{"id":86,"date":"2014-03-07T08:38:22","date_gmt":"2014-03-07T08:38:22","guid":{"rendered":""},"modified":"2014-03-07T08:38:22","modified_gmt":"2014-03-07T08:38:22","slug":"","status":"publish","type":"post","link":"http:\/\/weizn.net\/?p=86","title":{"rendered":"main WinMain\u5165\u53e3\u51fd\u6570\u6bd4\u8f83"},"content":{"rendered":"

\n\tC\/C++\u8bed\u8a00\u4e2d\u7684main\u51fd\u6570, \u7ecf\u5e38\u5e26\u6709\u53c2\u6570argc, argv, \u5982\u4e0b\uff1a
\nint main(int argc, char** argv)
\nint main(int argc, char* argv[]) \/\/\u4e5f\u53ef\u4ee5\u662fwchar_t \u6216 tchar
\nargc \u662f\u6307\u547d\u4ee4\u884c\u8f93\u5165\u53c2\u6570\u7684\u4e2a\u6570, argv\u5b58\u50a8\u4e86\u6240\u6709\u7684\u547d\u4ee4\u884c\u53c2\u6570. \u5728\u547d\u4ee4\u884c\u4e0b, \u6bcf\u4e24\u4e2aargv[n]\u4e4b\u95f4\u4ee5\u7a7a\u683c\u5206\u9694.
\n\u5982\u5728\u547d\u4ee4\u884c\u4e0b\u8f93\u5165 test.exe a b
\nargc \u4e3a 3
\nargv[0] \u4e3a “test.exe”
\nargv[1] \u4e3a “a”
\nargv[2] \u4e3a “b”\n<\/p>\n

\n\t\u4ee5\u4e0b\u4e00\u4e2a\u7b80\u5355\u7684\u7a0b\u5e8f\u53ef\u4ee5\u5e2e\u4f60\u770b\u770bargc, argv\u5177\u4f53\u4ee3\u8868\u4ec0\u4e48.
\n#include <stdio.h>\n<\/p>\n

\n\tint main(int argc, char* argv[])
\n{
\n    for (int i = 0; i < argc; i++)
\n    {
\n        printf(“%s\\n”, argv[i]);\/\/\u901a\u8fc7\u5904\u7406argv[0]\u53ef\u4ee5\u83b7\u5f97\u5f53\u524d\u53ef\u6267\u884c\u7a0b\u5e8f\u6240\u5728\u7684\u8def\u5f84\u54e6\u3002
\n    }
\n    return 0;
\n}\n<\/p>\n

\n\t\u53e6\u5916, vc\u73af\u5883\u4e0b\u5411\u7a0b\u5e8f\u4f20\u9012\u53c2\u6570\u53ef\u4ee5\u5728 Debugging -> command argument \u4e0b\u8bbe\u7f6e. (\u4e0b\u9762\u8bf4\u7684WinMain\u4e5f\u4e00\u6837)\n<\/p>\n

\n\t\u5728VS2008\u4e0b\uff0c\u53f3\u952e\u8981\u8c03\u8bd5\u7684\u9879\u76ee\u2014>Properties\u2014>Debugging\u2014>Command Arguments\u2014>\u8f93\u5165\u4f60\u8981\u8f93\u5165\u7684\u53c2\u6570\u5373\u53ef\u3002<\/span><\/strong>
\nWinMain\u51fd\u6570\u7684\u539f\u578b\u58f0\u660e\u5982\u4e0b\uff1a
\nint WINAPI WinMain(
\n                HINSTANCE hInstance,     \/\/ handle to current instance
\n                HINSTANCE hPrevInstance, \/\/ handle to previous instance
\n                LPSTR lpCmdLine,         \/\/ command line
\n                int nCmdShow             \/\/ show state
\n);\n<\/p>\n

\n\tWinMain\u51fd\u6570\u63a5\u65364\u4e2a\u53c2\u6570, \u8fd9\u4e9b\u53c2\u6570\u90fd\u662f\u5728\u7cfb\u7edf\u8c03\u7528WinMain\u51fd\u6570\u65f6, \u4f20\u9012\u7ed9\u5e94\u7528\u7a0b\u5e8f\u7684.
\n\u7b2c\u4e00\u4e2a\u53c2\u6570hInstance\u8868\u793a\u8be5\u7a0b\u5e8f\u5f53\u524d\u8fd0\u884c\u7684\u5b9e\u4f8b\u7684\u53e5\u67c4, \u8fd9\u662f\u4e00\u4e2a\u6570\u503c. \u5f53\u7a0b\u5e8f\u5728Windows\u4e0b\u8fd0\u884c\u65f6, \u5b83\u552f\u4e00\u6807\u8bc6\u8fd0\u884c\u4e2d\u7684\u5b9e\u4f8b\uff08\u6ce8\u610f,
\n\u53ea\u6709\u8fd0\u884c\u4e2d\u7684\u7a0b\u5e8f\u5b9e\u4f8b, \u624d\u6709\u5b9e\u4f8b\u53e5\u67c4\uff09. \u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u8fd0\u884c\u591a\u4e2a\u5b9e\u4f8b, \u6bcf\u8fd0\u884c\u4e00\u4e2a\u5b9e\u4f8b, \u7cfb\u7edf\u90fd\u4f1a\u7ed9\u8be5\u5b9e\u4f8b\u5206\u914d\u4e00\u4e2a\u53e5\u67c4\u503c,
\n\u5e76\u901a\u8fc7hInstance\u53c2\u6570\u4f20\u9012\u7ed9WinMain\u51fd\u6570.
\n\u7b2c\u4e8c\u4e2a\u53c2\u6570hPrevInstance (MSDN)\u5728Win32\u73af\u5883\u4e0b, \u8fd9\u4e2a\u53c2\u6570\u4e0d\u8d77\u4f5c\u7528\uff0c\u5386\u53f2\u9057\u7559\uff0chPrevInstance=NULL\uff1b
\n\u7b2c\u4e09\u4e2a\u53c2\u6570lpCmdLine\u662f\u4e00\u4e2a\u4ee5\u7a7a(‘\\0’)\u7ec8\u6b62\u7684\u5b57\u7b26\u4e32, \u6307\u5b9a\u4f20\u9012\u7ed9\u5e94\u7528\u7a0b\u5e8f\u7684\u547d\u4ee4\u884c\u53c2\u6570.
\n\u6ce8: \u8fd0\u884c\u53c2\u6570\uff0c\u4f8b\u5982\u5728\u547d\u4ee4\u884c\u952e\u5165\uff1atest.exe
\n\/install\uff0c\u90a3\u4e48\u7a0b\u5e8f\u5165\u53e3WinMain\u5904\uff0c\u5176\u53c2\u6570lpCmdLine\u5c31\u63a5\u6536\u5230\u4e86\/install\u53c2\u6570\u3002\u4f46\u662f\uff0c\u81f3\u4e8e\u4f60\u7528\u8fd9\u4e2a\u53c2\u6570\u505a\u4ec0\u4e48\uff0c\u90a3\u662f\u7528\u4ee3\u7801
\n\u5b9e\u73b0\uff0c\u4f60\u5373\u65f6\u5bf9\/INSTALL\u53c2\u6570\u505a\u4e86\u4e00\u4e2a”uninstall”\u7684\u5904\u7406\uff0c\u4e5f\u662f\u53ef\u4ee5\u7684\u3002\u800c\u5b9e\u73b0\u5b89\u88c5,\u8fd9\u9700\u8981\u6839\u636e\u4f60\u7684\u9700\u6c42\u52a0\u5165\u4ee3\u7801\uff0c\u548c\u547d\u4ee4\u884c\u53c2\u6570\u65e0\u5173\u3002\n<\/p>\n

\n\t\u8fd9\u4e2a\u8ddf\u547d\u4ee4\u884c\u7684int main(int argc, char* argv[])\u4e0d\u540c
\n\u5982\u4e0a\u6587test.exe a b
\n      lpCmdLine \u4e3a “a b”\n<\/p>\n

\n\t\u7b2c\u56db\u4e2a\u53c2\u6570nCmdShow\u6307\u5b9a\u7a0b\u5e8f\u7684\u7a97\u53e3\u5e94\u8be5\u5982\u4f55\u663e\u793a, \u4f8b\u5982\u6700\u5927\u5316\u3001\u6700\u5c0f\u5316\u3001\u9690\u85cf\u7b49. \u8fd9\u4e2a\u53c2\u6570\u7684\u503c\u7531\u8be5\u7a0b\u5e8f\u7684\u8c03\u7528\u8005\u6240\u6307\u5b9a, \u5e94\u7528\u7a0b\u5e8f\u901a\u5e38\u4e0d\u9700\u8981\u53bb\u7406\u4f1a\u8fd9\u4e2a\u53c2\u6570\u7684\u503c.\n<\/p>\n

\n\t\u6ce8\u610f\uff1aC\u8bed\u8a00\u7684Windows API\u7f16\u7a0b\uff0c\u5e76\u4e0d\u4e00\u5b9a\u9700\u8981\u4f7f\u7528WinMain\u5165\u53e3\u51fd\u6570\u3002
\n    \u5982\u679c\u4e0d\u4f7f\u7528WinMain\u7684\u56db\u4e2a\u53c2\u6570\uff0c\u90a3\u4e48\u76f4\u63a5\u4f7f\u7528main\u4ee3\u66ffWinMain\u5c31\u5b8c\u5168\u53ef\u4ee5\u4e86\u3002
\n    \u5982\u679c\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u4e86WinManin\u7684\u67d0\u4e2a\u53c2\u6570\uff0c\u90a3\u4e48\u4e5f\u53ef\u4ee5\u7528main\u66ff\u4ee3\uff0c\u4f46\u662f\u9700\u8981\u589e\u52a0WinMain\u7684\u56db\u4e2a\u53c2\u6570\u4f5c\u4e3a\u53d8\u91cf\uff0c\u5982\u4e0b\u6240\u793a\uff1a
\n    main()
\n   {
\n         ….  
\n         HINSTANCE hInstance;   
\n         int iCmdShow;   
\n         LPTSTR szCmdLine;   
\n         hInstance=GetModuleHandle(NULL);  \/\/\u83b7\u53d6\u7a0b\u5e8f\u672c\u8eab\u7684\u5b9e\u4f8b\u53e5\u67c4   
\n         iCmdShow=SW_SHOWNORMAL;\/\/\u5b9a\u4e49\u7a97\u53e3\u663e\u793a\u6a21\u5f0f   
\n         szCmdLine=GetCommandLine();\/\/\u83b7\u53d6\u547d\u4ee4\u884c\u5b57\u7b26\u4e32  
\n        \uff08hPrevInstance=NULL;\u4e00\u822c\u7a0b\u5e8f\u7528\u4e0d\u5230\u8fd9\u4e2a\u53c2\u6570\uff09
\n         ….
\n    }  
\n   \u4e0d\u8fc7\u6709\u4e00\u70b9\u8981\u8bf4\u660e\u7684\u5c31\u662fGetCommandLine()\u51fd\u6570\u8fd4\u56de\u7684\u547d\u4ee4\u884c\u53c2\u6570\u5e26\u6709\u6267\u884c\u7a0b\u5e8f\u672c\u8eab\u7684\u540d\u5b57\uff0c\u800cWinMain\u7684\u53c2\u6570LPSTR lpCmdLine\u662f\u4e0d\u5305\u542b\u6267\u884c\u7a0b\u5e8f\u7684\u540d\u5b57\u672c\u8eab\u7684\u3002
\n   \u7528main\u4ee3\u66ffWinMain\u9664\u4e86\u547d\u4ee4\u884c\u53c2\u6570\u662f\u5426\u5305\u542b\u7a0b\u5e8f\u672c\u8eab\u540d\u5b57\u8fd9\u4e00\u70b9\u5916\uff0c\u5176\u4ed6\u672a\u53d1\u73b0\u4e0d\u540c\u3002\n<\/p>\n

\n\t\u6d4b\u8bd5\u4e00\u4e0b\uff0c\u5c31\u7528\u4e00\u4e2a\u6700\u7b80\u5355\u7a0b\u5e8f\uff1a<\/span>\n<\/p>\n

\n\tWinMain<\/span>\u7248\uff1a<\/span>\n<\/p>\n

\n\t#include<windows.h>
\nint WINAPI WinMain(HINSTANCE h1,HINSTANCE h2,LPTSTR cmdline,int cmdshow)
\n{    
\n MessageBox(NULL, 
\n               cmdline,
\n               “CmdLine”, 
\n               MB_OK | MB_ICONINFORMATION);<\/span>\n<\/p>\n

\n\t    return 0;
\n}<\/span>\n<\/p>\n

\n\t\"\"\n<\/p>\n

\n\t\u56e0\u4e3a<\/span>WinMain<\/span>\u7684<\/span>cmdline<\/span>\u4e0d\u5305\u542b\u7a0b\u5e8f\u540d\uff0c\u6240\u4ee5\u5c31\u4ec0\u4e48\u4e5f\u6ca1\u6709\u663e\u793a\u3002<\/span>\n<\/p>\n

\n\tmain<\/span>\u7248\uff1a<\/span>\n<\/p>\n

\n\t#include<windows.h>
\nint main(int argc,char *argv)
\n{
\n    LPTSTR cmdline;  \/\/<\/span>\u8981\u7528\u5230\u8fd9\u4e2a\u53c2\u6570\uff0c\u5c31\u7528\u53d8\u91cf\u4ee3\u66ff\u539f\u6765\u7684\u53c2\u6570<\/span>
\n    cmdline=GetCommandLine();\/\/<\/span>\u83b7\u53d6\u547d\u4ee4\u884c\u5b57\u7b26\u4e32\uff0c\u5305\u62ec\u7a0b\u5e8f\u540d\u672c\u8eab<\/span>\n<\/p>\n

\n\t   MessageBox(NULL, 
\n               cmdline,
\n               “CmdLine”, 
\n               MB_OK | MB_ICONINFORMATION);<\/span>\n<\/p>\n

\n\t    return 0;
\n}<\/span>\n<\/p>\n

\n\t\"\"\n<\/p>\n

\n\t\u7528<\/span>main<\/span>\u4ee3\u66ff<\/span>WinMain<\/span>\u9664\u4e86\u547d\u4ee4\u884c\u53c2\u6570\u662f\u5426\u5305\u542b\u7a0b\u5e8f\u672c\u8eab\u540d\u5b57\u8fd9\u4e00\u70b9\u5916\uff0c\u5176\u4ed6\u672a\u53d1\u73b0\u4e0d\u540c\u3002<\/span>\n<\/p>\n

\n\t\u6d4b\u8bd5\u4e86\u300a<\/span>Windows<\/span>\u7a0b\u5e8f\u8bbe\u8ba1\u7b2c\u4e94\u7248\u300b\u4e2d\u7684\u51e0\u4e2a\u7a0b\u5e8f\uff0c\u90fd\u53ef\u4ee5\u6b63\u5e38\u8fd0\u884c\u3002<\/span>\n<\/p>\n

\n\t\u6700\u540e\u8865\u5145\u8bf4\u660e\uff1a\u5bf9\u4e8e<\/span>iCmdShow<\/span>\u8fd8\u53ef\u4ee5\u4e0d\u5728\u7a0b\u5e8f\u4e2d\u6307\u5b9a\uff0c\u7531\u7cfb\u7edf\u8f93\u5165\u83b7\u5f97\uff1a<\/span>\n<\/p>\n

\n\tSTARTUPINFO   StartupInfo;   
\nmemset(&StartupInfo,0,sizeof(STARTUPINFO));
\nGetStartupInfo(&StartupInfo);
\niCmdShow = (int)StartupInfo.wShowWindow;\/\/<\/span>\u83b7\u53d6\u7a97\u53e3\u663e\u793a\u6a21\u5f0f<\/span>\n<\/p>\n

\n\t\u53e6\u5916\u4e3a\u4e86\u83b7\u5f97\u66f4\u51c6\u786e\u7684<\/span>cmdline<\/span>\uff0c\u53ef\u4ee5\u81ea\u7f16\u4e00\u4e2a\u51fd\u6570\uff0c\u4e0d\u8fc7\u6211\u81ea\u7f16\u7684\u8fd9\u4e2a\u51fd\u6570\uff0c\u4f1a\u53bb\u6389\u547d\u4ee4\u884c\u4e2d\u591a\u4f59\u7684\u7a7a\u683c\uff1a<\/span>\n<\/p>\n

\n\t\/\/<\/span>\u7528\u8fd9\u4e2a\u51fd\u6570\u53ef\u4ee5\u8fd4\u56de\u53bb\u6389\u4e86\u591a\u4f59\u7a7a\u683c\u7684<\/span>szCmdLine
\nLPTSTR GetCmdLine(int argc,char *argv[])
\n{
\n    int i=0;
\n    int length=0;
\n    char * cmdline;
\n    if(argc<2)
\n        return TEXT(“”);
\n    for(i=1; i<argc; i++)
\n    {
\n        length=length + strlen(argv[i]);
\n    }
\n    cmdline = (char *)malloc(sizeof(char)*(length + argc -1));
\n    strcpy(cmdline,argv[1]);
\n    if(argc>2)
\n    {
\n        for(i=2;i<argc;i++)
\n        {
\n            strcat(cmdline,” “);
\n            strcat(cmdline,argv[i]);
\n        }
\n    }
\n    return TEXT(cmdline);
\n}<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\n\tC\/C++\u8bed\u8a00\u4e2d\u7684main\u51fd\u6570, \u7ecf\u5e38\u5e26\u6709\u53c2\u6570argc, argv, \u5982\u4e0b\uff1a
\nint main(int argc, char** argv)
\nint main(int argc, char* argv[]) \/\/\u4e5f\u53ef\u4ee5\u662fwchar_t \u6216 tchar
\nargc \u662f\u6307\u547d\u4ee4\u884c\u8f93\u5165\u53c2\u6570\u7684\u4e2a\u6570, argv\u5b58\u50a8\u4e86\u6240\u6709\u7684\u547d\u4ee4\u884c\u53c2\u6570. \u5728\u547d\u4ee4\u884c\u4e0b, \u6bcf\u4e24\u4e2aargv[n]\u4e4b\u95f4\u4ee5\u7a7a\u683c\u5206\u9694.
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