{"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":49,"pdf_page":65,"physical_index":65,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"abeebf64298e77d1f886d56f36f290fc19359ce61e1e2505f5c429289d332ea6"},"chapter":"编码隐匿在计算机软硬件背后的语言","content":"大多数历史学家认为数字最初起源于对事物的计数，例如：人数、财产或商业交易的计数等。举个例子，如果有一个人有四只鸭子，用图画表示为：\n\n后来，专门负责画鸭子的这个人会想：“为什么我非得要画四只鸭子？为什么我不画一只鸭子再用划线或其他事物来表示有四只鸭子呢？”\n\n然后直到有一天，出现了一个人，他拥有27只鸭子，这种划线的方法就显得很可笑了。\n\n有人说：“必须想一种更好的方法。”于是一个数字系统就诞生了。\n\n所有早期的数字系统中，只有罗马数字沿用到了今天。我们可以在表盘上、纪念碑和雕像的日期上、一些书的页码中，或者在条款的概述中看到罗马数字，而令人最烦恼的就是电影的版权声明（必须足够快地破译位于演职人员表末尾的“MCMLII”才能知道这部影片是哪一年发行的)。\n\n27只鸭子用罗马数字表示为：\n\n这个概念很容易理解：X表示10个划线，V表示5个划线。\n\n沿用到今天的罗马数字符号有：\n\nI V X L C D M\n\n7 我们的十个数字\n\n49","previous_page":48,"next_page":50}