{"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":33,"pdf_page":49,"physical_index":49,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"ce3a9893467e8cb35bacee4cad07a3fd120eb76bd812545edb7a0f78ca9c0a15"},"chapter":"编码隐匿在计算机软硬件背后的语言","content":"尽管图中只画了一节电池，不过实际应用中你也许要用两个。在以后的示意图中，下面的标志表示一个“关”状态（也称断开状态）的开关。\n\n下图则表示开关是“开”的（也称作闭合状态）。\n\n本章手电筒跟上一章中的手电筒的工作方式一样，尽管本章的手电筒中用来连接各个部件的导线比原来长了不少。当你把自己房间那端的开关闭合时，你朋友那儿的灯泡就会被点亮。\n\n现在，你可以用莫尔斯码来发信息了。既然你已经成功地安装了这个“手电筒”，你就可以照样再安装另一套这样的“远距离”设备，好让你的朋友也能够给你发信息。\n\n恭喜你！你已经架设好了一套双向电报系统！你可能注意到了，这个系统包含了两个相互独立但又完全相同的电路。理论上来说，在你给朋友发送信息的同时，他也可以给你发信息（不过同时阅读和发送电码对你的大脑来说或许是个挑战）。\n\n聪明的你也许可以采用如下方式把这套系统加以改进，这样可以节省25%的导线。\n\n5 绕过拐角的通信\n\n33","previous_page":null,"next_page":34}