{"id":627,"date":"2019-05-15T12:03:54","date_gmt":"2019-05-15T12:03:54","guid":{"rendered":"http:\/\/li-yang.cn\/?p=627"},"modified":"2019-12-16T23:58:31","modified_gmt":"2019-12-16T15:58:31","slug":"ctf%e4%b8%ad%e4%ba%8c%e7%bb%b4%e7%a0%81%e9%a2%98%e7%9b%ae%e5%8f%8a%e7%ad%94%e9%a2%98%e6%8a%80%e5%b7%a7%e6%80%bb%e7%bb%93%ef%bc%88%e4%b8%80%ef%bc%89","status":"publish","type":"post","link":"https:\/\/li-yang.cn\/?p=627","title":{"rendered":"CTF\u4e2d\u4e8c\u7ef4\u7801\u9898\u76ee\u53ca\u7b54\u9898\u6280\u5de7\u603b\u7ed3\uff08\u4e00\uff09"},"content":{"rendered":"\n<p>\u524d\u8a00\uff1a\u4ece\u4e09\u56db\u5e74\u524d\u521a\u521a\u63a5\u89e6CTF\uff08Capture The Flag\uff0c\u7f51\u7edc\u5b89\u5168\u6bd4\u8d5b\u7684\u4e00\u79cd\uff09\u7b2c\u4e00\u6b21\u53c2\u52a0\u6bd4\u8d5b\uff0c\u5230\u6700\u8fd1\u7684HECC\uff08\u82f1\u56fd\u9ad8\u6821\u7f51\u7edc\u5b89\u5168\u6311\u6218\u8d5b\uff09\uff0c\u6211\u5728\u6742\u9879\u7c7b\u9898\u76ee\u4e2d\u9047\u5230\u8fc7\u5f88\u591a\u5173\u4e8e\u4e8c\u7ef4\u7801\u7684\u9898\u76ee\u3002\u6b64\u7c7b\u9898\u76ee\u9700\u8981\u53c2\u8d5b\u4eba\u5458\u5bf9\u4e8c\u7ef4\u7801\u7684\u751f\u6210\u539f\u7406\u6709\u6df1\u5165\u4e86\u89e3\uff0c\u540c\u65f6\u9700\u8981\u4f7f\u7528\u56fe\u50cf\u540e\u671f\u8f6f\u4ef6\u5bf9\u4e8c\u7ef4\u7801\u8fdb\u884c\u5904\u7406\uff0c\u6700\u7ec8\u5f97\u5230\u7b54\u6848\u3002\u4f5c\u4e3a\u6444\u5f71\u7231\u597d\u8005\uff0c\u6211\u5bf9\u56fe\u50cf\u5904\u7406\u975e\u5e38\u719f\u7ec3\uff0c\u7ecf\u5e38\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e9b\u51fa\u9898\u8005\u60f3\u4e0d\u5230\u7684Photoshop\u5c0f\u6280\u5de7\uff0c\u5f88\u5bb9\u6613\u5730\u5f97\u5230\u4e8c\u7ef4\u7801\u9898\u76ee\u7684\u7b54\u6848\u3002\u7531\u4e8e\u4e8c\u7ef4\u7801\u4e2dQR Code\u6700\u4e3a\u5e38\u89c1\uff0c\u56e0\u6b64\u672c\u6587\u9488\u5bf9\u4e8c\u7ef4\u7801\u4ec5\u8ba8\u8bbaQR Code\u3002\u7531\u4e8e\u57fa\u7840\u77e5\u8bc6\u548c\u9898\u76ee\u6574\u7406\u4e24\u90e8\u5206\u5185\u5bb9\u5747\u6709\u8f83\u5927\u7bc7\u5e45\uff0c\u56e0\u6b64\u672c\u6587\u5206\u4e00\u3001\u4e8c\u4e24\u90e8\u5206\u8fdb\u884c\u66f4\u65b0\u3002\u7b2c\u4e00\u90e8\u5206\u4e3aQR Code\u57fa\u7840\u77e5\u8bc6\uff0c\u7b2c\u4e8c\u90e8\u5206\u4e3aQR Code\u9898\u76ee\u53ca\u7b54\u9898\u6280\u5de7\u3002<\/p>\n\n\n\n<p><strong>1. \u4ec0\u4e48\u662fQR Code<\/strong><\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u89e3\u51b3CTF\u4e2d\u7684QR Code\u95ee\u9898\uff0c\u9996\u5148\u9700\u8981\u5bf9QR Code\u7684\u79cd\u7c7b\u3001\u57fa\u672c\u7ed3\u6784\u4ee5\u53ca\u751f\u6210\u7b97\u6cd5\u6709\u4e00\u5b9a\u4e86\u89e3\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; &nbsp; &nbsp;QR Code\uff08Quick Response Code\uff09\u662f\u4e8c\u7ef4\u7801\u7684\u4e00\u79cd\u7f16\u7801\u65b9\u5f0f\uff0c\u901a\u8fc7\u4e0e\u80cc\u666f\u989c\u8272\u5b58\u5728\u5bf9\u6bd4\u7684\u8272\u5757\u8868\u793a\u4e8c\u8fdb\u5236\u6570\u636e0\u548c1\uff0c\u901a\u8fc7\u8272\u5757\u7ec4\u6210\u7684\u4e8c\u7ef4\u77e9\u9635\u8868\u793a\u6570\u5b57\u3001\u82f1\u6587\u3001\u6c49\u5b57\u3001\u65e5\u6587\u7b49\u5185\u5bb9[1]\u3002\u8ba1\u7b97\u673a\u6216\u667a\u80fd\u7ec8\u7aef\u53ef\u4ee5\u901a\u8fc7\u56fe\u50cf\u8bc6\u522b\u8bbe\u5907\u5bf9\u5176\u8fdb\u884c\u89e3\u7801\u7684\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1994\u5e74\uff0c\u65e5\u672c\u4e30\u7530\u6c7d\u8f66\u7684\u96f6\u90e8\u4ef6\u4f9b\u5e94\u5546DENSO WAVE\u516c\u53f8\u7684\u539f\u660c\u5f18\u8bbe\u8ba1\u53d1\u660eQR Code[2]\u3002DENSO WAVE\u62e5\u6709QR Code\u7684\u4e13\u5229\u6743\uff0c\u4f46\u4e3a\u4e86\u8ba9\u66f4\u591a\u4eba\u4f7f\u7528QR Code\uff0c\u8be5\u516c\u53f8\u8868\u793a\u653e\u5f03\u884c\u4f7f\u4e13\u5229\u6743[3]\u3002QR Code\u57282000\u5e74\u88ab\u5236\u8ba2\u4e3aISO\/IEC18004\u6807\u51c6\uff0c\u5e76\u57282006\u5e74\u548c2015\u5e74\u4e24\u6b21\u88ab\u4f18\u5316[4]\u3002\u7531\u4e8eQR Code\u5177\u6709\u6bd4\u6761\u5f62\u7801\u5b58\u50a8\u4fe1\u606f\u91cf\u5927\uff0c\u6297\u5e72\u6270\u80fd\u529b\u5f3a\u7b49\u4f18\u70b9\uff0c\u88ab\u4eba\u4eec\u5e7f\u6cdb\u7528\u4e8e\u624b\u673a\u626b\u7801\u7b49\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p><strong>2. QR Code\u7684\u79cd\u7c7b<\/strong><\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u76ee\u524d\u5171\u67095\u79cd\u7c7b\u578b\u7684QR Code\uff0c\u4ed6\u4eec\u6709\u7740\u4e0d\u540c\u7684\u7279\u70b9\u548c\u7528\u9014\u3002\u5206\u522b\u662f[5]\uff1a\u65e5\u5e38\u4f7f\u7528\u6700\u5e7f\u6cdb\u7684QR Code Model 1\/2\uff08\u672c\u6587\u4e2d\u63d0\u5230\u7684QRCode\u4e3aModel 2\uff09\u3001\u53ea\u6709\u4e00\u4e2a\u5b9a\u4f4d\u56fe\u6848\u9002\u5408\u5c0f\u9762\u79ef\u5370\u5237\u7684Micro QR Code\u3001\u4fe1\u606f\u5bb9\u91cf\u66f4\u5927\u7684iQR Code\uff0c\u53ef\u4ee5\u5b58\u50a8\u9690\u79c1\u4fe1\u606f\u7684SQRC\uff08\u5916\u89c2\u548cModel 2\u6ca1\u6709\u533a\u522b\uff09\u548c\u53ef\u4ee5\u7075\u6d3b\u5d4c\u5165\u56fe\u6848\u7684Frame QR\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"667\" src=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-1024x667.jpeg\" alt=\"\" class=\"wp-image-732\" srcset=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-1024x667.jpeg 1024w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-300x195.jpeg 300w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-768x500.jpeg 768w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640.jpeg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>\u56fe1. QR Code\u7684\u79cd\u7c7b[5]<\/figcaption><\/figure><\/div>\n\n\n\n<p><strong>3. QR&nbsp;Code\u7684\u751f\u6210\u8fc7\u7a0b\u6982\u8ff0<\/strong><\/p>\n\n\n\n<p>&nbsp; &nbsp; &nbsp; &nbsp;\u9996\u5148\u4ecb\u7ecdQR Code\u7684\u7ed3\u6784\u3002\u6784\u6210QR Code\u7684\u57fa\u672c\u7ed3\u6784\u662f\u7801\u5143\uff08Module\uff09\uff0c\u5373\u56fe\u6848\u4e2d\u6700\u5c0f\u7684\u65b9\u5757[6]\u3002QR Code\u7531\u529f\u80fd\u6027\u56fe\u6848\uff08\u5b9a\u4f4d\u56fe\u6848\u3001\u5bf9\u9f50\u56fe\u6848\u3001\u65f6\u95f4\u56fe\u6848\u3001\u9694\u79bb\u7b26\uff09\u548c\u7f16\u7801\u533a\uff08\u683c\u5f0f\u4fe1\u606f\u3001\u7248\u672c\u4fe1\u606f\u3001\u6570\u636e\u53ca\u5bb9\u9519\u533a\uff09\u7ec4\u6210\u3002\u5176\u4e2d\u5b9a\u4f4d\u56fe\u6848\u4e3a\u56fa\u5b9a\u76847*7\u7801\u5143\uff0c\u4e2d\u95f4\u4e3a3*3\u7801\u5143\u5b9e\u5fc3\u6b63\u65b9\u5f62\uff0c\u5916\u56f4\u4e3a7*7\u7801\u5143\u7a7a\u5fc3\u6b63\u65b9\u5f62\u3002\u5bf9\u9f50\u56fe\u6848\u4e3a5*5\u7801\u5143\u56fe\u6848\u3002\u9664\u7248\u672c1\u4e0d\u9700\u8981\u5b9a\u4f4d\u56fe\u6848\u5916\uff0c\u5176\u4f59\u7248\u672c\u5b9a\u4f4d\u56fe\u6848\u6570\u91cf numbers = pow( (version \/ 7 -1) , 2 ) &#8211; 3\u3002\u65f6\u95f4\u56fe\u6848\u56fa\u5b9a\u4e3a\u9ed1\u767d\u76f8\u95f4\u7684\u56fe\u6848\u3002\u7f16\u7801\u533a\u6309\u7167\u56fe\u4e0b\u56fe\u6240\u793a\u7684\u56fa\u5b9a\u987a\u5e8f\u8fdb\u884c\u586b\u5145[7]\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; &nbsp; &nbsp;QR Code\u7684\u751f\u6210\u5927\u81f4\u5206\u4e3a5\u4e2a\u6b65\u9aa4\uff1a\u9009\u62e9\u7ea0\u9519\u7ea7\u522b\u548c\u53ef\u4ee5\u5bb9\u7eb3\u5bf9\u5e94\u6570\u636e\u91cf\u7684\u7248\u672c\u3001\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u548c\u7f16\u7801\u3001\u8ba1\u7b97\u5bb9\u9519\u4fe1\u606f\u3001\u8ba1\u7b97\u5e76\u6dfb\u52a0\u5408\u9002\u7684\u63a9\u7801\uff08Mask\uff09\u548c\u8ba1\u7b97\u7248\u672c\u53ca\u683c\u5f0f\u4fe1\u606f\u3002\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\u53ef\u4ee5\u5f97\u5230\u4e00\u4e2a\u5b8c\u6574\u7684QR&nbsp;Code\u56fe\u6848[7]\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"619\" src=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-1-1024x619.jpeg\" alt=\"\" class=\"wp-image-733\" srcset=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-1-1024x619.jpeg 1024w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-1-300x181.jpeg 300w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-1-768x464.jpeg 768w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-1.jpeg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>\u56fe2. QR Code\u56fe\u6848\u7684\u7ed3\u6784[7]<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1\" height=\"1\" src=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/05\/image-1.png\" alt=\"\" class=\"wp-image-629\"\/><\/figure>\n\n\n\n<p><strong>3.1&nbsp;\u9009\u62e9\u7ea0\u9519\u7ea7\u522b\u3001\u53ef\u4ee5\u5bb9\u7eb3\u5bf9\u5e94\u6570\u636e\u91cf\u7684\u7248\u672c<\/strong><\/p>\n\n\n\n<p>&nbsp; &nbsp; &nbsp; &nbsp;\u9996\u5148\u6839\u636e\u9700\u8981\u5b58\u50a8\u7684\u4fe1\u606f\u91cf\u4ee5\u53ca\u4e8c\u7ef4\u7801\u7528\u9014\u51b3\u5b9aQR Code\u7ea0\u9519\u7ea7\u522b\uff08Data Correction Level\uff09\u548c\u7248\u672c\uff08Version\uff09\u3002QR Code\u5171\u6709L\u3001M\u3001Q\u3001H\u56db\u4e2a\u7ea0\u9519\u7ea7\u522b\uff0c\u5206\u522b\u5bf9\u5e94\u7ea67%\u300115%\u300125%\u548c30%\u7684\u6062\u590d\u7387\u3002\u4f8b\u5982\uff0c\u5c06\u7f51\u5740\u201chttp:\/\/li-yang.cn\u201d\u4f7f\u7528QR Code\u7f16\u7801\uff0c\u5176\u5305\u542b17\u4f4d\u5b57\u7b26\uff0c\u82e5\u7528\u4e8e\u5c4f\u5e55\u663e\u793a\uff08\u4e0d\u6613\u4ea7\u751f\u906e\u6321\u6216\u7834\u635f\u7684\u60c5\u51b5\u4e0b\uff09\uff0c\u7ea0\u9519\u7ea7\u522bL\u5373\u53ef\uff0c\u67e5\u8be2\u7248\u672c\u53ca\u7ea0\u9519\u7ea7\u522b\u5bf9\u7167\u8868[8]\uff0c\u53ef\u4ee5\u5f97\u5230\u8be5\u7f51\u5740\u53ef\u4ee5\u4f7f\u7528\u7248\u672c1\u5b58\u50a8\u8be5\u7f51\u5740\u3002QR Code\u7684\u7248\u672c\u51b3\u5b9a\u4e86\u7801\u5143\u6570\uff08modules\uff09\uff0c\u7248\u672c\u548c\u7ea0\u9519\u7ea7\u522b\u5171\u540c\u51b3\u5b9a\u4e86\u53ef\u4ee5\u5b58\u50a8\u7684\u4fe1\u606f\u5bb9\u91cf\uff08Information Capacity\uff09[8]\uff0c\u7248\u672c1\u5bf9\u5e94\u7684\u7801\u5143\u6570\u4e3a21*21\u3002\u7801\u5143\u6570\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1amodule = 17 + 4 * version\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"642\" height=\"200\" src=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-2.jpeg\" alt=\"\" class=\"wp-image-734\" srcset=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-2.jpeg 642w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-2-300x93.jpeg 300w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" \/><figcaption>\u56fe3. \u7248\u672c\u4e0e\u7801\u5143\u6570\u7684\u5173\u7cfb[8]<\/figcaption><\/figure>\n\n\n\n<p><strong>3.2&nbsp;\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u548c\u586b\u5145<\/strong><\/p>\n\n\n\n<p>&nbsp; &nbsp; &nbsp; &nbsp;\u5bf9\u9700\u8981\u7f16\u7801\u7684\u6570\u636e\u4ee52\u4e3a\u5355\u4f4d\u8fdb\u884c\u5206\u7ec4\uff0c\u4f8b\u5982(ht)(tp)(:\/)(\/l)(i-)(ya)(ng)(.c)(n0)\u3002\u5bf9\u7167\u4ee5\u4e0b\u5b57\u6bcd\u6570\u5b57\u7f16\u7801\u8868\u8fdb\u884c\u7f16\u7801\uff0c\u5e76\u901a\u8fc7\u516c\u5f0f[7]\u8ba1\u7b97\u5f97\u5230\u4e8c\u8fdb\u5236\u503c\u6700\u7ec8\u5f97\u5230\u6570\u636e\u533a\u57df\u7684\u4fe1\u606f\u3002\u901a\u8fc7\u5bf9\u7248\u672c\u4fe1\u606f\u3001\u683c\u5f0f\u4fe1\u606f\u7684\u7f16\u7801\u5f97\u5230\u683c\u5f0f\u4fe1\u606f\u548c\u7248\u672c\u4fe1\u606f\u7684\u6570\u636e\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"734\" height=\"180\" src=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-3.jpeg\" alt=\"\" class=\"wp-image-735\" srcset=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-3.jpeg 734w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-3-300x74.jpeg 300w\" sizes=\"auto, (max-width: 734px) 100vw, 734px\" \/><figcaption>\u56fe4. \u5b57\u6bcd\u6570\u5b57\u7f16\u7801\u8868[7]<\/figcaption><\/figure>\n\n\n\n<p><strong>3.3 \u8ba1\u7b97\u5bb9\u9519\u4fe1\u606f<\/strong><br><\/p>\n\n\n\n<p>&nbsp; &nbsp; &nbsp; &nbsp;\u901a\u8fc7\u5bb9\u9519\u8ba1\u7b97\u516c\u5f0f\u5bf9\u4e0a\u4e00\u6b65\u9aa4\u4e2d\u5f97\u5230\u7684\u6570\u636e\u533a\u57df\u7684\u4fe1\u606f\u8fdb\u884c\u7f16\u7801\u3002\u6309\u7167ISO\/IEC 18004\u6807\u51c6\u5316\u6587\u6863\u4e2d\u7684\u63cf\u8ff0\uff0c\u8be5\u6b65\u9aa4\u8ba1\u7b97\u8fc7\u7a0b\u53ef\u4ee5\u901a\u8fc7\u903b\u8f91\u7535\u8def\u56fe\u8868\u793a\u3002[7]<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"708\" height=\"308\" src=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-4.jpeg\" alt=\"\" class=\"wp-image-736\" srcset=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-4.jpeg 708w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-4-300x131.jpeg 300w\" sizes=\"auto, (max-width: 708px) 100vw, 708px\" \/><figcaption>\u56fe5.\u00a0\u5bb9\u9519\u7801\u8ba1\u7b97\u903b\u8f91\u7535\u8def[7]<\/figcaption><\/figure>\n\n\n\n<p><strong>3.4&nbsp;\u8ba1\u7b97\u5e76\u6dfb\u52a0\u5408\u9002\u7684\u63a9\u7801\uff08Mask\uff09<\/strong><\/p>\n\n\n\n<p>&nbsp; &nbsp; &nbsp; &nbsp;\u901a\u8fc7\u4ee5\u4e0a\u8ba1\u7b97\u8fc7\u7a0b\uff0c\u5df2\u7ecf\u5f97\u5230\u6570\u636e\u53ca\u5bb9\u9519\u533a\u7684\u5185\u5bb9\u3002\u4e3a\u4e86\u9632\u6b62\u5927\u9762\u79ef\u6216\u8fde\u7eed\u51fa\u73b0\u9ed1\u8272\u6216\u767d\u8272\u56fe\u6848\u5e76\u9632\u6b62\u51fa\u73b0\u529f\u80fd\u6027\u56fe\u6848\u51fa\u73b0\u5728\u6570\u636e\u533a\u57df\uff0c\u9700\u8981\u5bf9\u6570\u636e\u533a\u57df\u7684\u56fe\u6848\u6dfb\u52a0\u63a9\u7801\u3002\u4e00\u5171\u67098\u4e2d\u63a9\u7801\u56fe\u6848\uff0c\u9700\u8981\u901a\u8fc7\u8ba1\u7b97\u8bc4\u4f30\u5f97\u5230\u54ea\u79cd\u63a9\u7801\u56fe\u6848\u66f4\u9002\u5408\u6b64\u5904\u7684\u6570\u636e\uff0c\u5e76\u5bf9\u6570\u636e\u548c\u63a9\u7801\u8fdb\u884c\u5f02\u6216\u7684\u64cd\u4f5c\uff0c\u5f97\u5230\u6700\u7ec8\u6570\u636e\u53bb\u56fe\u6848\u3002[7]<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"854\" src=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-5-1024x854.jpeg\" alt=\"\" class=\"wp-image-737\" srcset=\"https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-5-1024x854.jpeg 1024w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-5-300x250.jpeg 300w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-5-768x641.jpeg 768w, https:\/\/li-yang.cn\/wp-content\/uploads\/2019\/12\/640-5.jpeg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>\u56fe6.\u00a0\u63a9\u7801\u56fe\u6848[7]<\/figcaption><\/figure>\n\n\n\n<p><strong>3.5&nbsp;\u5199\u5165\u7248\u672c\u53ca\u683c\u5f0f\u4fe1\u606f<\/strong><\/p>\n\n\n\n<p>&nbsp; &nbsp; &nbsp; &nbsp;\u5bf9\u4e8c\u7ef4\u7801\u7684\u7248\u672c\u4fe1\u606f\u3001\u6a21\u5f0f\u4fe1\u606f\u3001\u63a9\u7801\u4fe1\u606f\u7b49\u53c2\u7167\u6807\u51c6\u5316\u6587\u6863\u5f97\u5230\u5bf9\u5e94\u7f16\u7801\u5199\u5165\u5bf9\u5e94\u533a\u57df\u3002\u6b64\u5904\u4e0d\u9700\u8981\u8fdb\u884c\u4e8c\u6b21\u7f16\u7801\u548c\u6dfb\u52a0\u63a9\u7801\u64cd\u4f5c\u3002[7]<\/p>\n\n\n\n<p>&nbsp; &nbsp; &nbsp; &nbsp;\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\u7684\u8fd0\u7b97\uff0c\u5f97\u5230\u6700\u7ec8\u7684\u5b8c\u6574\u56fe\u6848\u3002<\/p>\n\n\n\n<p>\u53c2\u8003\u94fe\u63a5\uff1a<br><\/p>\n\n\n\n<p>1.&nbsp;https:\/\/www.qrcode.com\/<\/p>\n\n\n\n<p>2.&nbsp;https:\/\/www.denso-wave.com\/zh\/technology\/vol1.html<\/p>\n\n\n\n<p>3.&nbsp;https:\/\/www.qrcode.com\/en\/history\/<\/p>\n\n\n\n<p>4.&nbsp;https:\/\/www.iso.org\/standard\/62021.html<\/p>\n\n\n\n<p>5.&nbsp;https:\/\/www.qrcode.com\/en\/codes\/<\/p>\n\n\n\n<p>6.&nbsp;https:\/\/www.qrcode.com\/en\/howto\/cell.html<\/p>\n\n\n\n<p>6.&nbsp;https:\/\/www.qrcode.com\/en\/about\/error_correction.html<\/p>\n\n\n\n<p>7.&nbsp;ISO\/IEC 18004-2015&nbsp;Information technology \u2014 Automatic identification and data capture techniques \u2014 QR Code bar code symbology specification<\/p>\n\n\n\n<p>8.&nbsp;https:\/\/www.qrcode.com\/en\/about\/version.html<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00\uff1a\u4ece\u4e09\u56db\u5e74\u524d\u521a\u521a\u63a5\u89e6CTF\uff08Capture T [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[9,25],"class_list":["post-627","post","type-post","status-publish","format-standard","hentry","category-4","tag-ctf","tag-photoshop"],"_links":{"self":[{"href":"https:\/\/li-yang.cn\/index.php?rest_route=\/wp\/v2\/posts\/627","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/li-yang.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/li-yang.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/li-yang.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/li-yang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=627"}],"version-history":[{"count":1,"href":"https:\/\/li-yang.cn\/index.php?rest_route=\/wp\/v2\/posts\/627\/revisions"}],"predecessor-version":[{"id":738,"href":"https:\/\/li-yang.cn\/index.php?rest_route=\/wp\/v2\/posts\/627\/revisions\/738"}],"wp:attachment":[{"href":"https:\/\/li-yang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/li-yang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/li-yang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}