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Ðåôåðàò: Îò÷åò ïî ó÷åáíîé ïðàêòèêå ÎÀèÏ áàçà äàííûõ ñòóäåíòîâ (ñîçäàíèå, ïîèñê, óäàëåíèå, ñîðòèðîâêà, âñå, ÷òî íàäî íàïèñàííàÿ íà Ñ++)fclose(fp); } } void view(char *fn,int n) { void ramka(); FILE *fp; data st; char c; int counter=0; if ((fp = fopen(fn,"rb")) == NULL) { printf("File could not be opened.\n"); return; } ramka(); window(1,6,80,23); fseek(fp,(n-1)*sizeof(data),SEEK_SET); while (counter != 18) { fread(&st,sizeof(data),1,fp); if (feof(fp)) break; else { printf(" %4d %-16s %-12s %-17s %8s " "%7.2f\n",st.num,st.lastName,st.firstName, st.midName,st.groupNumber,st.mark); counter++; } } window(1,24,80,25); cprintf("-----------------------------------" "---------------------------------------------"); cprintf(" %c - ââåðõ, %c - âíèç , %c - âëåâî," " %c - âïðàâî, ESC - îòìåíà ",0x018,0x019,0x01B,0x01A); textcolor(10); textbackground(1); cprintf("%14s",fn); window(1,1,80,25); textcolor(15); fclose(fp); } void sort(char *fn) { FILE *fp; data s1,s2; int num=1,size=sizeof(data),counter=0,key=0; int oldfs,newfs,color[]={0,4,4,4,4}; while(1) { _setcursortype(_NOCURSOR); textcolor(10); cprintf("::::::::::::::::::::::::: Ì å í þ ñ î ð ò è ð î â ê è " ":::::::::::::::::::::::::"); switch(key) { case LEFT: if (counter>0) { color[counter]=4; color[--counter]=0; } break; case RIGHT: if (counter<4) { color[counter]=4; color[++counter]=0; } break; } textbackground(4); cprintf(" "); textcolor(WHITE); textbackground(color[0]);cprintf(" ïî ¹ çàïèñè "); textbackground(color[1]);cprintf(" ïî Ô.È.Î "); textbackground(color[2]);cprintf(" ïî ¹ ãðóïïû "); textbackground(color[3]);cprintf(" ïî ñð.áàëó "); textbackground(color[4]);cprintf(" Íàçàä "); textbackground(4);cprintf(" "); textbackground(1); view(fn,num); key=bioskey(0); switch(key) { case UP: num--;if (num==0) num=1; view(fn,num); break; case DOWN: num++;if (num+16>=get_number(fn)) num--; view(fn,num); break; } if (key==283) return; if (key == ENTER) { if ((fp=fopen(fn,"rb+")) == NULL) { cout<<"error.file does not exist."; return; } switch(counter) { case 1: /*-----------ïî Ô.È.Î--------------------*/ oldfs=1; newfs=0; fread(&s1,size,1,fp); while(oldfs) { fread(&s2,size,1,fp); if(feof(fp)) { if(!newfs) break; oldfs=1; newfs=0; rewind(fp); fread(&s1,size,1,fp); continue; } if (strcmp(s1.lastName,s2.lastName) > 0) { fseek(fp,-2*size,1); fwrite(&s2,size,1,fp); fwrite(&s1,size,1,fp); newfs=1; } if (strcmp(s1.lastName,s2.lastName) == 0) if (strcmp(s1.firstName,s2.firstName) > 0) { fseek(fp,-2*size,1); fwrite(&s2,size,1,fp); fwrite(&s1,size,1,fp); newfs=1; } if (strcmp(s1.firstName,s2.firstName) == 0) if (strcmp(s1.midName,s2.midName) > 0) { fseek(fp,-2*size,1); fwrite(&s2,size,1,fp); fwrite(&s1,size,1,fp); newfs=1; } else s1=s2; else s1=s2; } break; case 0: /*------------ÏÎ ÍÎÌÅÐÓ ÇÀÏÈÑÈ-----------*/ oldfs=1; newfs=0; fread(&s1,size,1,fp); while(oldfs) { fread(&s2,size,1,fp); if(feof(fp)) { if(!newfs) break; oldfs=1; newfs=0; rewind(fp); fread(&s1,size,1,fp); continue; } if (s1.num > s2.num) { fseek(fp,-2*size,1); fwrite(&s2,size,1,fp); fwrite(&s1,size,1,fp); newfs=1; } else s1=s2; } break; case 2: /*----------ÏÎ ÍÎÌÅÐÓ ÃÐÓÏÏÛ---------------*/ oldfs=1; newfs=0; fread(&s1,size,1,fp); while(oldfs) { fread(&s2,size,1,fp); if(feof(fp)) { if(!newfs) break; oldfs=1; newfs=0; rewind(fp); fread(&s1,size,1,fp); continue; } if (strcmp(s1.groupNumber,s2.groupNumber) > 0) { fseek(fp,-2*size,1); fwrite(&s2,size,1,fp); fwrite(&s1,size,1,fp); newfs=1; } else s1=s2; } break; case 3: /*---------ÏÎ ÑÐ.ÁÀËÓ----------------*/ oldfs=1; newfs=0; fread(&s1,size,1,fp); while(oldfs) { fread(&s2,size,1,fp); if(feof(fp)) { if(!newfs) break; oldfs=1; newfs=0; rewind(fp); fread(&s1,size,1,fp); continue; } if (s1.mark < s2.mark) { fseek(fp,-2*size,1); fwrite(&s2,size,1,fp); fwrite(&s1,size,1,fp); newfs=1; } else s1=s2; } break; case 4: fclose(fp); return; } fclose(fp); } } } void find(char *fn) { void ramka(); FILE* fp; data st; char string[15]; int pr,prs; int key=0,counter=0; int color[]={0,4,4,4}; while (1) { clrscr(); textcolor(10); cprintf("::::::::::::::::::::::::::::: Ì å í þ Ï î è ñ ê à " ":::::::::::::::::::::::::::::"); textcolor(WHITE); textbackground(4); cprintf(" "); switch(key) { case LEFT: if (counter>0) { color[counter]=4; color[--counter]=0; } break; case RIGHT: if (counter<3) { color[counter]=4; color[++counter]=0; } break; } textbackground(color[0]); cprintf(" ïî ¹ çàïèñè "); textbackground(color[1]); cprintf(" ïî Ôàìèëèè "); textbackground(color[2]); cprintf(" ïî Èìåíè "); textbackground(color[3]); cprintf(" Îòìåíà "); textbackground(4); cprintf(" "); textbackground(1); key=bioskey(0); if (key==283) return; if (key == ENTER) { if((fp=fopen(fn,"rb"))==NULL) { puts("File couldn't be open"); return; } switch(counter) { case 0: int number; pr=0; prs=1; cout<<"ÂÂÅÄÈÒÅ ÍÎÌÅÐ ÇÀÏÈÑÈ : "; fflush(stdin); scanf("%d",&number); rewind(fp); while(fread(&st,sizeof(data),1,fp)) { if (feof(fp)) { break; } if(st.num == number) { if (prs) { ramka(); gotoxy(1,6); prs=0; } printf(" %4d %-16s %-12s %-17s %8s " "%7.2f\n",st.num,st.lastName,st.firstName, st.midName,st.groupNumber,st.mark); pr=1; } } if(!pr) { cout<<"\nÇÀÏÈÑÈ Ñ ÒÀÊÈÌ ÍÎÌÅÐÎÌ ÍÅ ÑÓÙÅÑÒÂÓÅÒ"; } getch(); break; case 1: prs=1; pr=0; cout<<"ÂÂÅÄÈÒÅ ÔÀÌÈËÈÞ : "; fflush(stdin); cin>>string; rewind(fp); while(fread(&st,sizeof(data),1,fp)) { if (feof(fp)) break; if(!strcmp(st.lastName,string)) { if (prs) { ramka(); gotoxy(1,6); prs=0; } printf(" %4d %-16s %-12s %-17s %8s " "%7.2f\n",st.num,st.lastName,st.firstName, st.midName,st.groupNumber,st.mark); pr=1; } } if(!pr) { cout<<"\nÍÅÒ ÄÀÍÍÛÕ"; } getch(); break; case 2: prs=1; pr=0; cout<<"ÂÂÅÄÈÒÅ ÈÌß : "; fflush(stdin); cin>>string; rewind(fp); while(fread(&st,sizeof(data),1,fp)) { if (feof(fp)) break; if(!strcmp(st.firstName,string)) { if (prs) { ramka(); gotoxy(1,6); prs=0; } printf(" %4d %-16s %-12s %-17s %8s " "%7.2f\n",st.num,st.lastName,st.firstName, st.midName,st.groupNumber,st.mark); pr=1; } } if(!pr) { cout<<"\nÍÅÒ ÄÀÍÍÛÕ"; } getch(); break; case 3: fclose(fp); return; } fclose(fp); } } } void ramka() { window(1,3,80,6); cprintf("------------------------------------" "--------------------------------------------"); textcolor(14); cprintf("%5s %-16s %-12s %-17s %-8s %12s ", "¹","Ôàìèëèÿ","Èìÿ","Îò÷åñòâî","¹ ãðóïïû","Ñð.áàëë"); textcolor(WHITE); cprintf("------------------------------------" "--------------------------------------------"); window(1,1,80,25); } int find_max_num(char *fn) { FILE *fp; data st; int max; if ((fp = fopen(fn,"rb")) == NULL) { printf("File could not be opened.\n"); return -1; } max=0; while (fread(&st,sizeof(data),1,fp)) { if (feof(fp)) break; if (st.num>max) max=st.num; } fclose(fp); return max; } int get_number(char *fn) { FILE *fp; int fd,n=0; if ((fp = fopen(fn,"rb")) == NULL) { printf("File could not be opened.\n"); return -1; } fd=fileno(fp); n=filelength(fd)/sizeof(data); fclose(fp); return n; } void create() { FILE *fp; char *fn; cout<<"Ââåäèòå èìÿ íîâîé ÁÄ : "; fflush(stdin); cin>>fn; strcat(fn,".dat"); if ((fp=fopen(fn,"wb")) == NULL) { cout<<"Îøèáêà...Ôàéë íå ìîæåò áûòü ñîçäàí\n"; getch(); exit(10); } fclose(fp); interface(fn); } void open() { FILE *fp; char *fn; cout<<"Ââåäèòå èìÿ ÁÄ : "; fflush(stdin); cin>>fn; strcat(fn,".dat"); if (!(fp=fopen(fn,"rb"))) { cout<<"Îøèáêà...Ôàéë íå ìîæåò áûòü îòêðûò\n"; getch(); exit(10); } fclose(fp); interface(fn); } int check(char *fn, data st) { FILE *fp; data temp; int pr=0; if ((fp = fopen(fn,"rb")) == NULL) { printf("File could not be opened.\n"); return 0; } while ( fread( &temp, sizeof( data ), 1, fp)) { if (feof(fp)) break; if (!strcmp(st.lastName,temp.lastName) && !strcmp(st.firstName,temp.firstName) && !strcmp(st.midName,temp.midName) && !strcmp(st.groupNumber,temp.groupNumber) && (st.mark == temp.mark)) { pr=1; break; } } fclose(fp); return pr; } ÑÏÈÑÎÊ ËÈÒÅÐÀÒÓÐÛ
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Ðåôåðàòû áåñïëàòíî, ðåôåðàò áåñïëàòíî, êóðñîâûå ðàáîòû, ðåôåðàò, äîêëàäû, ðåôåðàòû, ðåôåðàòû ñêà÷àòü, ðåôåðàòû íà òåìó, ñî÷èíåíèÿ, êóðñîâûå, äèïëîìû, íàó÷íûå ðàáîòû è ìíîãîå äðóãîå. |
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Ïðè èñïîëüçîâàíèè ìàòåðèàëîâ - ññûëêà íà ñàéò îáÿçàòåëüíà. |
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