\u65e7\u9898\u5355\u91cc\u6709\u4e2a\u95ee\u9898：\u201c\u4f7f\u7528\u7b49\u4ef7\u7c7b\u4e0e\u8fb9\u754c\u503c\u7684\u65b9\u6cd5，\u5bf9\u8eab\u4efd\u8bc1\u53f7\u5199\u6d4b\u8bd5\u7528\u4f8b\u3002\u201d<\/p>\n
\u7b2c\u4e00\u6b65\u5f88\u5bb9\u6613\u60f3\u5230\u957f\u5ea6：17\u4f4d\u300118\u4f4d\u300119\u4f4d\u3002\u518d\u8865\u7a7a\u5b57\u7b26\u4e32\u3001\u5b57\u6bcd\u3001\u7279\u6b8a\u5b57\u7b26，\u4f3c\u4e4e\u5df2\u7ecf\u5217\u51fa\u4e0d\u5c11\u7528\u4f8b\u4e86\u3002<\/p>\n
\u4f46\u5148\u95ee\u4e00\u53e5：\u62ff\u523018\u4e2a\u7b26\u5408\u8981\u6c42\u7684\u5b57\u7b26\u4ee5\u540e，\u6211\u4eec\u5230\u5e95\u9a8c\u8bc1\u4e86\u4ec0\u4e48？<\/p>\n
\u672c\u6587\u53ea\u8ba8\u8bba18\u4f4d\u516c\u6c11\u8eab\u4efd\u53f7\u7801\u7684\u51e0\u4e2a\u79bb\u7ebf\u68c0\u67e5\u5c42\u6b21，\u4e0d\u5904\u740615\u4f4d\u65e7\u683c\u5f0f，\u4e5f\u4e0d\u505a\u771f\u5b9e\u8eab\u4efd\u6838\u9a8c\u3002\u6240\u6709\u4e3b\u6848\u4f8b\u7edf\u4e00\u7528\u4eba\u4e3a\u8bbe\u7f6e\u7684 000000 \u524d\u7f00，\u5b83\u4e0d\u662f\u672c\u6587\u8ba4\u53ef\u7684\u6709\u6548\u5730\u533a\u4ee3\u7801；\u4e0d\u4f7f\u7528\u771f\u5b9e\u4e2a\u4eba\u6570\u636e，\u4e0d\u628a\u8fd9\u4e9b\u5b57\u7b26\u4e32\u62ff\u53bb\u5b9e\u9645\u7f51\u7ad9\u6ce8\u518c\u3002<\/p>\n
\u6309\u7167GB 11643\u20141999\u7684\u7ed3\u6784\u89c4\u5b9a，\u8fd918\u4e2a\u4f4d\u7f6e\u4e0d\u662f\u540c\u4e00\u7c7b\u4e1c\u897f：\u524d\u9762\u6709\u5730\u5740\u3001\u65e5\u671f\u548c\u987a\u5e8f\u7801，\u6700\u540e\u4e00\u4f4d\u6839\u636e\u524d17\u4f4d\u8ba1\u7b97\u3002\u672b\u4f4d\u8fd8\u53ef\u80fd\u662f X，\u6240\u4ee5\u201c\u5fc5\u987b18\u4e2a\u6570\u5b57\u201d\u672c\u8eab\u5c31\u4e0d\u51c6\u786e\u3002<\/p>\n
\u6211\u4eec\u5148\u62ff\u4e0b\u9762\u8fd9\u4e2a\u5408\u6210\u5b57\u7b26\u4e32\u505a\u5b9e\u9a8c\u3002\u4e3a\u4e86\u770b\u4f4d\u7f6e，\u56fe\u91cc\u52a0\u4e86\u7a7a\u683c，\u5b9e\u9645\u8f93\u5165\u6ca1\u6709\u7a7a\u683c：<\/p>\n
000000 20000229 001 0
\n\u524d\u7f00 \u65e5\u671f \u987a\u5e8f \u6821\u9a8c
\n6\u4f4d 8\u4f4d 3\u4f4d 1\u4f4d<\/p>\n
\u68c0\u67e5\u957f\u5ea6\u548c\u5b57\u7b26，\u53ea\u80fd\u786e\u8ba4\u8fd9\u4e9b\u4f4d\u7f6e\u91cc\u653e\u5f97\u4e0b\u76f8\u5e94\u5b57\u7b26\u3002\u5b83\u4e0d\u4f1a\u81ea\u52a8\u77e5\u90532\u6708\u6709\u591a\u5c11\u5929，\u66f4\u4e0d\u4f1a\u77e5\u9053\u8fd9\u4e2a\u53f7\u7801\u6709\u6ca1\u6709\u5b9e\u9645\u5206\u914d\u7ed9\u67d0\u4e2a\u4eba\u3002<\/p>\n
\u5148\u628a\u7a0b\u5e8f\u7684\u8fd4\u56de\u503c\u62c6\u5f00：<\/p>\n
shape： \u957f\u5ea6\u4e0e\u5b57\u7b26\u7b26\u5408\u672c\u4f8b\u8981\u6c42\u5417
\ndate： \u65e5\u671f\u7801\u5728\u516c\u5386\u4e2d\u5b58\u5728\u5417
\nchecksum： \u6700\u540e\u4e00\u4f4d\u4e0e\u8ba1\u7b97\u7ed3\u679c\u4e00\u81f4\u5417<\/p>\n
\u8fd9\u4e09\u4e2a\u68c0\u67e5\u70b9\u5148\u522b\u6025\u7740\u5408\u6210\u4e00\u4e2a isValid\u3002\u7b49\u4e00\u4f1a\u513f\u6d4b\u8bd5\u5931\u8d25\u65f6，\u6211\u4eec\u8fd8\u8981\u9760\u5b83\u4eec\u5224\u65ad\u662f\u54ea\u5c42\u89c4\u5219\u5728\u8d77\u4f5c\u7528\u3002<\/p>\n
\u672c\u4f8b\u7684\u8f93\u5165\u7b56\u7565\u662f：\u53ea\u6536\u5b57\u7b26\u4e32，\u4e0d\u81ea\u52a8\u53bb\u6389\u7a7a\u683c；\u524d17\u4f4d\u53ea\u6536ASCII\u6570\u5b57，\u672b\u4f4d\u5141\u8bb8\u6570\u5b57\u6216X，\u8f93\u5165\u5c0f\u5199x\u65f6\u6309\u5927\u5199\u6bd4\u8f83\u3002\u5c0f\u5199\u548c\u7a7a\u683c\u600e\u4e48\u5904\u7406，\u5e94\u8be5\u5148\u4e0e\u9700\u6c42\u7ea6\u5b9a，\u4e0d\u80fd\u4ec5\u51ed\u7a0b\u5e8f\u5199\u8d77\u6765\u65b9\u4fbf\u5c31\u66ff\u4ea7\u54c1\u51b3\u5b9a\u3002<\/p>\n
\u73b0\u5728\u53ea\u6539\u56fe\u91cc\u7684\u5e74\u4efd，\u628a 20000229 \u6539\u6210 20010229\u3002<\/p>\n
2000\u5e74\u67092\u670829\u65e5，2001\u5e74\u6ca1\u6709\u3002\u8fd9\u4e2a\u5dee\u522b\u5df2\u7ecf\u4e0d\u5c5e\u4e8e\u5b57\u7b26\u4e32\u957f\u5ea6\u4e86，\u4e24\u4e2a\u65e5\u671f\u7801\u90fd\u662f8\u4f4d\u6570\u5b57\u3002<\/p>\n
\u53ef\u662f\u8fd8\u4e0d\u80fd\u9a6c\u4e0a\u62ff\u65b0\u5b57\u7b26\u4e32\u53bb\u6d4b\u65e5\u671f\u3002\u521a\u624d\u6539\u4e86\u524d17\u4f4d，\u6700\u540e\u7684\u6821\u9a8c\u5b57\u7b26\u53ef\u80fd\u4e5f\u8be5\u53d8\u3002\u5982\u679c\u4ecd\u7136\u6cbf\u7528\u65e7\u7684\u672b\u4f4d，\u6211\u4eec\u53ef\u80fd\u540c\u65f6\u5f04\u9519\u4e86\u65e5\u671f\u548c\u6821\u9a8c\u7801\u3002<\/p>\n
\u4e3a\u4e86\u53ea\u89c2\u5bdf\u65e5\u671f\u68c0\u67e5，\u9700\u8981\u7ed9\u8fd9\u4e2a\u201c\u4e0d\u5b58\u5728\u7684\u65e5\u671f\u201d\u91cd\u65b0\u7b97\u4e00\u4e2a\u5339\u914d\u7684\u6821\u9a8c\u5b57\u7b26：<\/p>\n
A：000000 20000229 001 0
\n \u65e5\u671f\u5b58\u5728，\u6821\u9a8c\u5339\u914d<\/p>\n
B：000000 20010229 001 8
\n \u65e5\u671f\u4e0d\u5b58\u5728，\u6821\u9a8c\u4ecd\u5339\u914d<\/p>\n
\u8fd0\u884c\u540e，B\u7684\u7ed3\u679c\u662f：<\/p>\n
shape: true
\ndate: false
\nchecksum: true<\/p>\n
\u6821\u9a8c\u7801\u7b97\u5bf9\u4e86，\u6839\u672c\u4e0d\u59a8\u788d\u524d\u9762\u7684\u65e5\u671f\u662f\u5047\u7684\u3002 \u6821\u9a8c\u8ba1\u7b97\u5e76\u4e0d\u67e5\u8be2\u65e5\u5386，\u5b83\u53ea\u662f\u6309\u5b57\u7b26\u505a\u8fd0\u7b97\u3002<\/p>\n
\u8fd9\u6837\u6784\u9020\u6837\u672c\u8fd8\u6709\u4e2a\u7528\u5904：\u5982\u679c\u65e5\u671f\u68c0\u67e5\u88ab\u4eba\u5220\u4e86，B\u5c31\u80fd\u628a\u95ee\u9898\u66b4\u9732\u51fa\u6765\u3002\u5047\u5982B\u7684\u6821\u9a8c\u7801\u4e5f\u9519\u4e86，\u7a0b\u5e8f\u53ef\u80fd\u4ecd\u7136\u62d2\u7eddB，\u8ba9\u6211\u4eec\u8bef\u4ee5\u4e3a\u65e5\u671f\u68c0\u67e5\u6ca1\u95ee\u9898\u3002<\/p>\n
\u6240\u4ee5\u201c\u975e\u6cd5\u6837\u672c\u88ab\u62d2\u7edd\u201d\u8fd8\u4e0d\u591f\u3002\u6211\u4eec\u5f97\u77e5\u9053，\u5b83\u662f\u4e0d\u662f\u88ab\u60f3\u6d4b\u8bd5\u7684\u90a3\u6761\u89c4\u5219\u62d2\u7edd\u7684\u3002<\/p>\n
\u5148\u4e0d\u7ba1\u5b57\u7b26\u4e32\u8868\u8fbe\u4ec0\u4e48，\u628a\u524d17\u4e2a\u6570\u5b57\u6309\u4f4d\u7f6e\u4e58\u4e0a\u6743\u91cd，\u518d\u6c42\u548c\u3002\u6743\u91cd\u548c\u4f59\u6570\u6620\u5c04\u6765\u81ea\u6807\u51c6\u7684\u6821\u9a8c\u516c\u5f0f\u4e0e\u8868\u683c，\u5b8c\u6574\u5b9e\u73b0\u653e\u5728\u540e\u9762\u3002<\/p>\n
\u5bf9\u4e8eA，\u524d\u516d\u4f4d\u90fd\u662f0，\u53ef\u4ee5\u5148\u5ffd\u7565\u90a3\u4e9b\u4e58\u79ef\u3002\u5269\u4e0b\u51e0\u4e2a\u975e\u96f6\u4e58\u79ef\u5982\u4e0b：<\/p>\n
20000229 001 \u5bf9\u5e94\u7684\u975e\u96f6\u4e58\u79ef：
\n2\u00d72 + 2\u00d79 + 2\u00d710 + 9\u00d75 + 1\u00d72
\n= 4 + 18 + 20 + 45 + 2
\n= 89<\/p>\n
89 % 11 = 1
\n\u4f59\u65701，\u5bf9\u5e94\u6821\u9a8c\u5b57\u7b260<\/p>\n
\u4ece2000\u6539\u52302001\u65f6，\u5e74\u4efd\u6700\u540e\u4e00\u4f4d\u4ece0\u53d8\u62101，\u5b83\u5bf9\u5e94\u7684\u6743\u91cd\u662f3\u3002\u56e0\u6b64\u603b\u548c\u4ece89\u53d8\u621092，\u4f59\u6570\u4ece1\u53d8\u62104，\u5bf9\u5e94\u5b57\u7b26\u4ece0\u53d8\u62108\u3002<\/p>\n
\u8fd9\u91cc\u7684\u53d8\u5316\u5b8c\u5168\u53ef\u4ee5\u7b97\u51fa\u6765，\u5374\u6ca1\u6709\u4e00\u6b65\u5728\u95ee\u201c2001\u5e74\u662f\u4e0d\u662f\u95f0\u5e74\u201d\u3002\u8fd9\u5c31\u662fB\u80fd\u591f\u540c\u65f6\u6ee1\u8db3\u201c\u65e5\u671f\u4e0d\u5b58\u5728\u201d\u548c\u201c\u6821\u9a8c\u5339\u914d\u201d\u7684\u539f\u56e0\u3002<\/p>\n
\u53cd\u8fc7\u6765，\u5982\u679c\u8981\u6d4b\u6821\u9a8c\u5b57\u7b26\u9519\u8bef，\u5c31\u4fdd\u6301\u65e5\u671f\u4e0d\u53d8，\u53ea\u628aA\u6700\u540e\u76840\u6362\u62101：<\/p>\n
C：000000 20000229 001 1<\/p>\n
shape: true
\ndate: true
\nchecksum: false<\/p>\n
\u73b0\u5728B\u548cC\u5404\u81ea\u627f\u62c5\u4e00\u4e2a\u660e\u786e\u7684\u68c0\u67e5\u76ee\u6807，\u4e0d\u662f\u4e00\u5806\u4e0d\u77e5\u9053\u9519\u5728\u54ea\u91cc\u7684\u968f\u673a\u5b57\u7b26\u4e32\u3002<\/p>\n
\u56de\u5934\u8865\u7528\u4f8b，\u5c31\u6709\u65b9\u5411\u4e86\u3002<\/p>\n
\u957f\u5ea6\u53ef\u4ee5\u6d4b17\u300118\u300119\u4f4d；\u65e5\u671f\u8981\u770b\u5b83\u81ea\u5df1\u7684\u8fb9\u754c，\u4f8b\u59824\u670830\u65e5\u4e0e4\u670831\u65e5，2\u6708\u6700\u540e\u4e00\u5929，\u4ee5\u53ca1900\u5e74\u4e0e2000\u5e74\u7684\u95f0\u5e74\u5dee\u522b\u3002\u4e0d\u80fd\u628a\u5e74\u4efd\u80fd\u88ab4\u6574\u9664\u5c31\u4e00\u5f8b\u5f53\u95f0\u5e74\u3002<\/p>\n
\u8fd9\u4e9b\u65e5\u671f\u7528\u4f8b\u4e5f\u90fd\u7531\u6d4b\u8bd5\u751f\u6210\u5339\u914d\u7684\u6821\u9a8c\u5b57\u7b26，\u8ba9\u65e5\u671f\u5c42\u5355\u72ec\u627f\u62c5\u5224\u65ad\u3002<\/p>\n
\u5b57\u7b26\u8fd8\u8981\u770b\u4f4d\u7f6e：\u672b\u4f4d\u7684X\u4e0e\u524d17\u4f4d\u51fa\u73b0X，\u662f\u4e24\u79cd\u4e0d\u540c\u8f93\u5165\u3002\u4e00\u4e2a\u524d\u7aef\u5141\u8bb8\u7c98\u8d34\u7684\u5168\u89d2\u6570\u5b57，\u89c6\u89c9\u4e0a\u50cf\u6570\u5b57，\u4f46\u4e0d\u5728\u672c\u4f8b\u7ea6\u5b9a\u7684ASCII\u96c6\u5408\u91cc\u3002<\/p>\n
\u8fd8\u6709\u8f93\u5165\u7c7b\u578b\u3002\u6807\u8bc6\u7b26\u4e0d\u662f\u62ff\u6765\u52a0\u51cf\u7684\u6570\u91cf：\u4f20\u5165JavaScript\u7684Number\u4e4b\u524d，\u524d\u5bfc\u96f6\u53ef\u80fd\u5df2\u7ecf\u6d88\u5931；\u8f83\u5927\u7684\u6574\u6570\u8fd8\u5b58\u5728\u7cbe\u786e\u8868\u793a\u95ee\u9898\u3002\u672c\u6587\u76f4\u63a5\u62d2\u7edd\u975e\u5b57\u7b26\u4e32，\u4e0d\u505a\u6084\u6084\u7684\u7c7b\u578b\u8f6c\u6362\u3002<\/p>\n
\u8fd9\u6837\u518d\u53bb\u8bf4\u7b49\u4ef7\u7c7b，\u4f1a\u66f4\u5177\u4f53：\u540c\u6837\u662f\u201c\u4e0d\u80fd\u901a\u8fc7\u201d，\u957f\u5ea6\u4e0d\u5bf9\u3001\u5b57\u7b26\u4f4d\u7f6e\u4e0d\u5bf9\u3001\u65e5\u671f\u4e0d\u5b58\u5728\u3001\u6821\u9a8c\u4e0d\u5339\u914d，\u5206\u522b\u9700\u8981\u4e0d\u540c\u7684\u4ee3\u8868\u6837\u672c\u3002\u8fb9\u754c\u503c\u5219\u56f4\u7ed5\u5404\u5c42\u771f\u5b9e\u7684\u4e34\u754c\u6761\u4ef6\u9009，\u4e0d\u662f\u5bf9\u6bcf\u4e2a\u6570\u5b57\u90fd\u673a\u68b0\u52a0\u4e00\u51cf\u4e00\u3002<\/p>\n
\u518d\u770bA\u3002\u6211\u4eec\u7684\u51fd\u6570\u4f1a\u8fd4\u56de\u4e09\u4e2atrue，\u4f46\u524d\u7f00 000000 \u6839\u672c\u6ca1\u6709\u7ecf\u8fc7\u5730\u533a\u4ee3\u7801\u9a8c\u8bc1\u3002<\/p>\n
\u751a\u81f3\u628a\u65e5\u671f\u6362\u62102099\u5e74\u7684\u4e00\u4e2a\u65e5\u5386\u4e0a\u5b58\u5728\u7684\u65e5\u671f，\u91cd\u65b0\u914d\u597d\u6821\u9a8c\u5b57\u7b26，\u8fd9\u4e2a\u51fd\u6570\u4e5f\u4f1a\u653e\u884c\u3002\u56e0\u4e3a\u5b83\u68c0\u67e5\u7684\u662f\u201c\u516c\u5386\u65e5\u671f\u5b58\u5728\u201d，\u6ca1\u6709\u627f\u8bfa\u201c\u51fa\u751f\u65e5\u671f\u4e0d\u80fd\u665a\u4e8e\u4eca\u5929\u201d，\u66f4\u6ca1\u6709\u68c0\u67e5\u4e1a\u52a1\u5e74\u9f84\u8303\u56f4\u3002<\/p>\n
\u6240\u4ee5\u8fd4\u56de\u503c\u53eb offlineChecksPassed，\u4e0d\u662f\u201c\u8eab\u4efd\u8bc1\u6709\u6548\u201d；\u8fd8\u660e\u786e\u5e26\u7740：<\/p>\n
identityVerified: false<\/p>\n
\u8fd9\u4e0d\u662f\u518d\u52a0\u4e00\u4e2a\u5b57\u6bb5\u5c31\u8ba9\u7a0b\u5e8f\u53d8\u5b89\u5168\u4e86，\u800c\u662f\u5728\u63d0\u9192\u8c03\u7528\u8005\u522b\u628a\u68c0\u67e5\u7ed3\u679c\u8bfb\u8fc7\u5934\u3002\u5730\u5740\u4ee3\u7801\u53ca\u5176\u5386\u53f2\u9002\u7528\u8303\u56f4\u3001\u987a\u5e8f\u7801\u5206\u914d\u3001\u5177\u4f53\u4e1a\u52a1\u65e5\u671f\u89c4\u5219，\u90fd\u4e0d\u5728\u8fd9\u4e09\u4e2a\u68c0\u67e5\u91cc\u9762；\u53f7\u7801\u662f\u5426\u771f\u5b9e\u3001\u662f\u5426\u5c5e\u4e8e\u63d0\u4ea4\u8005，\u4e5f\u4e0d\u80fd\u4ece\u4e00\u4e2a\u79bb\u7ebf\u6821\u9a8c\u516c\u5f0f\u63a8\u51fa\u3002<\/p>\n
\u5982\u679c\u9700\u6c42\u771f\u8981\u9a8c\u8bc1\u8fd9\u4e9b，\u5c31\u8981\u5206\u522b\u8865\u5bf9\u5e94\u7684\u6570\u636e\u548c\u6d41\u7a0b，\u4e0d\u80fd\u628a\u8fd9\u4e2a\u51fd\u6570\u6539\u4e2a\u540d\u5b57\u4fbf\u5f53\u4f5c\u5df2\u7ecf\u5b9e\u73b0\u3002<\/p>\n
\u4e0b\u9762\u4e24\u4e2a\u6587\u4ef6\u4f7f\u7528Node.js，\u5b9e\u9a8c\u7248\u672c\u4e3a22.14.0\u3002\u4e0d\u4f9d\u8d56\u7b2c\u4e09\u65b9\u5305，\u4e5f\u4e0d\u8bbf\u95ee\u7f51\u7edc\u3002<\/p>\n
id-layers.mjs：<\/p>\n
const WEIGHTS = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
\nconst CHECKS = '10X98765432';<\/p>\n
export function checkCharacter(body) {
\n if (typeof body !== 'string' || body.length !== 17 || !\/^[0-9]{17}$\/.test(body)) {
\n throw new TypeError('Expected 17 ASCII digits');
\n }
\n let sum = 0;
\n for (let i = 0; i < body.length; i++) sum += Number(body[i]) * WEIGHTS[i];
\n return CHECKS[sum % 11];
\n}<\/p>\n
function calendarDate(code) {
\n const year = Number(code.slice(0, 4));
\n const month = Number(code.slice(4, 6));
\n const day = Number(code.slice(6, 8));
\n if (year < 1 || month < 1 || month > 12) return false;
\n const leap = year % 400 === 0 || (year % 4 === 0 && year % 100 !== 0);
\n const days = [31, leap ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
\n return day >= 1 && day <= days[month – 1];
\n}<\/p>\n
export function inspect18(input) {
\n const result = { shape: false, date: null, checksum: null,
\n offlineChecksPassed: false, identityVerified: false };
\n if (typeof input !== 'string') return { …result, reason: 'type' };
\n if (input.length !== 18 || !\/^[0-9]{17}[0-9Xx]$\/.test(input)) {
\n return { …result, reason: 'shape' };
\n }
\n const date = calendarDate(input.slice(6, 14));
\n const checksum = checkCharacter(input.slice(0, 17)) === input[17].toUpperCase();
\n return { shape: true, date, checksum, offlineChecksPassed: date && checksum,
\n identityVerified: false, reason: !date ? 'date' : !checksum ? 'checksum' : 'offline_only' };
\n}<\/p>\n
\u65e5\u671f\u7528\u660e\u786e\u7684\u6708\u5929\u6570\u548c\u95f0\u5e74\u5224\u65ad，\u4e0d\u501f\u52a9\u4f1a\u81ea\u52a8\u5f52\u4e00\u5316\u65e5\u671f\u7684\u6784\u9020\u8fc7\u7a0b\u3002\u5f62\u72b6\u672a\u901a\u8fc7\u65f6，\u65e5\u671f\u548c\u6821\u9a8c\u5b57\u7b26\u8fd4\u56denull，\u8868\u793a\u5c1a\u672a\u6267\u884c，\u800c\u4e0d\u662f\u628a\u201c\u6ca1\u68c0\u67e5\u201d\u5199\u6210\u201c\u68c0\u67e5\u5931\u8d25\u201d\u3002<\/p>\n
id-layers.test.mjs：<\/p>\n
import test from 'node:test';
\nimport assert from 'node:assert\/strict';
\nimport { checkCharacter, inspect18 } from '.\/id-layers.mjs';<\/p>\n
\/\/ Independent route: the complete 18-character weighted sum must be 1 modulo 11.
\nfunction oracle(body) {
\n for (const last of '0123456789X') {
\n const text = body + last;
\n let sum = 0n;
\n for (let i = 0; i < 18; i++) {
\n const value = text[i] === 'X' ? 10n : BigInt(text[i]);
\n sum += value * (2n ** BigInt(17 – i) % 11n);
\n }
\n if (sum % 11n === 1n) return last;
\n }
\n throw new Error('No check character');
\n}
\n\/\/ 000000 is only a synthetic test prefix, not a claim of a valid address code.
\nfunction sample(date, sequence = '001') {
\n const body = '000000' + date + sequence;
\n return body + oracle(body);
\n}<\/p>\n
test('synthetic baseline has the hand-calculated check character', () => {
\n const code = sample('20000229');
\n assert.equal(code, '000000200002290010');
\n assert.deepEqual(inspect18(code), { shape: true, date: true, checksum: true,
\n offlineChecksPassed: true, identityVerified: false, reason: 'offline_only' });
\n});
\ntest('shape lengths are 17, 18 and 19', () => {
\n const code = sample('20000229');
\n assert.equal(inspect18(code.slice(0, 17)).reason, 'shape');
\n assert.equal(inspect18(code).shape, true);
\n assert.equal(inspect18(code + '0').reason, 'shape');
\n});
\ntest('number values are not silently converted into identifier strings', () => {
\n assert.equal(inspect18(Number(sample('20000229'))).reason, 'type');
\n});
\ntest('spaces, newline and fullwidth digits are not accepted', () => {
\n const code = sample('20000229');
\n for (const s of [' ' + code, code + ' ', code + '\\\\n', '０' + code.slice(1)]) {
\n assert.equal(inspect18(s).reason, 'shape');
\n }
\n});
\ntest('an impossible date can still have a matching checksum', () => {
\n const r = inspect18(sample('20010229'));
\n assert.deepEqual([r.shape, r.date, r.checksum, r.reason], [true, false, true, 'date']);
\n});
\ntest('calendar boundaries include leap centuries and month ends', () => {
\n for (const [date, valid] of [['19000229', false], ['20000229', true],
\n ['20000430', true], ['20000431', false], ['20000001', false],
\n ['20001301', false], ['20000100', false], ['00000101', false]]) {
\n assert.equal(inspect18(sample(date)).date, valid, date);
\n }
\n});
\ntest('wrong checksum is isolated from a valid date and shape', () => {
\n const r = inspect18(sample('20000229').slice(0, 17) + '1');
\n assert.deepEqual([r.shape, r.date, r.checksum, r.reason], [true, true, false, 'checksum']);
\n});
\ntest('this input policy accepts lowercase x only in the last position', () => {
\n const x = Array.from({length: 100}, (_, i) => sample('20000229', String(i).padStart(3, '0'))).find(s => s.endsWith('X'));
\n assert.ok(x);assert.equal(inspect18(x.slice(0, 17) + 'x').offlineChecksPassed, true);
\n assert.equal(inspect18('x' + x.slice(1)).reason, 'shape');
\n});
\ntest('offline checks do not certify an address, age or actual identity', () => {
\n const r = inspect18(sample('20991231'));
\n assert.equal(r.offlineChecksPassed, true);
\n assert.equal(r.identityVerified, false);
\n});
\ntest('all positions and every remainder agree with an independent formula', () => {
\n const remainders = new Set();
\n for (let i = 0; i < 17; i++) for (let digit = 0; digit < 10; digit++) {
\n const body = '0'.repeat(i) + digit + '0'.repeat(16 – i);
\n assert.equal(checkCharacter(body), oracle(body), `position ${i}, digit ${digit}`);
\n remainders.add(Number(BigInt(digit) * (2n ** BigInt(17 – i) % 11n) % 11n));
\n }
\n assert.equal(remainders.size, 11);
\n});<\/p>\n
\u8fd0\u884c：<\/p>\n
node –test id-layers.test.mjs<\/p>\n
\u6d4b\u8bd5\u751f\u6210\u6821\u9a8c\u5b57\u7b26\u65f6，\u6ca1\u6709\u8c03\u7528\u88ab\u6d4b\u7684 checkCharacter\u3002\u5b83\u8d70\u53e6\u4e00\u6761\u8ba1\u7b97\u8def\u5f84：\u4ece\u6574\u4e3218\u4e2a\u5b57\u7b26\u7684\u52a0\u6743\u548c\u6a2111\u7b49\u4e8e1\u51fa\u53d1，\u627e\u6ee1\u8db3\u6761\u4ef6\u7684\u672b\u4f4d；\u6743\u91cd\u6309\u5e42\u516c\u5f0f\u8ba1\u7b97，\u4e0d\u590d\u5236\u5b9e\u73b0\u91cc\u7684\u6743\u91cd\u6570\u7ec4\u548c\u6620\u5c04\u5b57\u7b26\u4e32\u3002\u8fd9\u6837\u80fd\u964d\u4f4e\u201c\u751f\u6210\u5668\u548c\u68c0\u67e5\u5668\u5199\u7740\u540c\u4e00\u4e2a\u9519\u8bef，\u4e92\u76f8\u8bc1\u660e\u6b63\u786e\u201d\u7684\u98ce\u9669\u3002<\/p>\n
\u4e3b\u6848\u4f8b\u524d\u516d\u4f4d\u5168\u662f0，\u4f1a\u8ba9\u8fd9\u4e9b\u4f4d\u7f6e\u7684\u6743\u91cd\u9519\u8bef\u4e0d\u5bb9\u6613\u9732\u51fa\u6765\u3002\u56e0\u6b64\u8fd8\u8865\u4e86\u9010\u4f4d\u7f6e\u7684\u5355\u6570\u5b57\u53d8\u5316，\u8986\u76d6\u5168\u90e8\u4f4d\u7f6e\u548c11\u79cd\u4f59\u6570\u3002\u8fd9\u4e9b\u53ea\u662f\u6821\u9a8c\u51fd\u6570\u7684\u6570\u5b66\u8f93\u5165，\u5e76\u4e0d\u662f\u5408\u6cd5\u8eab\u4efd\u53f7\u7801\u6837\u672c\u3002<\/p>\n
\u6700\u540e\u53c8\u6545\u610f\u6539\u9519\u51e0\u4efd\u7a0b\u5e8f：\u53bb\u6389\u65e5\u671f\u68c0\u67e5\u3001\u628a1900\u5e74\u5f53\u95f0\u5e74\u3001\u5199\u9519\u4f59\u6570\u6620\u5c04\u3001\u6539\u574f\u4e00\u4e2a\u6743\u91cd，\u5206\u522b\u786e\u8ba4\u539f\u6709\u7528\u4f8b\u4f1a\u5931\u8d25\u3002\u8fd9\u91cc\u53ea\u8bf4\u660e\u8fd9\u4e9b\u5177\u4f53\u9519\u8bef\u80fd\u88ab\u53d1\u73b0，\u4e0d\u4ee3\u8868\u5b8c\u6574\u8eab\u4efd\u7f16\u7801\u89c4\u5219\u5df2\u7ecf\u6d4b\u5b8c\u3002<\/p>\n
\u53c2\u8003：\u6807\u51c6\u4fe1\u606f\u9875\u3001\u5b98\u65b9\u516c\u5f00\u6807\u51c6\u6587\u672c\u3002\u672c\u6587\u53ea\u5b9e\u73b0\u5176\u4e2d\u4e00\u90e8\u5206\u53ef\u79bb\u7ebf\u68c0\u67e5\u7684\u6761\u4ef6，\u4e0d\u58f0\u79f0\u5b8c\u6210\u6574\u4efd\u6807\u51c6\u6216\u771f\u5b9e\u8eab\u4efd\u6838\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8eab\u4efd\u8bc1\u53f7\u600e\u4e48\u6d4b？18\u4f4d\u3001\u65e5\u671f\u548c\u6821\u9a8c\u7801，\u4e0d\u80fd\u6df7\u6210\u4e00\u4e2a\u201c\u5408\u6cd5\u201d
\n\u65e7\u9898\u5355\u91cc\u6709\u4e2a\u95ee\u9898：\u201c\u4f7f\u7528\u7b49\u4ef7\u7c7b\u4e0e\u8fb9\u754c\u503c\u7684\u65b9\u6cd5，\u5bf9\u8eab\u4efd\u8bc1\u53f7\u5199\u6d4b\u8bd5\u7528\u4f8b\u3002\u201d
\n\u7b2c\u4e00\u6b65\u5f88\u5bb9\u6613\u60f3\u5230\u957f\u5ea6：17\u4f4d\u300118\u4f4d\u300119\u4f4d\u3002\u518d\u8865\u7a7a\u5b57\u7b26\u4e32\u3001\u5b57\u6bcd\u3001\u7279\u6b8a\u5b57\u7b26，\u4f3c\u4e4e\u5df2\u7ecf\u5217\u51fa\u4e0d\u5c11\u7528\u4f8b\u4e86\u3002
\n\u4f46\u5148\u95ee\u4e00\u53e5：\u62ff\u523018\u4e2a\u7b26\u5408\u8981\u6c42\u7684\u5b57\u7b26\u4ee5\u540e，\u6211\u4eec\u5230\u5e95\u9a8c\u8bc1\u4e86\u4ec0\u4e48？
\n\u672c\u6587\u53ea\u8ba8\u8bba18\u4f4d\u516c\u6c11\u8eab\u4efd\u53f7\u7801\u7684\u51e0\u4e2a\u79bb\u7ebf\u68c0\u67e5\u5c42\u6b21&<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[187,138,461],"topic":[],"class_list":["post-119858","post","type-post","status-publish","format-standard","hentry","category-server","tag-javascript","tag-138","tag-461"],"yoast_head":"\n