{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","id":"38270854-596f-4a26-8183-db8c968c6020","uuid":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","normalized_title":"编码隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","isbns":["9787121181184","0123456789","6044921875","3039331000","0000000000","0000000000000"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":438,"navigation_url":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020","title_url":"https://workshop.closeclaw.top/ai/title/%E7%BC%96%E7%A0%81%20%E9%9A%90%E5%8C%BF%E5%9C%A8%E8%AE%A1%E7%AE%97%E6%9C%BA%E8%BD%AF%E7%A1%AC%E4%BB%B6%E8%83%8C%E5%90%8E%E7%9A%84%E8%AF%AD%E8%A8%80","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/38270854-596f-4a26-8183-db8c968c6020","page_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/page","search_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/search"},"page":{"printed_page":132,"pdf_page":148,"physical_index":148,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"88225fee47ae0b97ef797855b1fc58f4911acf7d1cef83b4ea88084a5120ff9c"},"chapter":"编码隐匿在计算机软硬件背后的语言","content":"注意与非门的输出是和与门完全相反的。与门只有当输入全为1的时候输出才为1，否则输出就为0。\n\n到此为止，我们已经看到可以用四种不同的方式来连接有两个输入、一个输出的继电器，每一种方式的行为功能都不一样。为了避免重复画继电器，我们将它们称为逻辑门，并用电气工程师们所使用的专门符号来表示它们。特定逻辑门的输出取决于它的输入，输出与输入的关系可总结为以下几个表格。\n\n现在，我们已经有四个逻辑门和一个反向器。把这些工具组合到一起其实就是原始的继电器，如下图所示。\n\n这叫做缓冲器(buffer)，可用如下符号表示。\n\n除了输入端的小圆圈，这个符号与反向器是很相似的。很明显，缓冲器“没有什么作用”，它的输入与输出是相同的。\n\n编码隐匿在计算机软硬件背后的语言\n\n132","previous_page":131,"next_page":133}