{"id":16840,"date":"2023-08-05T22:23:29","date_gmt":"2023-08-05T14:23:29","guid":{"rendered":"https:\/\/www.bookcard.net\/wordpress\/?p=16840"},"modified":"2023-08-05T22:23:37","modified_gmt":"2023-08-05T14:23:37","slug":"crc32","status":"publish","type":"post","link":"https:\/\/www.bookcard.net\/wordpress\/crc32\/","title":{"rendered":"CRC32\u6821\u9a57"},"content":{"rendered":"<figure id=\"attachment_16841\" aria-describedby=\"caption-attachment-16841\" style=\"width: 1280px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2023\/08\/CRC32.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-16841\" src=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2023\/08\/CRC32.jpg\" alt=\"CRC32\u6821\u9a57\" width=\"1280\" height=\"800\" srcset=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2023\/08\/CRC32.jpg 1280w, https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2023\/08\/CRC32-300x188.jpg 300w, https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2023\/08\/CRC32-768x480.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/a><figcaption id=\"caption-attachment-16841\" class=\"wp-caption-text\">CRC32\u6821\u9a57<\/figcaption><\/figure>\n<p>\u300eCRC32\u300f\u540c\u300eMD5\u300f\u300eSHA1\u300f\u58f9\u6a23,\u8a08\u300e\u8cb3\u8fdb\u5236\u300f\u6578\u503c\u300e\u6307\u7d0b\u300f,\u4f62\u901f\u5ea6\u5feb,HASH\u6821\u9a8c\u503c\u8086\u5b57\u7bc0.\u4e24DWORD\u503c\u76f8\u7b49\u6bd4\u8f03. \u9002\u5b9c\u7db2\u7edc\u6578\u64da\u50b3\u8f38, \u6821\u9a57\u6578\u64da\u4fc2\u54aa\u5b8c\u74a7.<\/p>\n<p><strong>DWORD <\/strong>CRC32_Table[256] = {<br \/>\n0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,<br \/>\n0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,<br \/>\n0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,<br \/>\n0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,<br \/>\n0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,<br \/>\n0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,<br \/>\n0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,<br \/>\n0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,<br \/>\n0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,<br \/>\n0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,<br \/>\n0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,<br \/>\n0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,<br \/>\n0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,<br \/>\n0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,<br \/>\n0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,<br \/>\n0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,<br \/>\n0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,<br \/>\n0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,<br \/>\n0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,<br \/>\n0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,<br \/>\n0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,<br \/>\n0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,<br \/>\n0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,<br \/>\n0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,<br \/>\n0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,<br \/>\n0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,<br \/>\n0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,<br \/>\n0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,<br \/>\n0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,<br \/>\n0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,<br \/>\n0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,<br \/>\n0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,<br \/>\n0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,<br \/>\n0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,<br \/>\n0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,<br \/>\n0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,<br \/>\n0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,<br \/>\n0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,<br \/>\n0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,<br \/>\n0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,<br \/>\n0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,<br \/>\n0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,<br \/>\n0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,<br \/>\n0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,<br \/>\n0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,<br \/>\n0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,<br \/>\n0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,<br \/>\n0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,<br \/>\n0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,<br \/>\n0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,<br \/>\n0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,<br \/>\n0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,<br \/>\n0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,<br \/>\n0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,<br \/>\n0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,<br \/>\n0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,<br \/>\n0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,<br \/>\n0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,<br \/>\n0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,<br \/>\n0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,<br \/>\n0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,<br \/>\n0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,<br \/>\n0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,<br \/>\n0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,<br \/>\n};<br \/>\n<em><br \/>\n<\/em><strong>DWORD <\/strong>CRC32(<strong>PBYTE <\/strong>buf, <strong>int <\/strong>len){<br \/>\n<strong>int <\/strong>i;<br \/>\n<strong>DWORD <\/strong>crc;<\/p>\n<p>crc = 0xffffffffL;<br \/>\n<strong>for <\/strong>(i = 0; i &lt; len; ++i )<br \/>\ncrc = CRC32_Table[(crc ^ buf[i]) &amp; 0xff] ^ (crc &gt;&gt; 8);<\/p>\n<p>crc = crc ^ 0xffffffffL;<br \/>\n<strong>return <\/strong>crc;<br \/>\n}<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u300eCRC32\u300f\u540c\u300eMD5\u300f\u300eSHA1\u300f\u58f9\u6a23,\u8a08\u300e\u8cb3\u8fdb\u5236\u300f\u6578\u503c\u300e\u6307\u7d0b\u300f,\u4f62\u901f\u5ea6\u5feb,HASH\u6821\u9a8c\u503c\u8086\u5b57\u7bc0.\u4e24DWO &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.bookcard.net\/wordpress\/crc32\/\" class=\"more-link\">\u7e7c\u7e8c\u95b1\u8b80 <span class=\"screen-reader-text\">CRC32\u6821\u9a57<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,13],"tags":[10,42],"class_list":["post-16840","post","type-post","status-publish","format-standard","hentry","category-algorithm","category-pc","tag-algorithm","tag-computer","entry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/16840","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/comments?post=16840"}],"version-history":[{"count":1,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/16840\/revisions"}],"predecessor-version":[{"id":16842,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/16840\/revisions\/16842"}],"wp:attachment":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/media?parent=16840"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/categories?post=16840"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/tags?post=16840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}