{"id":1170,"date":"2022-10-29T00:42:24","date_gmt":"2022-10-28T16:42:24","guid":{"rendered":"https:\/\/www.lcettsg.cn\/code\/?p=1170"},"modified":"2025-02-08T16:48:24","modified_gmt":"2025-02-08T08:48:24","slug":"crc%e5%be%aa%e7%8e%af%e5%86%97%e4%bd%99%e6%a0%a1%e9%aa%8c","status":"publish","type":"post","link":"https:\/\/www.lcettsg.cn\/code\/?p=1170","title":{"rendered":"CRC\u5faa\u73af\u5197\u4f59\u6821\u9a8c"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1170\" class=\"elementor elementor-1170\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1248298a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1248298a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-72a97a74\" data-id=\"72a97a74\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-14b1789f elementor-widget elementor-widget-text-editor\" data-id=\"14b1789f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.23.0 - 05-08-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><!-- wp:paragraph --><\/p>\n<p>CRC\u7684\u5168\u79f0\u4e3aCyclic Redundancy Check\uff0c\u4e2d\u6587\u540d\u79f0\u4e3a\u5faa\u73af\u5197\u4f59\u6821\u9a8c\u3002\u5b83\u662f\u4e00\u7c7b\u91cd\u8981\u7684\u7ebf\u6027\u5206\u7ec4\u7801\uff0c\u7f16\u7801\u548c\u89e3\u7801\u65b9\u6cd5\u7b80\u5355\uff0c\u68c0\u9519\u548c\u7ea0\u9519\u80fd\u529b\u5f3a\uff0c\u5728\u901a\u4fe1\u9886\u57df\u5e7f\u6cdb\u5730\u7528\u4e8e\u5b9e\u73b0\u5dee\u9519\u63a7\u5236\u3002\u5b9e\u9645\u4e0a\uff0c\u9664\u6570\u636e\u901a\u4fe1\u5916\uff0cCRC\u5728\u5176\u5b83\u5f88\u591a\u9886\u57df\u4e5f\u662f\u5927\u6709\u7528\u6b66\u4e4b\u5730\u7684\u3002\u4f8b\u5982\u6211\u4eec\u8bfb\u8f6f\u76d8\u4e0a\u7684\u6587\u4ef6\uff0c\u4ee5\u53ca\u89e3\u538b\u4e00\u4e2aZIP\u6587\u4ef6\u65f6\uff0c\u5076\u5c14\u4f1a\u78b0\u5230\u201cBad CRC\u201d\u9519\u8bef\uff0c\u7531\u6b64\u5b83\u5728\u6570\u636e\u5b58\u50a8\u65b9\u9762\u7684\u5e94\u7528\u53ef\u7565\u89c1\u4e00\u6591\u3002<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:heading --><\/p>\n<h2>\u8ba1\u7b97\u8fc7\u7a0b\uff1a<\/h2>\n<p><!-- \/wp:heading --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p>1\u3001\u7531\u591a\u9879\u5f0f\u5f97\u5230\u9664\u6570n\u4f4d<br>2\u3001\u5c06\u9700\u8981\u53d1\u9001\u7684\u6570\u636e\u5de6\u79fb(n-1)\u4f4d\uff0c\u5f97\u5230\u4f59\u6570<br>3\u3001\u5c06\u7b2c\u4e8c\u6b65\u5f97\u5230\u7684\u4f59\u6570\u52a0\u539f\u59cb\u6570\u636e\u540e\u9762\u53d1\u9001<br>\u63a5\u6536\u65b9\u68c0\u9a8c\u65b9\u6cd5\uff1a\u5c06\u6536\u5230\u7684\u6570\u636e\u6a21\u201c2\u201d\u9664\u6cd5\u9664\u4ee5\u9664\u6570\uff0c\u4f59\u6570\u4e3a0\uff0c\u6570\u636e\u6b63\u786e\uff0c\u5426\u5219\u9519\u8bef\uff01<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:heading --><\/p>\n<h2>\u89c4\u8303\u4ecb\u7ecd<\/h2>\n<p><!-- \/wp:heading --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p>\u4e0b\u8868\u4e2d\u5217\u51fa\u4e86\u4e00\u4e9b\u89c1\u4e8e\u6807\u51c6\u7684CRC\u8d44\u6599\uff1a<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:image {\"id\":1180,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} --><\/p>\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"705\" height=\"390\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-25.png\" alt=\"\" class=\"wp-image-1180\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-25.png 705w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-25-500x277.png 500w\" sizes=\"(max-width: 705px) 100vw, 705px\" \/><\/figure>\n<p><!-- \/wp:image --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p>\u751f\u6210\u591a\u9879\u5f0f\u7684\u6700\u9ad8\u5e42\u6b21\u9879\u7cfb\u6570\u662f\u56fa\u5b9a\u76841\uff0c\u6545\u5728\u7b80\u8bb0\u5f0f\u4e2d\uff0c\u5c06\u6700\u9ad8\u76841\u7edf\u4e00\u53bb\u6389\u4e86\uff0c\u598204C11DB7\u5b9e\u9645\u4e0a\u662f104C11DB7\u3002 \u524d\u79f0CRC-CCITT\u3002ITU\u7684\u524d\u8eab\u662fCCITT\u3002<br>\u6ce8\u91ca\uff1a<br>1\u3001\u751f\u6210\u591a\u9879\u5f0f\u662f\u6807\u51c6\u89c4\u5b9a\u7684<br>2\u3001\u53d1\u9001\u65b9\u548c\u63a5\u6536\u65b9\u5fc5\u987b\u4e8b\u5148\u5546\u5b9a\u4e00\u4e2a\u751f\u6210\u591a\u9879\u5f0fG(x)\uff0c\u5176\u9ad8\u4f4d\u548c\u4f4e\u4f4d\u5fc5\u987b\u662f1\u3002<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p><strong>\u53ea\u80fd\u68c0\u6d4b\u53d1\u751f\u4e86\u9519\u8bef\uff0c\u4e0d\u80fd\u8bc6\u53d8\u9519\u8bef\u4f4d\u7f6e\u3002<\/strong><\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:heading --><\/p>\n<h2>\u4f8b\u9898<\/h2>\n<p><!-- \/wp:heading --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p>\u5f85\u53d1\u9001\u7684\u4fe1\u606f\u4e3a\uff1a101001\uff0c\u751f\u6210\u591a\u9879\u5f0f\u4e3a G(x)=x^3+x^2+1\uff0c\u8ba1\u7b97\u4f59\u6570\u3002<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p>\u539f\u59cb\u6570\u636e101001\uff0c\u540e\u9762\u52a0\u751f\u6210\u591a\u9879\u5f0f\u6700\u9ad8\u6b21\u5e42\u4e2a0\uff0c\u53733\u4e2a0\uff0c\u5f97\u5230101001<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">000<\/mark>\u3002<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p>\u9664\u6570\u7531\u751f\u6210\u591a\u9879\u5f0f\u7cfb\u6570\u51d1\u6210\uff0c\u53731101\u3002<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p>\u6a212\u8fd0\u7b97\uff1a\u5373\u5f02\u6216\u8fd0\u7b97<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:image {\"id\":1171,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} --><\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1803\" height=\"919\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-20.png\" alt=\"\" class=\"wp-image-1171\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-20.png 1803w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-20-1000x510.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-20-500x255.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-20-768x391.png 768w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-20-1536x783.png 1536w\" sizes=\"(max-width: 1803px) 100vw, 1803px\" \/><\/figure>\n<p><!-- \/wp:image --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p>\u63a5\u6536\u65b9\u6536\u5230\u7684\u4fe1\u606f\u4e3a101101001\uff0c\u5df2\u77e5\u751f\u6210\u591a\u9879\u5f0f\u4e3a G(x)=x^3+x^2+1\uff0c\u5224\u65ad\u662f\u5426\u8bef\u7801\u3002<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:image {\"id\":1172,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} --><\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1450\" height=\"691\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-21.png\" alt=\"\" class=\"wp-image-1172\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-21.png 1450w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-21-1000x477.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-21-500x238.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-21-768x366.png 768w\" sizes=\"(max-width: 1450px) 100vw, 1450px\" \/><\/figure>\n<p><!-- \/wp:image --><\/p>\n<p><!-- wp:image {\"id\":1175,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} --><\/p>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1246\" height=\"795\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-22.png\" alt=\"\" class=\"wp-image-1175\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-22.png 1246w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-22-1000x638.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-22-500x319.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-22-768x490.png 768w\" sizes=\"(max-width: 1246px) 100vw, 1246px\" \/><\/figure>\n<p><!-- \/wp:image --><\/p>\n<p><!-- wp:image {\"id\":1176,\"width\":840,\"height\":289,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} --><\/p>\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-23.png\" alt=\"\" class=\"wp-image-1176\" width=\"840\" height=\"289\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-23.png 1315w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-23-1000x344.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-23-500x172.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-23-768x265.png 768w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/figure>\n<p><!-- \/wp:image --><\/p>\n<p><!-- wp:image {\"id\":1177,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} --><\/p>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1078\" height=\"166\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-24.png\" alt=\"\" class=\"wp-image-1177\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-24.png 1078w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-24-1000x154.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-24-500x77.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/10\/image-24-768x118.png 768w\" sizes=\"(max-width: 1078px) 100vw, 1078px\" \/><\/figure>\n<p><!-- \/wp:image --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p>\u8ba1\u7b97\u5f97\u4f59\u6570\u4e3a1110\u3002\u53d1\u9001\u51fa\u7684\u539f\u59cb\u6570\u636e\u52a0\u5197\u4f59\u7801\u4e3a11010110111110\uff0c\u5982\u679c\u63a5\u6536\u523011010110111100; \u5982\u679c\u63a5\u6536\u523011010110111000<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p>\u53c2\u8003\uff1a<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p>https:\/\/blog.csdn.net\/qq_43441284\/article\/details\/124945020<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n<p><!-- wp:paragraph --><\/p>\n<p><a href=\"https:\/\/www.bilibili.com\/video\/BV1rJ411V7L5\/?spm_id_from=333.337.search-card.all.click&amp;vd_source=e1e965c6d34ccad0cc6841ecb58eb4a5\">https:\/\/www.bilibili.com\/video\/BV1rJ411V7L5\/?spm_id_from=333.337.search-card.all.click&amp;vd_source=e1e965c6d34ccad0cc6841ecb58eb4a5<\/a><\/p>\n<p><!-- \/wp:paragraph --><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>CRC\u7684\u5168\u79f0\u4e3aCyclic Redundancy Check\uff0c\u4e2d\u6587\u540d\u79f0\u4e3a\u5faa\u73af\u5197\u4f59\u6821\u9a8c\u3002\u5b83\u662f\u4e00\u7c7b\u91cd\u8981\u7684\u7ebf\u6027\u5206\u7ec4\u7801 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-1170","post","type-post","status-publish","format-standard","hentry","category-13"],"_links":{"self":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts\/1170"}],"collection":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1170"}],"version-history":[{"count":7,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts\/1170\/revisions"}],"predecessor-version":[{"id":4902,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts\/1170\/revisions\/4902"}],"wp:attachment":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}