{"id":133,"date":"2010-09-10T09:57:34","date_gmt":"2010-09-10T09:57:34","guid":{"rendered":"9fc3d7152ba9336a670e36d0ed79bc43"},"modified":"2010-09-10T09:57:34","modified_gmt":"2010-09-10T09:57:34","slug":"","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/133","title":{"rendered":"\u7528HASH\u8868\u8fdb\u884c\u6d77\u91cf\u6570\u636e\u641c\u7d22"},"content":{"rendered":"<p>\u63d0\u4e00\u4e2a\u7b80\u5355\u7684\u95ee\u9898\uff0c\u5982\u679c\u6709\u4e00\u4e2a\u5e9e\u5927\u7684\u5b57\u7b26\u4e32\u6570\u7ec4\uff0c\u7136\u540e\u7ed9\u4f60\u4e00\u4e2a\u5355\u72ec\u7684\u5b57\u7b26\u4e32\uff0c\u8ba9\u4f60\u4ece\u8fd9\u4e2a\u6570\u7ec4\u4e2d\u67e5\u627e\u662f\u5426\u6709\u8fd9\u4e2a\u5b57\u7b26\u4e32\u5e76\u627e\u5230\u5b83\uff0c\u4f60\u4f1a\u600e\u4e48\u505a\uff1f\u6709\u4e00\u4e2a\u65b9\u6cd5\u6700\u7b80\u5355\uff0c\u8001\u8001\u5b9e\u5b9e\u4ece\u5934\u67e5\u5230\u5c3e\uff0c\u4e00\u4e2a\u4e00\u4e2a\u6bd4\u8f83\uff0c\u76f4\u5230\u627e\u5230\u4e3a\u6b62\uff0c\u6211\u60f3\u53ea\u8981\u5b66\u8fc7\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u4eba\u90fd\u80fd\u628a\u8fd9\u6837\u4e00\u4e2a\u7a0b\u5e8f\u4f5c\u51fa\u6765\uff0c\u4f46\u8981\u662f\u6709\u7a0b\u5e8f\u5458\u628a\u8fd9\u6837\u7684\u7a0b\u5e8f\u4ea4\u7ed9\u7528\u6237\uff0c\u6211\u53ea<br \/>\u80fd\u7528\u65e0\u8bed\u6765\u8bc4\u4ef7\uff0c\u6216\u8bb8\u5b83\u771f\u7684\u80fd\u5de5\u4f5c\uff0c\u4f46...\u4e5f\u53ea\u80fd\u5982\u6b64\u4e86\u3002\u6700\u5408\u9002\u7684\u7b97\u6cd5\u81ea\u7136\u662f\u4f7f\u7528HashTable\uff08\u54c8\u5e0c\u8868\uff09\uff0c\u5148\u4ecb\u7ecd\u4ecb\u7ecd\u5176\u4e2d\u7684\u57fa\u672c\u77e5\u8bc6\uff0c\u6240\u8c13Hash\uff0c\u4e00\u822c\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u901a\u8fc7\u67d0\u79cd\u7b97\u6cd5\uff0c\u53ef\u4ee5\u628a\u4e00\u4e2a\u5b57\u7b26\u4e32&quot;\u538b\u7f29&quot; \u6210\u4e00\u4e2a\u6574\u6570\uff0c\u8fd9\u4e2a\u6570\u79f0\u4e3aHash\uff0c\u5f53\u7136\uff0c\u65e0\u8bba\u5982\u4f55\uff0c\u4e00\u4e2a32\u4f4d\u6574\u6570\u662f\u65e0\u6cd5\u5bf9\u5e94\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\uff0c\u4f46\u5728\u7a0b\u5e8f\u4e2d\uff0c\u4e24\u4e2a\u5b57\u7b26<br \/>\u4e32\u8ba1\u7b97\u51fa\u7684Hash\u503c\u76f8\u7b49\u7684\u53ef\u80fd\u975e\u5e38 \u5c0f\uff0c\u4e0b\u9762\u770b\u770b\u5728MPQ\u4e2d\u7684Hash\u7b97\u6cd5<br \/>unsigned long HashString(char *lpszFileName, unsigned long dwHashType)<br \/>{ <br \/>unsigned char *key = (unsigned char *)lpszFileName;<br \/>unsigned long seed1 = 0x7FED7FED, seed2 = 0xEEEEEEEE;<br \/>int ch;<br \/>while(*key != 0)<br \/>{ <br \/>ch = toupper(*key++);<br \/>seed1 = cryptTable[(dwHashType &lt;&lt; 8) + ch] ^ (seed1 + seed2);<br \/>seed2 = ch + seed1 + seed2 + (seed2 &lt;&lt; 5) + 3; <br \/>}<br \/>return seed1; <br \/>} <br \/>Blizzard\u7684\u8fd9\u4e2a\u7b97\u6cd5\u662f\u975e\u5e38\u9ad8\u6548\u7684\uff0c\u88ab\u79f0\u4e3a&quot;One-Way Hash&quot;\uff0c\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5b57\u7b26\u4e32&quot;unitneutralacritter.grp&quot;\u901a\u8fc7\u8fd9\u4e2a\u7b97\u6cd5\u5f97\u5230\u7684\u7ed3\u679c\u662f0xA26067F3\u3002<br \/>\u662f \u4e0d\u662f\u628a\u7b2c\u4e00\u4e2a\u7b97\u6cd5\u6539\u8fdb\u4e00\u4e0b\uff0c\u6539\u6210\u9010\u4e2a\u6bd4\u8f83\u5b57\u7b26\u4e32\u7684Hash\u503c\u5c31\u53ef\u4ee5\u4e86\u5462\uff0c\u7b54\u6848\u662f\uff0c\u8fdc\u8fdc\u4e0d\u591f\uff0c\u8981\u60f3\u5f97\u5230\u6700\u5feb\u7684\u7b97\u6cd5\uff0c\u5c31\u4e0d\u80fd\u8fdb\u884c\u9010\u4e2a\u7684\u6bd4\u8f83\uff0c\u901a\u5e38\u662f\u6784\u9020\u4e00\u4e2a\u54c8 \u5e0c\u8868(Hash Table)\u6765\u89e3\u51b3\u95ee\u9898\uff0c\u54c8\u5e0c\u8868\u662f\u4e00\u4e2a\u5927\u6570\u7ec4\uff0c\u8fd9\u4e2a\u6570\u7ec4\u7684\u5bb9\u91cf\u6839\u636e\u7a0b\u5e8f\u7684\u8981\u6c42\u6765\u5b9a\u4e49\uff0c\u4f8b\u59821024\uff0c\u6bcf\u4e00\u4e2aHash\u503c\u901a\u8fc7\u53d6\u6a21\u8fd0\u7b97 (mod)\u5bf9\u5e94\u5230\u6570\u7ec4\u4e2d\u7684\u4e00\u4e2a\u4f4d\u7f6e\uff0c\u8fd9\u6837\uff0c\u53ea\u8981\u6bd4\u8f83\u8fd9\u4e2a\u5b57\u7b26\u4e32\u7684\u54c8\u5e0c\u503c\u5bf9\u5e94\u7684\u4f4d\u7f6e\u53c8\u6ca1\u6709\u88ab\u5360\u7528\uff0c\u5c31\u53ef\u4ee5\u5f97\u5230\u6700\u540e\u7684\u7ed3\u679c\u4e86\uff0c\u60f3\u60f3\u8fd9\u662f\u4ec0\u4e48\u901f\u5ea6\uff1f\u662f\u7684\uff0c\u662f\u6700\u5feb \u7684O(1)\uff0c\u73b0\u5728\u4ed4\u7ec6\u770b\u770b\u8fd9\u4e2a\u7b97\u6cd5\u5427<br \/>int GetHashTablePos(char *lpszString, SOMESTRUCTURE *lpTable, int nTableSize)<\/p>\n<p>{ <br \/>int nHash = HashString(lpszString), nHashPos = nHash % nTableSize;<br \/>if (lpTable[nHashPos].bExists &amp;&amp; !strcmp(lpTable[nHashPos].pString, lpszString<br \/>)) <br \/>return nHashPos; <br \/>else <br \/>return -1; \/\/Error value <br \/>} <br \/>\u770b \u5230\u6b64\uff0c\u6211\u60f3\u5927\u5bb6\u90fd\u5728\u60f3\u4e00\u4e2a\u5f88\u4e25\u91cd\u7684\u95ee\u9898\uff1a&quot;\u5982\u679c\u4e24\u4e2a\u5b57\u7b26\u4e32\u5728\u54c8\u5e0c\u8868\u4e2d\u5bf9\u5e94\u7684\u4f4d\u7f6e\u76f8\u540c\u600e\u4e48\u529e\uff1f&quot;,\u6bd5\u7adf\u4e00\u4e2a\u6570\u7ec4\u5bb9\u91cf\u662f\u6709\u9650\u7684\uff0c\u8fd9\u79cd\u53ef\u80fd\u6027\u5f88\u5927\u3002\u89e3\u51b3\u8be5\u95ee\u9898\u7684 \u65b9\u6cd5\u5f88\u591a\uff0c\u6211\u9996\u5148\u60f3\u5230\u7684\u5c31\u662f\u7528&quot;\u94fe\u8868&quot;,\u5927\u5b66\u91cc\u5b66\u7684\u6570\u636e\u7ed3\u6784\u6559\u4f1a\u4e86\u8fd9\u4e2a\u767e\u8bd5\u767e\u7075\u7684\u6cd5\u5b9d\uff0c\u6211\u9047\u5230\u7684\u5f88\u591a\u7b97\u6cd5\u90fd\u53ef\u4ee5\u8f6c\u5316\u6210\u94fe\u8868\u6765\u89e3\u51b3\uff0c\u53ea\u8981\u5728\u54c8\u5e0c\u8868\u7684\u6bcf\u4e2a \u5165\u53e3\u6302\u4e00\u4e2a\u94fe\u8868\uff0c\u4fdd\u5b58\u6240\u6709\u5bf9\u5e94\u7684\u5b57\u7b26\u4e32\u5c31OK\u4e86\u3002\u4e8b\u60c5\u5230\u6b64\u4f3c\u4e4e\u6709\u4e86\u5b8c\u7f8e\u7684\u7ed3\u5c40\uff0c\u5982\u679c\u662f\u628a\u95ee\u9898\u72ec\u81ea\u4ea4\u7ed9\u6211\u89e3\u51b3\uff0c\u6b64\u65f6\u6211\u53ef\u80fd\u5c31\u8981\u5f00\u59cb\u5b9a\u4e49\u6570\u636e\u7ed3\u6784\u7136\u540e\u5199\u4ee3\u7801\u4e86\u3002\u7136\u800cBlizzard\u7684\u7a0b\u5e8f\u5458\u4f7f\u7528\u7684\u65b9\u6cd5\u5219\u662f\u66f4\u7cbe\u5999\u7684\u65b9\u6cd5\u3002\u57fa\u672c\u539f\u7406\u5c31\u662f\uff1a\u4ed6\u4eec\u5728\u54c8\u5e0c\u8868\u4e2d\u4e0d\u662f\u7528\u4e00\u4e2a\u54c8\u5e0c\u503c\u800c\u662f\u7528\u4e09\u4e2a\u54c8\u5e0c\u503c\u6765\u6821\u9a8c\u5b57\u7b26\u4e32\u3002\u4e2d \u56fd\u6709\u53e5\u53e4\u8bdd&quot;\u518d\u4e00\u518d\u4e8c\u4e0d\u80fd\u518d\u4e09\u518d\u56db&quot;\uff0c\u770b\u6765Blizzard\u4e5f\u6df1\u5f97\u6b64\u8bdd\u7684\u7cbe\u9ad3\uff0c\u5982\u679c\u8bf4\u4e24\u4e2a\u4e0d\u540c\u7684\u5b57\u7b26\u4e32\u7ecf\u8fc7\u4e00\u4e2a\u54c8\u5e0c\u7b97\u6cd5\u5f97\u5230\u7684\u5165\u53e3\u70b9\u4e00\u81f4\u6709\u53ef\u80fd\uff0c\u4f46\u7528\u4e09\u4e2a \u4e0d\u540c\u7684\u54c8\u5e0c\u7b97\u6cd5\u7b97\u51fa\u7684\u5165\u53e3\u70b9\u90fd\u4e00\u81f4\uff0c\u90a3\u51e0\u4e4e\u53ef\u4ee5\u80af\u5b9a\u662f\u4e0d\u53ef\u80fd\u7684\u4e8b\u4e86\uff0c\u8fd9\u4e2a\u51e0\u7387\u662f:1888946593147858085478<br \/>4\uff0c\u5927\u6982\u662f10\u7684 22.3\u6b21\u65b9\u5206\u4e4b\u4e00\uff0c\u5bf9\u4e00\u4e2a\u6e38\u620f\u7a0b\u5e8f\u6765\u8bf4\u8db3\u591f\u5b89\u5168\u4e86\u3002\u73b0\u5728\u518d\u56de\u5230\u6570\u636e\u7ed3\u6784\u4e0a\uff0cBlizzard\u4f7f\u7528\u7684\u54c8\u5e0c\u8868\u6ca1\u6709\u4f7f\u7528\u94fe\u8868\uff0c\u800c\u91c7\u7528&quot;\u987a\u5ef6&quot;\u7684\u65b9\u5f0f\u6765\u89e3\u51b3\u95ee\u9898\uff0c\u770b\u770b\u8fd9\u4e2a\u7b97\u6cd5\uff1a<br \/>int GetHashTablePos(char *lpszString, MPQHASHTABLE *lpTable, int nTableSize)<\/p>\n<p>{ <br \/>const int HASH_OFFSET = 0, HASH_A = 1, HASH_B = 2;<br \/>int nHash = HashString(lpszString, HASH_OFFSET);<br \/>int nHashA = HashString(lpszString, HASH_A);<br \/>int nHashB = HashString(lpszString, HASH_B);<br \/>int nHashStart = nHash % nTableSize, nHashPos = nHashStart;<br \/>while (lpTable[nHashPos].bExists)<br \/>{ <br \/>if (lpTable[nHashPos].nHashA == nHashA &amp;&amp; lpTable[nHashPos].nHashB == nHashB<br \/>) <br \/>return nHashPos; <br \/>else <br \/>nHashPos = (nHashPos + 1) % nTableSize;<\/p>\n<p>if (nHashPos == nHashStart) <br \/>break; <br \/>}<br \/>return -1; \/\/Error value <br \/>} <br \/>1. \u8ba1\u7b97\u51fa\u5b57\u7b26\u4e32\u7684\u4e09\u4e2a\u54c8\u5e0c\u503c\uff08\u4e00\u4e2a\u7528\u6765\u786e\u5b9a\u4f4d\u7f6e\uff0c\u53e6\u5916\u4e24\u4e2a\u7528\u6765\u6821\u9a8c)<br \/>2. \u5bdf\u770b\u54c8\u5e0c\u8868\u4e2d\u7684\u8fd9\u4e2a\u4f4d\u7f6e<br \/>3. \u54c8\u5e0c\u8868\u4e2d\u8fd9\u4e2a\u4f4d\u7f6e\u4e3a\u7a7a\u5417\uff1f\u5982\u679c\u4e3a\u7a7a\uff0c\u5219\u80af\u5b9a\u8be5\u5b57\u7b26\u4e32\u4e0d\u5b58\u5728\uff0c\u8fd4\u56de<br \/>4. \u5982\u679c\u5b58\u5728\uff0c\u5219\u68c0\u67e5\u5176\u4ed6\u4e24\u4e2a\u54c8\u5e0c\u503c\u662f\u5426\u4e5f\u5339\u914d\uff0c\u5982\u679c\u5339\u914d\uff0c\u5219\u8868\u793a\u627e\u5230\u4e86\u8be5\u5b57\u7b26\u4e32\uff0c\u8fd4<br \/>\u56de<br \/>5. \u79fb\u5230\u4e0b\u4e00\u4e2a\u4f4d\u7f6e\uff0c\u5982\u679c\u5df2\u7ecf\u8d8a\u754c\uff0c\u5219\u8868\u793a\u6ca1\u6709\u627e\u5230\uff0c\u8fd4\u56de<br \/>6. \u770b\u770b\u662f\u4e0d\u662f\u53c8\u56de\u5230\u4e86\u539f\u6765\u7684\u4f4d\u7f6e\uff0c\u5982\u679c\u662f\uff0c\u5219\u8fd4\u56de\u6ca1\u627e\u5230<br \/>7. \u56de\u52303<br \/>\u600e\u4e48\u6837\uff0c\u5f88\u7b80\u5355\u7684\u7b97\u6cd5\u5427\uff0c\u4f46\u786e\u5b9e\u662f\u5929\u624d\u7684idea, \u5176\u5b9e\u6700\u4f18\u79c0\u7684\u7b97\u6cd5\u5f80\u5f80\u662f\u7b80\u5355\u6709\u6548\u7684\u7b97\u6cd5.<\/p>\n<p>\u4f86\u81ea\uff1aNgacn.com&nbsp;&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<table border=\"0\" cellpadding=\"4\" cellspacing=\"1\" class=\"FCK__ShowTableBorders\" style=\"table-layout: fixed; word-wrap: break-word\" width=\"100%\">\n<tbody>\n<tr>\n<td valign=\"top\"><strong>Re:Blizzard\u7684MPQ\u6587\u4ef6\u683c\u5f0f\u641c\u7d22\u7b97\u6cd5<\/strong><\/p>\n<p>\u6655\u6b7b\uff0c\u5176\u5b9e\u8fd9\u7bc7\u6587\u7ae0\u6700\u65e9\u8fd8\u662f\u6211\u5728bokee.com\u4e0a\u5199\u7684\uff0c\u8f6c\u6765\u8f6c\u53bb\u54ea\u513f\u90fd\u6709\u4e86 \ud83d\ude42<\/p>\n<p>\u4e0d\u8fc7\u8fd9\u7bc7\u6587\u7ae0\u73b0\u5728\u770b\u8d77\u6765\u5df2\u7ecf\u5f88\u571f\u4e86\uff0c\u800c\u4e14\u8fd8\u6709\u4e00\u4e9b\u89c2\u70b9\u662f\u4e0d\u59a5\u7684\uff0c\u6b63\u597d\u7ea0\u6b63\u4e00\u4e0b<\/p>\n<p>1\u3002\u89e3\u51b3hash\u8868\u78b0\u649e\u6709\u5f88\u591a\u65b9\u6cd5\uff0c\u6700\u5f00\u59cb\u63d0\u5230\u7684\u94fe\u8868(chaining)\u662f\u5176\u4e2d\u4e00\u79cd\uff0c\u8fd9\u79cd\u65b9\u6cd5\u5e76\u4e0d\u662f\u6211\u539f\u5148\u8ba4\u4e3a\u7684&ldquo;\u7cdf\u7cd5&rdquo;\u7684\u65b9\u6cd5\uff0c\u76f8\u53cd\uff0c\u8fd9\u79cd\u65b9\u6cd5\u662f\u6700\u666e\u904d\u7684\uff0cC++\u6807\u51c6\u5e93\u4e2d\u7684hash\u8868\u7528\u7684\u6b63\u662f\u8fd9\u79cd\u65b9\u6cd5\u3002<\/p>\n<p>2. \u66b4\u96ea\u6ca1\u6709\u4f7f\u7528\u94fe\u8868\uff0c\u800c\u662f\u4f7f\u7528\u7ebf\u6027\u6316\u6398\u65b9\u5f0f(Linear probing)\uff0c\u8fd9\u662f\u7531\u4e8e\u8fd9\u79cd\u4e0d\u9700\u8981\u52a8\u6001\u5206\u914d\u5185\u5b58\uff0c\u800c\u4e14\u66f4\u65b9\u4fbf\u5c06\u6570\u636e\u5e8f\u5217\u5316\u5230\u78c1\u76d8\u6587\u4ef6\u4e0a\u3002<\/p>\n<p>2. \u66f4\u597d\u7684\u65b9\u6cd5\u662f&quot;\u5e42\u6b21\u6316\u6398&quot;\u65b9\u6cd5(quadratic probing),\u53d1\u751f\u78b0\u649e\u65f6\uff0c\u6309\u7167&quot;+1,-1,+4,-4,+9,-9,...,+n^2,-n^2&quot;\u65b9\u5f0f\u79fb\u52a8,\u8fd9\u79cd\u65b9\u5f0f\u4e0b\u8fd8\u9700\u8981\u8981\u6c42\u5bb9\u5668\u7684\u957f\u5ea6\u662f\u8d28\u6570\uff0c\u53ef\u4ee5\u8fbe\u5230\u66f4\u5feb\u7684\u901f\u5ea6<\/p>\n<p>3. \u8fd9\u4e9b\u65b9\u6cd5\u90fd\u4e0d\u662f\u4ec0\u4e48\u79d8\u5bc6\uff0c\u7a0d\u5fae\u8be6\u7ec6\u4e00\u4e9b\u7684\u6570\u636e\u7ed3\u6784\u8bfe\u7a0b\u91cc\u90fd\u6709\uff0c\u6240\u4ee5\u6709\u4e00\u70b9\u53ef\u4ee5\u80af\u5b9a\uff0c\u4e0a\u8bfe\u8ba4\u771f\u542c\u8bb2\u662f\u6ca1\u6709\u574f\u5904\u7684<\/p>\n<p>4. \u6700\u540e\u662f\u4e00\u4e2a\u597d\u6d88\u606f\uff0c2008 C++\u6807\u51c6\u91cc\u5df2\u7ecf\u6709hash\u8868\u4e86\uff0c\u53ea\u4e0d\u8fc7\u6362\u4e86\u4e00\u4e2a\u5b98\u65b9\u540d\u79f0&quot;unordered&quot;\uff0c\u6709\u70b9\u602a\u54c8<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>\u63d0\u4e00\u4e2a\u7b80\u5355\u7684\u95ee\u9898\uff0c\u5982\u679c\u6709\u4e00\u4e2a\u5e9e\u5927\u7684\u5b57\u7b26\u4e32\u6570\u7ec4\uff0c\u7136\u540e\u7ed9\u4f60\u4e00\u4e2a\u5355\u72ec\u7684\u5b57\u7b26\u4e32\uff0c\u8ba9\u4f60\u4ece\u8fd9\u4e2a\u6570\u7ec4\u4e2d\u67e5\u627e\u662f\u5426\u6709\u8fd9\u4e2a\u5b57\u7b26\u4e32\u5e76\u627e\u5230\u5b83\uff0c\u4f60\u4f1a\u600e\u4e48\u505a\uff1f\u6709\u4e00\u4e2a\u65b9\u6cd5\u6700\u7b80\u5355\uff0c\u8001\u8001\u5b9e\u5b9e\u4ece\u5934\u67e5\u5230\u5c3e\uff0c\u4e00\u4e2a\u4e00\u4e2a\u6bd4\u8f83\uff0c\u76f4\u5230\u627e\u5230\u4e3a\u6b62\uff0c\u6211\u60f3\u53ea\u8981\u5b66\u8fc7\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u4eba\u90fd\u80fd\u628a\u8fd9\u6837\u4e00\u4e2a\u7a0b\u5e8f\u4f5c\u51fa\u6765\uff0c\u4f46\u8981\u662f\u6709\u7a0b\u5e8f\u5458\u628a\u8fd9\u6837\u7684\u7a0b\u5e8f\u4ea4\u7ed9\u7528\u6237\uff0c\u6211\u53ea<br \/>\u80fd\u7528\u65e0\u8bed\u6765\u8bc4\u4ef7\uff0c\u6216\u8bb8\u5b83\u771f\u7684\u80fd\u5de5\u4f5c\uff0c\u4f46...\u4e5f\u53ea\u80fd\u5982\u6b64\u4e86\u3002\u6700\u5408\u9002\u7684\u7b97\u6cd5\u81ea\u7136\u662f\u4f7f\u7528HashTable\uff08\u54c8\u5e0c\u8868\uff09\uff0c\u5148\u4ecb\u7ecd\u4ecb\u7ecd\u5176\u4e2d\u7684\u57fa\u672c\u77e5\u8bc6\uff0c\u6240\u8c13Hash\uff0c\u4e00\u822c\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u901a\u8fc7\u67d0\u79cd\u7b97\u6cd5\uff0c\u53ef\u4ee5\u628a\u4e00\u4e2a\u5b57\u7b26\u4e32&quot;\u538b\u7f29&quot; \u6210\u4e00\u4e2a\u6574\u6570\uff0c\u8fd9\u4e2a\u6570\u79f0\u4e3aHash\uff0c\u5f53\u7136\uff0c\u65e0\u8bba\u5982\u4f55\uff0c\u4e00\u4e2a32\u4f4d\u6574\u6570\u662f\u65e0\u6cd5\u5bf9\u5e94\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\uff0c\u4f46\u5728\u7a0b\u5e8f\u4e2d\uff0c\u4e24\u4e2a\u5b57\u7b26<br \/>\u4e32\u8ba1\u7b97\u51fa\u7684Hash\u503c\u76f8\u7b49\u7684\u53ef\u80fd\u975e\u5e38 \u5c0f\uff0c\u4e0b\u9762\u770b\u770b\u5728MPQ\u4e2d\u7684Hash\u7b97\u6cd5<br \/>unsigned long HashString(char *lpszFileName, unsigned long dwHashType)<br \/>{ <br \/>unsigned char *key = (unsigned char *)lpszFileName;<br \/>unsigned long seed1 = 0x7FED7FED...<\/p>\n<p> <a href=\"https:\/\/www.xiaobo.li\/notes\/archives\/133\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/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":[273],"tags":[51],"class_list":["post-133","post","type-post","status-publish","format-standard","hentry","category-article","tag-DB"],"_links":{"self":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/133","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/comments?post=133"}],"version-history":[{"count":0,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/133\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/media?parent=133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/categories?post=133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/tags?post=133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}