### 实现指定文本文件中查找被查内容并返回位置信息 可以使用 Python 实现一个简单的文本内查找系统，以下是示例代码： ```python def TextFileSearch(txtFile, string): count = 0 listLine = [] try: with open(txtFile, 'r', encoding='utf-8') as f: for line in f.readlines(): if string in line: listLine.append(count) count += 1 except FileNotFoundError: print(f"文件 {txtFile} 未找到。") return [] if listLine: for i in range(len(listLine)): print(f"在 {txtFile} 第 {listLine[i]} 行已找到。") return listLine ``` 你可以使用以下方式调用这个函数： ```python file_path = 'your_file.txt' search_string = 'your_search_string' result = TextFileSearch(file_path, search_string) ``` ### 统计电脑所有文件个数并按图片/视频/二进制/文本分类计算大小及占比 以下是一个 Python 脚本示例，用于统计电脑中所有文件个数，并按图片、视频、二进制、文本等类别计算大小及占比： ```python import os # 定义文件类型 image_extensions = ('.jpg', '.jpeg', '.png', '.gif', '.bmp') video_extensions = ('.mp4', '.avi', '.mov', '.mkv') text_extensions = ('.txt', '.csv', '.log', '.md') # 初始化计数器和大小 total_files = 0 total_size = 0 image_count = 0 image_size = 0 video_count = 0 video_size = 0 binary_count = 0 binary_size = 0 text_count = 0 text_size = 0 # 遍历根目录 root_dir = '/' # 可以修改为你想要统计的根目录 for root, dirs, files in os.walk(root_dir): for file in files: file_path = os.path.join(root, file) try: file_size = os.path.getsize(file_path) total_files += 1 total_size += file_size file_ext = os.path.splitext(file)[1].lower() if file_ext in image_extensions: image_count += 1 image_size += file_size elif file_ext in video_extensions: video_count += 1 video_size += file_size elif file_ext in text_extensions: text_count += 1 text_size += file_size else: binary_count += 1 binary_size += file_size except Exception as e: print(f"处理文件 {file_path} 时出错: {e}") # 计算占比 image_percentage = (image_size / total_size) * 100 if total_size > 0 else 0 video_percentage = (video_size / total_size) * 100 if total_size > 0 else 0 binary_percentage = (binary_size / total_size) * 100 if total_size > 0 else 0 text_percentage = (text_size / total_size) * 100 if total_size > 0 else 0 # 输出结果 print(f"总文件个数: {total_files}") print(f"总大小: {total_size} 字节") print(f"图片文件个数: {image_count}, 大小: {image_size} 字节, 占比: {image_percentage:.2f}%") print(f"视频文件个数: {video_count}, 大小: {video_size} 字节, 占比: {video_percentage:.2f}%") print(f"二进制文件个数: {binary_count}, 大小: {binary_size} 字节, 占比: {binary_percentage:.2f}%") print(f"文本文件个数: {text_count}, 大小: {text_size} 字节, 占比: {text_percentage:.2f}%") ```