{"id":451,"date":"2015-03-28T18:18:41","date_gmt":"2015-03-28T10:18:41","guid":{"rendered":"http:\/\/blog.mega-zone.org\/?p=451"},"modified":"2015-03-28T20:57:27","modified_gmt":"2015-03-28T12:57:27","slug":"calling-convention","status":"publish","type":"post","link":"https:\/\/blog.mega-zone.org\/?p=451","title":{"rendered":"Calling Convention"},"content":{"rendered":"

\u4e4b\u524d\u5e76\u6ca1\u6709\u5f88\u5728\u4e4e\u8fd9\u65b9\u9762\u7684\u4e8b\u60c5\uff0c\u76f4\u5230\u6700\u8fd1\u9700\u8981\u5728\u67d0\u4e2abcb\u7f16\u8bd1\u7684\u7a0b\u5e8f\u4e2d\u96c6\u6210steam sdk\u3002<\/p>\n

\u6545\u4e8b\u662f\u8fd9\u6837\u7684\uff0csteam sdk\u63d0\u4f9b\u7684\u63a5\u53e3\u662fc++\u4ee3\u7801\uff0c\u5b98\u65b9\u53f7\u79f0\u652f\u6301visual studio\u548cgcc\u4e24\u79cd\u7f16\u8bd1\u5668\u3002\u4f46\u6211\u4e0d\u60f3\u5148\u505a\u4e00\u5c42\u5305\u88c5\u8f6c\u6362\u6210c\u7684\u63a5\u53e3\u518d\u4f7f\u7528\uff0c\u6240\u4ee5\u6253\u7b97\u5f3a\u884c\u5728bcb\u4e2d\u94fe\u63a5\u8fd9\u4e9blib\u3002<\/p>\n

\u73b0\u5728\u95ee\u9898\u6765\u4e86\uff0c\u7531\u4e8ec++\u7684abi\u5f88\u6df7\u4e71\uff0c\u5fae\u8f6f\u53c8\u559c\u6b22\u73a9\u82b1\u6d3b\uff0c\u4e00\u65e6\u63a5\u53e3\u662fc++\u7684\u683c\u5f0f(class, virtual table)\u5c31\u5f88\u5fae\u5999\u3002\u8fd9\u5c31\u7275\u626f\u5230\u4e86calling convention\u7684\u4e8b\u60c5\uff0c\u4e5f\u5c31\u662f\u51fd\u6570\u8c03\u7528\u7ea6\u5b9a\u3002\u8fd9\u4ef6\u4e8b\u60c5\u672c\u6765\u5f88\u7b80\u5355\uff0c\u5728c\u7684\u65f6\u4ee3\u53ea\u8981\u89e3\u51b3\u4e24\u4e2a\u95ee\u9898\u5c31\u597d\uff1a1\u3001\u53c2\u6570\u4e2a\u6570\u662f\u4e0d\u662f\u56fa\u5b9a\u7684\u30022\u3001\u53c2\u6570\u662f\u5982\u4f55\u88ab\u653e\u5230\u5806\u6808\u4e2d\u7684\u3002\u7b2c\u4e8c\u4e2a\u95ee\u9898\u65e0\u5173\u75db\u75d2\uff0c\u6240\u4ee5c\u89c4\u5b9a\u53c2\u6570\u4e00\u5f8b\u662f\u4ece\u53f3\u5230\u5de6\u538b\u5165\u6808\u4e2d\uff0c\u8fd9\u6837\u7528\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u5f39\u51fa\u3002<\/p>\n

\u6240\u4ee5calling convention\u53ea\u548c\u7b2c\u4e00\u4e2a\u95ee\u9898\u6709\u5173\uff0c\u8fd9\u6837\u5c31\u8bde\u751f\u4e86\u4e24\u4e2a\u5173\u952e\u5b57\uff1a<\/p>\n

__cdecl<\/strong>\uff1a\u652f\u6301\u4e0d\u56fa\u5b9a\u4e2a\u6570\u7684\u53c2\u6570\uff0c\u8c03\u7528\u65b9caller\u8d1f\u8d23\u6e05\u7406\u5806\u6808\u3002\u597d\u5904\u662fprintf\u4e4b\u7c7b\u7684\u4e1c\u897f\u53ef\u4ee5\u5b9e\u73b0\uff0c\u574f\u5904\u662f\u51fd\u6570\u5185\u90e8\u4e0d\u80fd\u5bf9\u5806\u6808\u73a9\u82b1\u6d3b\uff0c\u56e0\u4e3a\u7ba1\u7406\u6743\u5728\u5916\u9762\u3002<\/p>\n

__stdcall<\/strong>\uff1a\u53c2\u6570\u4e2a\u6570\u56fa\u5b9a\uff0c\u88ab\u8c03\u7528\u65b9callee\u8d1f\u8d23\u6e05\u7406\u5806\u6808\u3002\u597d\u5904\u5c31\u662f\u51fd\u6570\u7ed3\u5c3e\u76f4\u63a5\u7528ret xx\u89e3\u51b3\u6240\u6709\u95ee\u9898\uff0c\u574f\u5904\u662f\u53c2\u6570\u4e2a\u6570\u56fa\u5b9a\uff0c\u56e0\u4e3a\u7f16\u8bd1\u671f\u5c31\u5f97\u51b3\u5b9aret\u4e4b\u540e\u7684\u5b57\u8282\u6570\u3002\u987a\u9053\u8bf4\uff0cCOM\u4e2d\u6240\u6709\u8c03\u7528\u90fd\u662f__stdcall\u3002<\/p>\n

\u76ee\u524d\u4e3a\u6b62\u4e00\u5207\u8fd8\u662f\u6709\u5e8f\u7684\uff0c\u76f4\u5230link\u7684\u65f6\u5019\uff0c\u51fa\u73b0\u4e86name mangling\u7684\u95ee\u9898\u3002M$\u548cBorland\u4f7f\u7528\u4e86\u622a\u7136\u76f8\u53cd\u7684\u65b9\u5f0f\u6765\u4fee\u9970\u51fd\u6570\u540d\uff0c\u5177\u4f53\u53ef\u4ee5\u53c2\u8003\u300aUsing Visual C++ DLLs with C++Builder<\/a>\u300b\u4e2d\u7684Table A\u3002\u8fd8\u597d\u53cc\u65b9\u90fd\u63d0\u4f9b\u4e86\u89e3\u51b3\u65b9\u6cd5\uff0c\u4efb\u9009\u4e00\u79cd\u5c31\u53ef\u4ee5\u751f\u6210\u5408\u9002\u7684\u7b26\u53f7\u540d\uff0c\u53ef\u4ee5\u6109\u5feb\u7684link\u3002<\/p>\n

\u5373\u4f7flink\u6ca1\u6709\u95ee\u9898\uff0c\u95ee\u9898\u4e5f\u8fd8\u8fdc\u672a\u89e3\u51b3\uff0c\u4e00\u65e6\u5f00\u59cb\u4f7f\u7528c++\u7684\u63a5\u53e3\uff0crun-time\u7684\u95ee\u9898\u5c31\u6d6e\u73b0\u51fa\u6765\u3002\u8fd9\u5c31\u8981\u63d0\u5230M$\u7684\u53d1\u660e\uff1a<\/p>\n

__thiscall<\/strong>\uff1a\u7528\u4e8enon-static member function\uff0c\u4f1a\u628athis\u653e\u5165ecx\uff0c\u518d\u8c03\u7528\u51fd\u6570\u3002\u597d\u5904\u5c31\u662fthis\u6307\u9488\u975e\u5e38\u5bb9\u6613\u627e\u5230\uff0c\u8c03\u8bd5\u65b9\u4fbf\u3002\u574f\u5904\u5c31\u662f\u2026\u2026\u8fd9\u662fM$\u7684\u53d1\u660e\uff0c\u800c\u975e\u6807\u51c6\u3002\u8fd8\u597d\u65f6\u81f3\u4eca\u65e5\u5f88\u591a\u7f16\u8bd1\u5668\u90fd\u652f\u6301\u4e86__thiscall\uff0c\u5de8\u786c\u4e0d\u518d\u5b64\u5bb6\u5be1\u4eba\u3002<\/p>\n

\u5b9e\u9645\u4e0abcb\u5bf9this\u7684\u89e3\u51b3\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u5c31\u662f\u628a\u5b83\u5f53\u4f5c\u7b2c\u4e00\u4e2a\u51fd\u6570\u7684\u53c2\u6570\uff0c\u7167\u6837\u4f20\u9012\u8fdb\u53bb\u5373\u53ef\u3002\u8c03\u8bd5\u65f6\u5019\u4e5f\u4e0d\u89c1\u5f97\u6709\u591a\u9ebb\u70e6\uff0c\u800c\u4e14\u5982\u4eca\u7f16\u8bd1\u5668\u5bf9\u4ee3\u7801\u7684\u4f18\u5316\u975e\u5e38\u98ce\u9a9a\uff0cecx\u5728\u5165\u53e3\u53ef\u80fd\u8fd8\u6709\u7528\uff0c\u8fdb\u5165\u51fd\u6570\u4f53\u4e4b\u540e\u51e0\u4e4e\u5c31\u5b8c\u5168\u65e0\u7528\u4e86\u3002<\/p>\n

__fastcall<\/strong>\uff1a\u65f6\u4ee3\u7684\u773c\u6cea\uff0c\u4ece\u540d\u5b57\u770b\u5f88\u62c9\u98ce\uff0c\u4f46\u5b9a\u4e49\u7279\u522b\u590d\u6742\u3002\u5177\u4f53\u5c31\u662f\u8bf4\u628a\u524d\u51e0\u4e2a\u8f83\u5c0f\u7684\u53c2\u6570\u4ece\u5bc4\u5b58\u5668\u91cc\u4f20\u5165\uff0c\u800c\u4e0d\u662f\u538b\u5165\u5806\u6808\u4e2d\u3002\u8fd9\u6837\u8c03\u7528\u53cc\u65b9\u7701\u53bb\u4e86\u5f88\u591a\u8fdb\u51fa\u6808\u7684\u64cd\u4f5c\uff0c\u6545\u540dfast\u3002\u65f6\u81f3\u4eca\u65e5\uff0c\u8fd9\u4e9b\u5f00\u9500\u4f3c\u4e4e\u6ca1\u4ec0\u4e48\u4eba\u5728\u4e4e\u4e86\u3002<\/p>\n

\u5176\u4ed6\u7684\u8c03\u7528\u7ea6\u5b9a\u6211\u6ca1\u600e\u4e48\u770b\u5c31\u4e0d\u8bf4\u4e86\uff0c\u624b\u5934\u7684\u60c5\u51b5\u53ea\u548c\u540e\u4e24\u79cd\u6709\u5173\u3002\u8fd9\u4e2abcb\u7684\u7a0b\u5e8f\u8bde\u751f\u4e8e\u8fd120\u5e74\u524d\uff0c\u4f5c\u8005\u5927\u6982\u89c9\u5f97\u51fd\u6570\u8c03\u7528\u5f00\u9500\u662f\u4e00\u4ef6\u5f88\u91cd\u8981\u7684\u4e8b\u60c5\uff0c\u6240\u4ee5\u9ed8\u8ba4\u5168\u90e8\u51fd\u6570\u90fd\u91c7\u7528__fastcall\u3002\u800csteam sdk\u7684c++\u63a5\u53e3\u5168\u90e8\u7528\u9ed8\u8ba4\u7684__thiscall\uff0c\u8fd0\u884c\u7684\u65f6\u5019caller\u628a\u53c2\u6570\u5f80\u5bc4\u5b58\u5668\u4e00\u4e22\u4e86\u4e8b\uff0c\u800ccallee\u8fd8\u82e6\u82e6\u5728ecx\u548c\u5806\u6808\u4e2d\u5bfb\u627e\uff0c\u4ee3\u7801\u5c31\u8dd1\u98de\u4e86\u3002<\/p>\n

\u89e3\u51b3\u65b9\u6848\u975e\u5e38\u60b2\u5267\uff0c\u5bf9\u4e8e\u6bcf\u4e2aclass\u7684\u6bcf\u4e2anon-static member function\uff0c\u90fd\u63d0\u4f9b\u4e00\u4e2a\u9759\u6001\u51fd\u6570\u4f5c\u4e3awrapper\u3002\u5185\u90e8\u5e2e\u4ed6\u4eec\u628a\u53c2\u6570\u4f4d\u7f6e\u8f6c\u6362\u4e00\u4e0b\uff0c\u7136\u540e\u518d\u8c03\u7528sdk\u4e2d\u7684\u5b9e\u9645\u4ee3\u7801\u3002<\/p>\n

\u7528macro\u5c01\u88c5\u7684\u6548\u679c\u5982\u4e0b\u6240\u793a\uff081\u4e2a\u53c2\u6570\uff09<\/p>\n

\r\n#define STEAM_API_CALL_WRAPPER1(ret, type, interface, index, var1)\t\\\r\nret STEAM_API_CALL type##_##interface(type * thisptr, var1) {\t   \t\\\r\n\tasm { \t\t\t\t\t\t\\\r\n\t\tMOV eax, [ebp + 4 * 3];\t\\\r\n\t\tpush eax;\t\t\t\t\\\r\n\t\tMOV ecx, thisptr;\t\t\\\r\n\t\tMOV edx, [ecx];\t\t\t\\\r\n\t\tCALL [edx + 4 * index];\t\\\r\n\t} \t\t\t\t\t\t\t\\\r\n}\r\n\/\/\r\n<\/pre>\n
\u4f7f\u7528\u4e4b\u524d\u5fc5\u987b\u9010\u4e2a\u5b9a\u4e49\uff0c\u8fd8\u5f97\u6ce8\u610f\u865a\u51fd\u6570\u5728\u865a\u8868\u4e2d\u7684\u4f4d\u7f6e\u3002\u4e0d\u5e78\u4e2d\u7684\u4e07\u5e78\u662fbcb\u548cvs\u7684\u865a\u8868\u6392\u5217\u90fd\u662f\u4e00\u6837\u7684\u3002\u4e07\u5e78\u4e2d\u7684\u4e0d\u5e78\u662f\uff0csteam sdk\u4e2d\u5c45\u7136\u8fd8\u6709\u5934\u6587\u4ef6\u548c\u7f16\u8bd1\u597d\u7684lib\u4e2d\u865a\u8868\u91cc\u51fd\u6570\u987a\u5e8f\u4e0d\u4e00\u81f4\u7684\u60c5\u51b5\u3002\u5927\u6982\u662f\u67d0\u4e2a\u7a0b\u5e8f\u5458\u624b\u8d31\u6ca1\u4e8b\u5c31\u8c03\u6574\u51fd\u6570\u7684\u4f4d\u7f6e\uff0c\u53c8\u4e0d\u80af\u91cd\u65b0\u7f16\u8bd1sdk\u5427\u2026\u2026<\/p>\n
\r\nSTEAM_API_CALL_WRAPPER1(bool, ISteamUserStats, SetAchievement, 7, const char *pchName);\r\n<\/pre>\n
\u7ecf\u8fc7\u8fd9\u4e48\u591a\u6298\u817e\u4e4b\u540e\uff0c\u7ec8\u4e8e\u6210\u529f\u5728bcb\u4e2d\u94fe\u63a5\u8fd0\u884c\u4e86steam sdk\u3002\u63a5\u4e0b\u6765\u53d1\u73b0\u8fd8\u6709callback\u7684\u95ee\u9898\uff0csteam\u8981\u8c03\u7528\u4ecebcb\u7a0b\u5e8f\u91cc\u4f20\u5165\u7684\u51fd\u6570\u6307\u9488\uff01\u89e3\u51b3\u65b9\u6cd5\u548c\u4e0a\u9762\u7c7b\u4f3c\uff0ccallback\u51fd\u6570\u4e5f\u9700\u8981\u6709\u4e00\u5c42wrapper\u2026\u2026<\/p>\n
\u53ea\u8981\u5bf9\u6240\u6709\u4f7f\u7528\u5230\u7684\u63a5\u53e3\u505a\u4e0a\u8ff0\u5904\u7406\uff0c\u6700\u7ec8\u4e00\u5207\u90fd\u548c\u8c10\u7f8e\u597d\u7684\u8fd0\u884c\u8d77\u6765\uff0c\u5b8c\u5168\u6ca1\u6709\u4f7f\u7528\u989d\u5916\u7684dll\uff0c\u76f4\u63a5\u5728bcb\u4e2d\u4f7f\u7528\u4e86steam_api.dll\u3002\u6211\u7814\u7a76\u4e86\u4e00\u4e0b\u7f51\u4e0a\u5df2\u6709\u7684\u5b9e\u73b0\uff0c\u90fd\u662f\u91c7\u7528\u5305\u88c5\u4e00\u4e2awrapper dll\u7684\u65b9\u5f0f\u3002\u6211\u8fd9\u8fb9\u7684\u65b9\u6cd5\u76f8\u5bf9\u5b89\u5168\u4e00\u4e9b\uff0c\u5426\u5219wrapper\u53ef\u4ee5\u88ab\u8f7b\u677e\u7684\u66ff\u6362\u6389\u3002\u5f53\u7136\u54af\uff0csteam\u6709\u63d0\u4f9b\u989d\u5916\u7684drm\u63aa\u65bd\uff0c\u7b80\u5355\u6362\u6389wrapper\u5e76\u4e0d\u80fd\u79fb\u9664steam\u7ed1\u5b9a\u5c31\u662f\u4e86\u3002\u6240\u4ee5\u5982\u679c\u4e0d\u662f\u50cf\u6211\u8fd9\u6837\u6709\u5f3a\u8feb\u75c7\u7684\u8bdd\uff0c\u5199\u4e2awrapper dll\u662f\u6700\u7b80\u5355\u76f4\u63a5\u7684\u65b9\u5f0f\u3002<\/p>\n
\u7ed3\u8bba\u662f\u5982\u679c\u4ee5\u540e\u9700\u8981\u5199\u4ec0\u4e48\u5bf9\u5916\u53d1\u5e03\u7684sdk\uff0c\u8fd8\u662f\u4ee5c\u63a5\u53e3\u7684\u5f62\u5f0f\u63d0\u4f9b\u6700\u5177\u6709\u517c\u5bb9\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e4b\u524d\u5e76\u6ca1\u6709\u5f88\u5728\u4e4e\u8fd9\u65b9\u9762\u7684\u4e8b\u60c5\uff0c\u76f4\u5230\u6700\u8fd1\u9700\u8981\u5728\u67d0\u4e2abcb\u7f16\u8bd1\u7684\u7a0b\u5e8f\u4e2d\u96c6\u6210steam sdk\u3002 \u6545\u4e8b\u662f\u8fd9\u6837\u7684\uff0csteam sdk\u63d0\u4f9b\u7684\u63a5\u53e3\u662fc++\u4ee3\u7801\uff0c\u5b98\u65b9\u53f7\u79f0\u652f\u6301visual studio\u548cgcc\u4e24\u79cd\u7f16\u8bd1\u5668\u3002\u4f46\u6211\u4e0d\u60f3\u5148\u505a\u4e00\u5c42\u5305\u88c5\u8f6c\u6362\u6210c\u7684\u63a5\u53e3\u518d\u4f7f\u7528\uff0c\u6240\u4ee5\u6253\u7b97\u5f3a\u884c\u5728bcb\u4e2d\u94fe\u63a5\u8fd9\u4e9blib\u3002 \u73b0\u5728\u95ee\u9898\u6765\u4e86\uff0c\u7531\u4e8ec++\u7684abi\u5f88\u6df7\u4e71\uff0c\u5fae\u8f6f\u53c8\u559c\u6b22\u73a9\u82b1\u6d3b\uff0c\u4e00\u65e6\u63a5\u53e3\u662fc++\u7684\u683c\u5f0f(class, virtual table)\u5c31\u5f88\u5fae\u5999\u3002\u8fd9\u5c31\u7275\u626f\u5230\u4e86calling convention\u7684\u4e8b\u60c5\uff0c\u4e5f\u5c31\u662f\u51fd\u6570\u8c03\u7528\u7ea6\u5b9a\u3002\u8fd9\u4ef6\u4e8b\u60c5\u672c\u6765\u5f88\u7b80\u5355\uff0c\u5728c\u7684\u65f6\u4ee3\u53ea\u8981\u89e3\u51b3\u4e24\u4e2a\u95ee\u9898\u5c31\u597d\uff1a1\u3001\u53c2\u6570\u4e2a\u6570\u662f\u4e0d\u662f\u56fa\u5b9a\u7684\u30022\u3001\u53c2\u6570\u662f\u5982\u4f55\u88ab\u653e\u5230\u5806\u6808\u4e2d\u7684\u3002\u7b2c\u4e8c\u4e2a\u95ee\u9898\u65e0\u5173\u75db\u75d2\uff0c\u6240\u4ee5c\u89c4\u5b9a\u53c2\u6570\u4e00\u5f8b\u662f\u4ece\u53f3\u5230\u5de6\u538b\u5165\u6808\u4e2d\uff0c\u8fd9\u6837\u7528\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u5f39\u51fa\u3002 \u6240\u4ee5calling convention\u53ea\u548c\u7b2c\u4e00\u4e2a\u95ee\u9898\u6709\u5173\uff0c\u8fd9\u6837\u5c31\u8bde\u751f\u4e86\u4e24\u4e2a\u5173\u952e\u5b57\uff1a __cdecl\uff1a\u652f\u6301\u4e0d\u56fa\u5b9a\u4e2a\u6570\u7684\u53c2\u6570\uff0c\u8c03\u7528\u65b9caller\u8d1f\u8d23\u6e05\u7406\u5806\u6808\u3002\u597d\u5904\u662fprintf\u4e4b\u7c7b\u7684\u4e1c\u897f\u53ef\u4ee5\u5b9e\u73b0\uff0c\u574f\u5904\u662f\u51fd\u6570\u5185\u90e8\u4e0d\u80fd\u5bf9\u5806\u6808\u73a9\u82b1\u6d3b\uff0c\u56e0\u4e3a\u7ba1\u7406\u6743\u5728\u5916\u9762\u3002 __stdcall\uff1a\u53c2\u6570\u4e2a\u6570\u56fa\u5b9a\uff0c\u88ab\u8c03\u7528\u65b9callee\u8d1f\u8d23\u6e05\u7406\u5806\u6808\u3002\u597d\u5904\u5c31\u662f\u51fd\u6570\u7ed3\u5c3e\u76f4\u63a5\u7528ret xx\u89e3\u51b3\u6240\u6709\u95ee\u9898\uff0c\u574f\u5904\u662f\u53c2\u6570\u4e2a\u6570\u56fa\u5b9a\uff0c\u56e0\u4e3a\u7f16\u8bd1\u671f\u5c31\u5f97\u51b3\u5b9aret\u4e4b\u540e\u7684\u5b57\u8282\u6570\u3002\u987a\u9053\u8bf4\uff0cCOM\u4e2d\u6240\u6709\u8c03\u7528\u90fd\u662f__stdcall\u3002 \u76ee\u524d\u4e3a\u6b62\u4e00\u5207\u8fd8\u662f\u6709\u5e8f\u7684\uff0c\u76f4\u5230link\u7684\u65f6\u5019\uff0c\u51fa\u73b0\u4e86name mangling\u7684\u95ee\u9898\u3002M$\u548cBorland\u4f7f\u7528\u4e86\u622a\u7136\u76f8\u53cd\u7684\u65b9\u5f0f\u6765\u4fee\u9970\u51fd\u6570\u540d\uff0c\u5177\u4f53\u53ef\u4ee5\u53c2\u8003\u300aUsing Visual C++ DLLs with C++Builder\u300b\u4e2d\u7684Table A\u3002\u8fd8\u597d\u53cc\u65b9\u90fd\u63d0\u4f9b\u4e86\u89e3\u51b3\u65b9\u6cd5\uff0c\u4efb\u9009\u4e00\u79cd\u5c31\u53ef\u4ee5\u751f\u6210\u5408\u9002\u7684\u7b26\u53f7\u540d\uff0c\u53ef\u4ee5\u6109\u5feb\u7684link\u3002 \u5373\u4f7flink\u6ca1\u6709\u95ee\u9898\uff0c\u95ee\u9898\u4e5f\u8fd8\u8fdc\u672a\u89e3\u51b3\uff0c\u4e00\u65e6\u5f00\u59cb\u4f7f\u7528c++\u7684\u63a5\u53e3\uff0crun-time\u7684\u95ee\u9898\u5c31\u6d6e\u73b0\u51fa\u6765\u3002\u8fd9\u5c31\u8981\u63d0\u5230M$\u7684\u53d1\u660e\uff1a __thiscall\uff1a\u7528\u4e8enon-static member 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