def process_file(input_file_path, output_file_path):
    try:
        # 打开输入文件进行读取
        with open(input_file_path, 'r', encoding='utf-8') as input_file:
            lines = input_file.readlines()

        processed_lines = []
        empty_line_count = 0

        for line in lines:
            if line.strip() == '':
                # 如果当前行为空行
                empty_line_count += 1
                if empty_line_count <= 2:
                    # 若空行数量不超过 2，则添加该空行
                    processed_lines.append(line)
            else:
                # 如果当前行不为空行
                processed_lines.append(line)
                empty_line_count = 0

        # 打开输出文件进行写入
        with open(output_file_path, 'w', encoding='utf-8') as output_file:
            output_file.writelines(processed_lines)

        print(f"处理完成，结果已保存到 {output_file_path}")

    except FileNotFoundError:
        print(f"未找到输入文件: {input_file_path}")

# 输入文件路径
input_file = 'a00006.txt-merge.txt-new.txt'
# 输出文件路径
output_file = 'output.txt'

process_file(input_file, output_file)