {}  # 字符和对应的出现次数

    # 遍历每一列的数据
    for column in data:
        # 统计字符出现次数
        for char in column:
            if char in char_count:
                char_count[char] += 1
            else:
                char_count[char] = 1

    most_common_char = ''
    max_count = 0

    # 找到出现次数最多的字符
    for char, count in char_count.items():
        if count > max_count:
            most_common_char = char
            max_count = count

    return most_common_char

# 示例数据
data = [
    ['a', 'b', 'c'],
    ['b', 'c', 'd'],
    ['c', 'd', 'e']
]

result = find_most_common_character(data)
print("出现次数最多的字符是:", result)