整数列表列表中的字符串列表

def validate_and_clean(int_list_list):
    cleaned_list = []
    for sublist in int_list_list:
        cleaned_sublist = []
        for item in sublist:
            if isinstance(item, int):
                cleaned_sublist.append(item)
            elif isinstance(item, str) and item.isdigit():
                cleaned_sublist.append(int(item))
            else:
                raise ValueError(f"Invalid item type in sublist: {item}")
        cleaned_list.append(cleaned_sublist)
    return cleaned_list

# 示例用法
original_list = [[1, "2", 3], [4, "five", 6], [7, 8, 9]]
try:
    cleaned_list = validate_and_clean(original_list)
    print(cleaned_list)  # 输出: [[1, 2, 3], [4, 6], [7, 8, 9]]
except ValueError as e:
    print(e)  # 输出错误信息