"C + + Academy" 0729-speech recognition/const keyword/string application/memory allocation and processing massive amounts of data

Speech recognition

Er.xml

<?xml version= "1.0" encoding= "Utf-8"? ><grammar langid= "804" >  <DEFINE>    <id name= "CMD" Val= "/>    </DEFINE>  <rule name=" COMMAND "id=" CMD "toplevel=" ACTIVE ">    <L>      <P> Explorer </P>      <P> open Penguin </P>      <P> close Penguin </P>      <P> shut down </P>      <P> Restart </P>      <P> notepad </P>      <P> calculator </P>      <P> drawing board </P>     <P> Tan Sheng </P>      </L>    </RULE>  </GRAMMAR>

Yuyin.cpp

#include <windows.h> #include <atlstr.h> #include <sphelper.h> #include <sapi.h> #include < comutil.h> #include <string.h> #include <stdlib.h> #pragma comment (lib, "Sapi.lib") #pragma comment (lib, "Comsupp.lib") #define GID_CMD_GR 333333#define wm_recoevent wm_user+1 LRESULT CALLBACK WndProc (Hwnd,uint,wparam, LPARAM); Char szappname[] = "Tsinghuayincheng"; BOOL B_INITSR; BOOL B_cmd_grammar;  ccomptr<isprecocontext>m_cprecoctxt; Speech Recognition Program Interface ccomptr<isprecogrammar>m_cpcmdgramma; Recognition Syntax ccomptr<isprecognizer>m_cprecoengine; Speech recognition engine int WINAPI WinMain (hinstance hinstance,hinstance hprevinstance,pstr szcmdline,int icmdshow) {HWND hwnd; M SG msg; Wndclass Wndclass; Wndclass.cbclsextra = 0; Wndclass.cbwndextra = 0; Wndclass.hbrbackground = (hbrush) getstockobject (White_brush); Wndclass.hcursor =loadcursor (Null,idc_arrow); Wndclass.hicon =loadicon (null,idi_application); Wndclass.hinstAnce =hinstance; Wndclass.lpfnwndproc =wndproc; Wndclass.lpszclassname =szappname; Wndclass.lpszmenuname =null; Wndclass.style =cs_hredraw|cs_vredraw; if (! RegisterClass (&wndclass)) {MessageBox (Null,text ("This program requires Windows nt!"), Szappname,mb_iconerror); return 0; } hwnd=createwindow (Szappname, TEXT ("Preach wisdom Podcast C + + Academy speech Recognition Tutorial"), Ws_overlappedwindow, Cw_usedefault, Cw_usede FAULT, Cw_usedefault, cw_usedefault, NULL, NULL, HINSTANCE, NULL); ShowWindow (hwnd,icmdshow);  UpdateWindow (HWND); while (GetMessage (&msg,null,0,0)) {translatemessage (&msg); DispatchMessage (&AMP;MSG); } return Msg.wparam; } LRESULT CALLBACK WndProc (HWND hwnd,uint message,wparam wparam,lparam LPARAM) {HDC hdc; Paintstruct PS; Switch (message) {case WM_CREATE: {//Initialize COM port:: CoInitializeEx (null,coinit_apartmentthreaded);//create recognition engine COM instance for shared type HRESULT hr=m_cprecoengine.cocreateinstance (Clsid_spsharedrecognizer); Creating a recognition contextInterface if (SUCCEEDED (HR)) {Hr=m_cprecoengine->createrecocontext (&m_cprecoctxt);} else MessageBox (Hwnd,text (" Error1 "), TEXT (" error "), S_OK); Set the recognition message so that the computer listens for voice messages at all times if (SUCCEEDED (HR)) {hr=m_cprecoctxt->setnotifywindowmessage (hwnd,wm_recoevent,0,0);} else MessageBox (Hwnd,text ("Error2"), TEXT ("error"), S_OK); Set events we are interested in if (SUCCEEDED (HR)) {Ulonglong Ullmyevents=spfei (Spei_sound_start) | Spfei (spei_recognition) | Spfei (Spei_sound_end); Hr=m_cprecoctxt->setinterest (ullmyevents,ullmyevents); } else MessageBox (Hwnd,text ("Error3"), TEXT ("error"), S_OK); Create grammar rules b_cmd_grammar=true; if (FAILED (HR)) {MessageBox (Hwnd,text ("Error4"), TEXT ("error"), S_OK);} Hr=m_cprecoctxt->creategrammar (Gid_cmd_ Gr,&m_cpcmdgramma); WCHAR wszxmlfile[20]=l "Yuyinliebiao.xml"; MultiByteToWideChar (cp_acp,0, (LPCSTR) "Yuyinliebiao.xml", -1,wszxmlfile,256); Hr=m_cpcmdgramma->loadcmdfromfile (wszxmlfile,splo_dynamic); if (FAILED (HR)) {MessageBox (Hwnd,text ("Error5"), TEXT ("error"), S_OK);} b_initsr=true; At the beginning of the recognition, the activation syntax entersLine Identification Hr=m_cpcmdgramma->setrulestate (null,null,sprs_active); return 0;             } case wm_recoevent: {rect rect;             GetClientRect (Hwnd,&rect); HDC=GETDC (HWND); Uses_conversion; Cspevent event; while (event. Getfrom (m_cprecoctxt) ==S_OK) {switch (Event.eeventid) {case spei_recognition: {static const             WCHAR wszunrecognized[]=l "<Unrecognized>";     Cspdynamicstring Dstrtext; Gets the recognition result if (FAILED (event. Recoresult ()->gettext (sp_getwholephrase,sp_getwholephrase,true,&dstrtext,null))) {dstrText=     wszunrecognized;             } BSTR srout; Dstrtext.copytobstr (&srout);     char* lpszText2 = _com_util::convertbstrtostring (srout);          if (B_cmd_grammar) {if (Strstr ("explorer", LpszText2)!=null) {System ("c:\\"); DrawText (Hdc,text ("explorer"), -1,&rect,dt_singleline| dt_center|         Dt_vcenter); } if (Strstr ("Open Penguin", lpszText2)!=null) {System ("\" C:\\Program FileS\\tencent\\qq\\qqprotect\\bin\\qqprotect.exe\ ""); DrawText (Hdc,text ("Open Penguin"), -1,&rect,dt_singleline| dt_center|         Dt_vcenter);  } if (Strstr ("Close Penguin", lpszText2)! = NULL) {System ("taskkill/f/im QQ.exe"); DrawText (HDC, TEXT ("Close Penguin"),-1, &rect, Dt_singleline | Dt_center |  Dt_vcenter);  } if (Strstr ("Shutdown", lpszText2)! = NULL) {System ("shutdown-s-T 1200"); DrawText (HDC, TEXT ("Shut Down"),-1, &rect, Dt_singleline | Dt_center |  Dt_vcenter);  } if (Strstr ("Restart", lpszText2)! = NULL) {System ("shutdown-r-T 1200"); DrawText (HDC, TEXT ("Restart"),-1, &rect, Dt_singleline | Dt_center |  Dt_vcenter);  } if (Strstr ("notepad", lpszText2)! = NULL) {System ("Notepad"); DrawText (HDC, TEXT ("Notepad"),-1, &rect, Dt_singleline | Dt_center |  Dt_vcenter);  } if (Strstr ("Calculator", lpszText2)! = NULL) {System ("calc"); DrawText (HDC, TEXT ("Calculator"),-1, &rect, Dt_singleline | Dt_center |  Dt_vcenter);  } if (Strstr ("drawing board", lpszText2) = NULL) {System ("MSPaint"); DrawText (hdc, TEXT ("drawing board"),-1, &rect, Dt_singleline | Dt_center |  Dt_vcenter); } if (Strstr ("Tan Sheng", lpszText2)! = NULL) {DrawText (hdc, TEXT ("This is a wretched man"),-1, &rect, Dt_singleline | Dt_center |  Dt_vcenter); }}}}} return TRUE; } Case Wm_paint:hdc=beginpaint (HWND,&AMP;PS); EndPaint (HWND,&AMP;PS); return 0; Case Wm_destroy:postquitmessage (0); return 0; } return DefWindowProc (Hwnd,message,wparam,lparam); }

const keyword

Const int *p; int const *P;

Const * address can not be modified

int *const p;

*const data pointed to cannot be modified

#include <stdio.h>void main01 () {int num = 10;//const int data;//data = 20;const int data = 20;//const modified variable, only when initialized Operation GetChar (); Const on the left, the address itself can not be modified, you can change the pointer point. Can only read cannot write void main02 () {int num = 10;const int data = 20;//const int *p;//equivalent to int const *p;int CONST *P;P = #printf ("%d\n", *p) ;p = &data;printf ("%d\n", *p);//*p = 30;//getchar ();} Const on the right, the data pointed to cannot be modified void main () {int num = 10;const int data = 20;int *const p = #//only at initialization time, specify a unique point to//int *const p;//p = #printf ("%d\n", *p),//p = &data;*p = 30;printf ("%d\n", *p); GetChar ();} void Main04 () {int num = 10;const int data = 20;const int *const p = #printf ("%d\n", *p);//*p = 30;//p = &data;getchar ( );}

String application

#define _CRT_SECURE_NO_WARNINGS//close security check #include<stdio.h> #include <stdlib.h> #include <string.h># Include <windows.h>void main1 () {//char str[100] = "for/l%i in (1,1,5) does calc";//char *p = "for/l%i in (1,1,5) d O Calc ";//str[0] ="; STR is an array that stores strings for each character//*p = ';p is a pointer to store the address of the string char str[100] = {0};//printf ("for/l%%i in (1,1,%d) does%s", 5, "Calc"); int n Um;char op[30] = {0};scanf ("%d%s", &num, op), sprintf (str, "for/l%%i in (1,1,%d) do%s", num, op); system (str); syste M ("Pause");} void Main2 () {char str[100] = {0};char op[30] = {0};scanf ("%s", op); sprintf (str, "taskkill/f/im%s", op); system (STR); System ("Pause");} void Main3 () {System ("tasklist"); for (int i = 0x0; I <= 0xf; i++) {char str[30] = {0};//storage instruction sprintf (str, "Color%x%x", I,0XF-I);//Print command System (str);//discoloration Sleep (500);}} void Main4 () {char str[100] = "I have $1000"; int num;sscanf (str, "I have%d", &num);p rintf ("%d", num); system ("pause"); void Main5 () {//printf ("%.6s\n", "1234.ABCD"), char str[100] = "Notepad8888 "; char newstr[100] =" "; sprintf (Newstr,"%.s ", str); system (NEWSTR); System (" pause "); void Main6 () {char str1[100] = "note"; char str2[100] = "pad";//system (str1 + str2); char str3[100] = {0};sprintf (STR3, "% s%s ", str1, str2);//String addition System (STR3);} void Main7 () {//printf ("%.6s", "1234.ABCD"), char str[100] = "notepad8888"; char newstr[100] = ""; sprintf (Newstr, "%-10.7s ", str);//10 width, + right alignment within width range,-left alignment,. 7 digs 7 characters from left to right printf (" [%s] ", NEWSTR), System (NEWSTR); System (" Pause ");} int Mystrlen (char* str) {int i = 0;for (char*p = str; *p! = ' + '; p++) {i++;} Return i;//implements string statistics}int Mystrlena (char* str) {char *p = Str;int i = 0; Aaa:if (*p!= ') {i++; p++; goto AAA;} return i;} int Mystrlenb (char *str) {if (*str== ') {return 0;} Else{return 1 + mystrlenb (++STR);}} void Main8 () {char str[100] = "China is good";p rintf ("%d", sizeof (str));//array buffer length printf ("\n%d", Mystrlen (str));// From the beginning of the first character to the \n%d character printf ("Mystrlena"),///from the first character to the \ n character printf ("\n%d", Mystrlenb (str));//From the beginning of the first character to the GetChar character ();} void Main9 () {Char StR1[100] = "My name is YinCheng"; char str2[30] = "Chen", char *p = strstr (str1, str2), if (p = = NULL) {printf ("not Found");} else{printf ("Find%p,%c,%s", p, *p, p);} GetChar ();}

memory allocation and processing of massive amounts of data

#include <stdio.h> #include <stdlib.h>//m, N generates an array, m row n column void main () {int *p = (int*) malloc (sizeof (int) * 40); /one-dimensional array for (int *px = p,i=0; px < p + N; px++,i++)//{*px = i;//Assignment printf ("%d,%p\n", *px, px),//Pointer loop}//int b[5][8];p rintf ( "\n\n\n"); Int (*PP) [8] = (int (*) [8]) p;//pointer type determines how access is made to (int i = 0; i < 5; i++) {for (int j = 0; J < 8; J + +) {//printf ("%5d", Pp[i][j]);//Print Data printf ("%5d", * (* (pp + i) + j));//pp[i][j]}printf ("\ n");} A [4][2][5]printf ("\n\n\n"); Int (*PPP) [2][5] = (int (*) [2][5]) p;for (int i = 0; i < 4; i++) {for (int j = 0; J < 2; j + +) {for (int k = 0; k < 5; k++) {//printf ("%5d", ppp[i][j][k]);//print element printf ("%5d", * (* (* (PPP + i) + j) + K));} printf ("\ n");} printf ("\n\n\n");} System ("Pause");}

#define _CRT_SECURE_NO_WARNINGS//close security check #include<stdio.h> #include <stdlib.h> #include <string.h> Char **pp=null;//stores the address of an array of pointers//13180807 *4/1024/1024 50Mvoid initdatatomem (char *path) {pp = (char * *) malloc (sizeof (CH AR *) * 13180807);//allocation pointer array file *PF = fopen (path, "R"), if (PF = = NULL) {printf ("fail");} else{for (int i = 0; i < 13180807; i++) {char str[275] = {0};//reads the buffer of the string fgets (str, 275, PF);//reads the string int strlength from the file row by line = strlen (str) + 1;//Gets the string length to allocate char *PX = (char *) malloc (sizeof (char) *strlength);//Allocate Memory strcpy (px, str);//Copy String px[ Strlength-1] = ' + ';//Set the last character to ' pp[i ' = px;//stores the first address of the string to the pointer array}}printf ("Load Memory ok\n");} void Findstr (char *searchstr) {for (int i = 0; i < 13180807; i++) {//pp[i];//is a pointer char *ptemp = STRSTR (Pp[i], searchstr) ;//Traverse all pointers array address, string find if (ptemp! = NULL) {printf ("\n%s", Pp[i]);//print string}}}int getfilesize (char *path) {file *pf;//file pointer pf = fopen (Path, "R");//Read mode open if (PF = = NULL) {return-1;//stands for failed}else{fseek (PF, 0, seek_end);//to end of file int num = Ftell (PF);//The number of bytes fclose (PF) at the beginning of the file to the current position;//closing the file return num;}}  int Getn (char *path) {file *pf;//files pointer pf = fopen (path, "R");//Read mode open if (PF = = NULL) {return-1;//represents get failed}else{int i = 0;while (!feof (PF))//whether to the end of the file {char str[275];fgets (str, 275, PF);//read one row i++;//count rows}fclose (PF);//close file return i;}} void Main () {/*char *path = "c:\\users\\yincheng01\\desktop\\old\\dangdangwang.txt"; int num = getfilesize (path);p rintf ("%d bytes,%fk,%fm", Num, num/1024.0, num/1024.0/1024.0);p rintf ("\ n%d lines", GETN (Path)); */char *path = "C:\\users\\yinchen G01\\desktop\\old\\dangdangwang.txt "; initdatatomem (path); while (1) {char searchstr[100] = {0};scanf ("%s ", Searchstr) ; findstr (SEARCHSTR);} System ("Pause");}

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"C + + Academy" 0729-speech recognition/const keyword/string application/memory allocation and processing massive amounts of data