{"id":5078,"date":"2023-06-28T21:44:56","date_gmt":"2023-06-28T13:44:56","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=5078"},"modified":"2023-06-28T21:45:00","modified_gmt":"2023-06-28T13:45:00","slug":"cxhryjymdjcyl","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/5078.html","title":{"rendered":"CRC\u5faa\u73af\u5197\u4f59\u6821\u9a8c\u7801\u7684\u7ea0\u9519\u539f\u7406"},"content":{"rendered":"\n<p>\u3000\u3000<strong><a href=\"https:\/\/baike.baidu.com\/item\/%E5%BE%AA%E7%8E%AF%E5%86%97%E4%BD%99%E6%A0%A1%E9%AA%8C%E7%A0%81\/10168758\" target=\"_blank\" data-type=\"URL\" data-id=\"https:\/\/baike.baidu.com\/item\/%E5%BE%AA%E7%8E%AF%E5%86%97%E4%BD%99%E6%A0%A1%E9%AA%8C%E7%A0%81\/10168758\" rel=\"noreferrer noopener nofollow\">\u5faa\u73af\u5197\u4f59\u6821\u9a8c\u7801<\/a><\/strong>(Cyclic Redundancy Check\uff0c\u7b80\u79f0<a href=\"https:\/\/baike.baidu.com\/item\/CRC\/15418674\" target=\"_blank\" data-type=\"URL\" data-id=\"https:\/\/baike.baidu.com\/item\/CRC\/15418674\" rel=\"noreferrer noopener nofollow\">CRC<\/a>)\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6570\u636e\u4f20\u8f93\u9519\u8bef\u6821\u9a8c\u65b9\u6cd5\u3002\u5b83\u901a\u8fc7\u5728\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u6dfb\u52a0\u4e00\u4e9b\u5197\u4f59\u4f4d\uff0c\u6765\u68c0\u6d4b\u548c\u7ea0\u6b63\u9519\u8bef\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdCRC\u7684\u7ea0\u9519\u539f\u7406\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001CRC\u7684\u57fa\u672c\u539f\u7406<\/h2>\n\n\n\n<p>\u3000\u3000CRC\u7684\u57fa\u672c\u539f\u7406\u662f\u5728\u53d1\u9001\u6570\u636e\u524d\uff0c\u5bf9\u6570\u636e\u8fdb\u884c\u7279\u6b8a\u7684\u5904\u7406\uff0c\u8ba1\u7b97\u51fa\u4e00\u4e2a\u6821\u9a8c\u7801\uff0c\u7136\u540e\u5c06\u8fd9\u4e2a\u6821\u9a8c\u7801\u9644\u52a0\u5728\u6570\u636e\u540e\u9762\u4e00\u8d77\u53d1\u9001\u3002\u63a5\u6536\u65b9\u5728\u6536\u5230\u6570\u636e\u540e\uff0c\u540c\u6837\u5bf9\u6570\u636e\u8fdb\u884c\u7279\u6b8a\u7684\u5904\u7406\u5e76\u8ba1\u7b97\u51fa\u4e00\u4e2a\u6821\u9a8c\u7801\uff0c\u7136\u540e\u5c06\u8fd9\u4e2a\u6821\u9a8c\u7801\u4e0e\u53d1\u9001\u65b9\u9644\u52a0\u7684\u6821\u9a8c\u7801\u8fdb\u884c\u6bd4\u8f83\u3002\u5982\u679c\u4e24\u4e2a\u6821\u9a8c\u7801\u76f8\u540c\uff0c\u5219\u8bf4\u660e\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u6ca1\u6709\u51fa\u73b0\u9519\u8bef\uff0c\u5426\u5219\u8bf4\u660e\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u4e86\u9519\u8bef\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001CRC\u7684\u8ba1\u7b97\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u3000\u3000CRC\u7684\u8ba1\u7b97\u65b9\u6cd5\u6bd4\u8f83\u590d\u6742\uff0c\u4f46\u662f\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\u7b80\u5316\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u30001. \u9996\u5148\uff0c\u786e\u5b9a\u4e00\u4e2a\u751f\u6210\u591a\u9879\u5f0f\u3002\u751f\u6210\u591a\u9879\u5f0f\u901a\u5e38\u662f\u4e00\u4e2a\u4e8c\u8fdb\u5236\u6570\uff0c\u957f\u5ea6\u4e3an+1.\u5176\u4e2dn\u662f\u6821\u9a8c\u7801\u7684\u4f4d\u6570\u3002\u5e38\u7528\u7684\u751f\u6210\u591a\u9879\u5f0f\u6709CRC-16\u3001CRC-32\u7b49\u3002<\/li>\n\n\n\n<li>\u3000\u30002. \u5c06\u8981\u53d1\u9001\u7684\u6570\u636e\u548c\u751f\u6210\u591a\u9879\u5f0f\u8fdb\u884c\u9664\u6cd5\u8fd0\u7b97\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5c06\u6570\u636e\u7684\u4e8c\u8fdb\u5236\u8868\u793a\u548c\u751f\u6210\u591a\u9879\u5f0f\u7684\u4e8c\u8fdb\u5236\u8868\u793a\u8fdb\u884c\u957f\u9664\u6cd5\u8fd0\u7b97\uff0c\u5f97\u5230\u7684\u4f59\u6570\u5c31\u662f\u6821\u9a8c\u7801\u3002<\/li>\n\n\n\n<li>\u3000\u30003. \u5c06\u6821\u9a8c\u7801\u9644\u52a0\u5728\u6570\u636e\u540e\u9762\u4e00\u8d77\u53d1\u9001\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001CRC\u7684\u7ea0\u9519\u539f\u7406<\/h2>\n\n\n\n<p>\u3000\u3000\u5f53\u63a5\u6536\u65b9\u6536\u5230\u6570\u636e\u540e\uff0c\u540c\u6837\u8fdb\u884c\u9664\u6cd5\u8fd0\u7b97\uff0c\u5f97\u5230\u4e00\u4e2a\u4f59\u6570\u3002\u5982\u679c\u4f59\u6570\u4e3a0.\u5219\u8bf4\u660e\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u6ca1\u6709\u51fa\u73b0\u9519\u8bef\u3002\u5426\u5219\uff0c\u8bf4\u660e\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u4e86\u9519\u8bef\u3002\u6b64\u65f6\uff0c\u63a5\u6536\u65b9\u53ef\u4ee5\u901a\u8fc7\u8ba1\u7b97\u51fa\u9519\u7684\u4f4d\u7f6e\uff0c\u6765\u7ea0\u6b63\u8fd9\u4e2a\u9519\u8bef\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5177\u4f53\u6765\u8bf4\uff0c\u5047\u8bbe\u63a5\u6536\u65b9\u5f97\u5230\u7684\u4f59\u6570\u4e3aR\uff0c\u53d1\u9001\u65b9\u9644\u52a0\u7684\u6821\u9a8c\u7801\u4e3aC\u3002\u5219R+C\u7684\u4e8c\u8fdb\u5236\u8868\u793a\u4e00\u5b9a\u80fd\u591f\u88ab\u751f\u6210\u591a\u9879\u5f0f\u6574\u9664\u3002\u56e0\u6b64\uff0c\u63a5\u6536\u65b9\u53ef\u4ee5\u5c06R+C\u7684\u4e8c\u8fdb\u5236\u8868\u793a\u518d\u6b21\u8fdb\u884c\u957f\u9664\u6cd5\u8fd0\u7b97\uff0c\u5f97\u5230\u7684\u4f59\u6570\u5c31\u662f\u51fa\u9519\u7684\u4f4d\u7f6e\u3002\u7136\u540e\uff0c\u63a5\u6536\u65b9\u53ef\u4ee5\u5c06\u51fa\u9519\u7684\u4f4d\u7f6e\u8fdb\u884c\u7ea0\u6b63\uff0c\u5e76\u91cd\u65b0\u8ba1\u7b97\u6821\u9a8c\u7801\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001CRC\u7684\u4f18\u7f3a\u70b9<\/h2>\n\n\n\n<p>\u3000\u3000CRC\u7684\u4f18\u70b9\u5728\u4e8e\u5b83\u80fd\u591f\u68c0\u6d4b\u548c\u7ea0\u6b63\u5927\u591a\u6570\u7684\u6570\u636e\u4f20\u8f93\u9519\u8bef\u3002\u6b64\u5916\uff0cCRC\u7684\u8ba1\u7b97\u901f\u5ea6\u6bd4\u8f83\u5feb\uff0c\u9002\u7528\u4e8e\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u3002\u7f3a\u70b9\u5728\u4e8e\uff0cCRC\u4e0d\u80fd\u68c0\u6d4b\u6240\u6709\u7684\u6570\u636e\u4f20\u8f93\u9519\u8bef\uff0c\u7279\u522b\u662f\u5728\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u4e86\u591a\u4e2a\u9519\u8bef\u65f6\uff0cCRC\u7684\u6548\u679c\u4f1a\u5927\u6253\u6298\u6263\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u603b\u4e4b\uff0cCRC\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6570\u636e\u4f20\u8f93\u9519\u8bef\u6821\u9a8c\u65b9\u6cd5\uff0c\u5b83\u901a\u8fc7\u5728\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u6dfb\u52a0\u4e00\u4e9b\u5197\u4f59\u4f4d\uff0c\u6765\u68c0\u6d4b\u548c\u7ea0\u6b63\u9519\u8bef\u3002\u867d\u7136CRC\u4e0d\u80fd\u68c0\u6d4b\u6240\u6709\u7684\u6570\u636e\u4f20\u8f93\u9519\u8bef\uff0c\u4f46\u662f\u5b83\u4f9d\u7136\u662f\u4e00\u79cd\u53ef\u9760\u7684\u6821\u9a8c\u65b9\u6cd5\uff0c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u6570\u636e\u4f20\u8f93\u573a\u666f\u4e2d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5faa\u73af\u5197\u4f59\u6821\u9a8c\u7801(Cyclic 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