{"version":"https://jsonfeed.org/version/1.1","title":"苏迟但到的主页","home_page_url":"https://kexohproject.pages.dev","feed_url":"https://kexohproject.pages.dev/json/","description":"<p>你好，欢迎访问个人主页！</p><p>擅长密码学，安全分析，数字水印等技术。</p><p>你可以联系我通过:findmykexin@gmail.com或者知乎私信。</p><p>我的知乎链接：<a href=\"https://www.zhihu.com/people/su-chi-dan-dao\" rel=\"noopener noreferrer\" target=\"_blank\">苏迟但到 - 知乎 (zhihu.com)</a></p><p>我的github链接：<a href=\"https://github.com/kexinoh\" rel=\"noopener noreferrer\" target=\"_blank\">kexinoh</a></p>","icon":"https://kexohcdn.gptapi.cyou/kexohproject/production/images/channel-2e54d141ee195646ca12a9d16507a908.jpg","favicon":"https://kexohcdn.gptapi.cyou/kexohproject/production/images/favicon-340a2925d02a0386f3b954a032834917.jpg","authors":[{"name":"苏迟但到"}],"language":"zh-cn","items":[{"id":"_a_RdERh51s","title":"130的二进制为什么第一位是1？","content_html":"<p data-pid=\"TlXFQTqL\">1.任何数（除了0）的二进制的第一位（最高位）都是1.</p><p data-pid=\"YpGEI1MR\">2.但是在计算机中，我们需要一些特殊的格式来保存数字。</p><p data-pid=\"jtFaJhqG\">哲学上说就是内容和形式的关系,形式适合内容，就促进内容的发展.(大雾)</p><p data-pid=\"N3-us0X9\">你的意思可能是为什么补码下130的第一位还是1.</p><p data-pid=\"yLz0VvyD\">这是因为130在int8下其实不能表示，int8的有效表示范围是[-128,127].</p><p data-pid=\"owqn3-pJ\">因此你应该使用的是uint8,而uint8的有效表示范围是[0,255]因此最高位是1，且还能正常表示。</p>","content_text":"1.任何数（除了0）的二进制的第一位（最高位）都是1.\n\n2.但是在计算机中，我们需要一些特殊的格式来保存数字。\n\n哲学上说就是内容和形式的关系,形式适合内容，就促进内容的发展.(大雾)\n\n你的意思可能是为什么补码下130的第一位还是1.\n\n这是因为130在int8下其实不能表示，int8的有效表示范围是[-128,127].\n\n因此你应该使用的是uint8,而uint8的有效表示范围是[0,255]因此最高位是1，且还能正常表示。","date_published":"2022-11-26T09:43:39.000Z","_microfeed":{"web_url":"https://kexohproject.pages.dev/i/1301-_a_RdERh51s/","json_url":"https://kexohproject.pages.dev/i/_a_RdERh51s/json/","rss_url":"https://kexohproject.pages.dev/i/_a_RdERh51s/rss/","guid":"_a_RdERh51s","status":"published","itunes:title":"New Article Title for iTunes","date_published_short":"Sat Nov 26 2022","date_published_ms":1669455819000}}],"_microfeed":{"microfeed_version":"0.1.2","base_url":"https://kexohproject.pages.dev","categories":[{"name":"Education","categories":[{"name":"Language Learning"}]},{"name":"Technology"}],"subscribe_methods":[{"name":"RSS","type":"rss","url":"https://kexohproject.pages.dev/rss/","image":"https://kexohproject.pages.dev/assets/brands/subscribe/rss.png","enabled":true,"editable":false,"id":"4KlfbtkEfzy"},{"name":"JSON","type":"json","url":"https://kexohproject.pages.dev/json/","image":"https://kexohproject.pages.dev/assets/brands/subscribe/json.png","enabled":true,"editable":false,"id":"DVFm7TYiNSq"}],"description_text":"你好，欢迎访问个人主页！\n\n擅长密码学，安全分析，数字水印等技术。\n\n你可以联系我通过:findmykexin@gmail.com或者知乎私信。\n\n我的知乎链接：苏迟但到 - 知乎 (zhihu.com)\n\n我的github链接：kexinoh","copyright":"©2024","itunes:type":"episodic","items_sort_order":"newest_first"}}