从字典列表中查找每个键的最大值长度

def find_max_key_length(dict_list):
    max_length = 0  # 初始化最大长度为0

    for dictionary in dict_list:
        keys = dictionary.keys()  # 获取字典的键列表

        for key in keys:
            key_length = len(key)  # 获取键的长度
            if key_length > max_length:
                max_length = key_length  # 更新最大长度

    return max_length

# 测试代码
dict_list = [{"key1": "value1", "key2": "value2"}, {"key3": "value3", "key4": "value4", "key5": "value5"}]
result = find_max_key_length(dict_list)
print("最大键长度:", result)