{"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":17,"pdf_page":33,"physical_index":33,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"ea8bd961bc2640e6183a166f004c23422a4873a14dda71bd6d6fe3cf2fb18da0"},"chapter":"编码隐匿在计算机软硬件背后的语言","content":"例如，词组“you and'me”用布莱叶盲文表示成如下组合：\n\n注意，一个单词中每个字母所对应的点码单元之间都用一小块空白分开；而单词之间则用一个大的空格（实际上是没有凸点的点码单元）所分隔开来。\n\n这就是路易斯·布莱叶制订的布莱叶盲文的基本规范，至少它对于拉丁字母很适用。布莱叶还制订了表示重音符号字母的编码，这在法语中要经常要用到。注意这里没有“w”这个字母的编码，因为在传统的法语中不会用到它（别担心，这个字母最后会出现的，下文将作讲解)。到此为止，64个码字中只使用了25个。\n\n经过仔细的检查，你会发现，从我们列举的那个三排布莱叶盲文的例子（小写字母表）中，可以总结出一个规律。第一排（字母a到j）只用到了点码单元中最上面的四个点——第1、2、4和5点。第二排在复用了第一排的编码的基础上，把第3点改为凸点。第三排也沿用了同样的规律，只是将第3和6点改为凸点。\n\n自从路易斯·布莱叶发明布莱叶盲文以来，其应用已经扩展到各个领域。目前在英文出版物中最常用的盲文系统被称为二级布莱叶盲文(Grade2Braille)。二级布莱叶盲文使用了很多缩写，以便于保存树型结构和提高阅读速度。例如，如果字母的码字单独出现，它们就表示一个普通的单词。以下三排图样（包含“完整的”第三排）为我们展示了这些单词的码字。\n\n(none) but can do every from go have (none) just\n\n:: :: ::\n\nknowledge like more not (none) people quite rather so that\n\n: : : :: : :\n\nus very it you as and for of the with\n\n因此，短语“you andme”使用二级布莱叶盲文就可以表示为：\n\n3 布莱叶盲文与二进制码\n\n17","previous_page":16,"next_page":18}