tongxunlu.rar_电话号码_通讯簿

/*编程建立一通讯簿，存放有姓名、电话号码、住址，然后对通信簿进行查找、添加、修改及删除。*/ #include<stdio.h> struct person { char name[15]; char tel[15]; char addr[30]; char email[30]; }; char filename[20]; FILE *fp; void creat(); void output(); void search(); void append(); void modify(); void delet(); main() { int m; creat(); while(1) { printf("\n\nadd, Press 1"); printf("\nsearch, Press 2"); printf("\nmodify Press 3"); printf("\ndelete, Press 4"); printf("\nshow, Press 5"); printf("\nexit, Press 0\n"); scanf("%d",&m); if(m>=0&&m<=5) { switch(m) { case 1: append(); break; case 2: search(); break; case 3: modify(); break; case 4: delet(); break; case 5: output(); break; case 0: exit(); } printf("\n\nfinish ,please choose again!"); } else printf("\n\nwrong, please choose again!"); } } void creat() { struct person one; long s1; printf("\nPlease input the address booke name .\n"); scanf("%s",filename); if((fp=fopen(filename,"w"))==NULL) { printf("\nCan't buide address book."); exit(); fprintf(fp,"%-15s%-20s%-30s%-30s","name","telephone","address","email"); } } void output() { struct person one; if((fp=fopen(filename,"r"))==NULL) { printf("\nCan't open address book.\n "); exit(); } printf("\n\n%38s\n","tong xun bu"); while(!feof(fp)) { fscanf(fp,"%s%s%s%s\n",one.name,one.tel,one.addr,one.email); printf("%-15s%-20s%-20s%-25s",one.name,one.tel,one.addr,one.email); } fclose(fp); } void append() { struct person one; if((fp=fopen(filename,"a"))==NULL) { printf("\nCan't open address book."); exit(); } printf("\nplease input name,telephonenumber,address and email.\n"); scanf("%s%s%s%s",one.name,one.tel,one.addr,one.email); fprintf(fp,"%-15s%-20s%-30s%-30s\n",one.name,one.tel,one.addr,one.email); fclose(fp); } void search() { int k=0; char namekey[15]; struct person one; printf("\nplease input name.\n"); scanf("%s",namekey); if((fp=fopen(filename,"rb"))==NULL) { printf("\nCan't open address book."); exit(); } while(!feof(fp)) { fscanf(fp,"%s%s%s%s\n",one.name,one.tel,one.addr,one.email); if(!strcmp(namekey,one.name)) { printf("\n\nHave found , the record is:"); printf("\n%-15s%-20s%-30s%-30s",one.name,one.tel,one.addr,one.email); k=1; } } if(!k) printf("\n\nsorry,don't have this person's record. n"); fclose(fp); } void modify() { int m,k=0; long offset; char namekey[8]; struct person one; printf("\nplease input name.\n"); scanf("%s",namekey); if((fp=fopen(filename,"r+"))==NULL) { printf("\nCan't open address book."); exit(); } while(!feof(fp)) { offset=ftell(fp); fscanf(fp,"%s%s%s%s\n",one.name,one.tel,one.addr,one.email); if(!strcmp(namekey,one.name)) { k=1; break; } } if(k) { printf("\nHave found the record is:"); printf("\n%-15s%-20s%-30s%-30s",one.name,one.tel,one.addr,one.email); printf("\nplease input name,telephonenumber,address and email."); scanf("%s%s%s%s",one.name,one.tel,one.addr,one.email); fseek(fp,offset,SEEK_SET); printf("%ld",ftell(fp)); /*？？*/ fprintf(fp,"%-10s%-20s%-30s%-50s\n",one.name,one.tel,one.addr,one.email); } else printf("\nsorry,don't have this person's record."); fclose(fp); } void delet() { int m,k=0,flag; long offset1,offset2; char namekey[8], valid[4]; struct person one; printf("\nplease input name.\n "); scanf("%s",namekey); if((fp=fopen(filename,"r+"))==NULL) { printf("\nCan't open address book."); exit(); } while(!feof(fp)) { offset1=ftell(fp); fscanf(fp,"%s%s%s%s\n",one.name,one.tel,one.addr,one.email); if(!strcmp(namekey,one.name)) { k=1; break; } } if(k) { printf("\nHave found the record is:"); printf("\n%-10s%-18s%-30s%-50s",one.name,one.tel,one.addr,one.email); printf("\n Make sure you want to delete press 1,cancel press 0."); scanf("%d",&m); if(m) { fseek(fp,offset1,SEEK_SET);/*？？？？*/ fprintf(fp,"%-15s%-20s%-30s%-30s\n","","","",""); } } else printf("\nsorry,don't have this person's record."); fclose(fp); }