Chào các anh ạ, hiện e có bài tập và đã code thế này, nhưng khi nhập 2 và 3 để hiện danh sách thì lại bị lỗi không hiển thị ạ, xin các anh giúp em chỉ ra lỗi sai để em học hỏi ạ. Em xin cảm ơn.
đây là code ạ
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<string.h>
#define MAX 10
struct city_st;
void hienthiDSSS(struct city_st*, int n);
void hienthitheoCot();
struct city_st
{
char city_nm[30];
char country[30];
int year,Stt;
};
typedef struct city_st cs;
void NhapN(city_st fc[],int n )
{
for(int i=0;i<n;i++)
{
printf("\n\tNhap thong tin thanh pho thu:%d",i+1);
printf("\nNhap so thu tu cho thanh pho thu %d :",i+1);
scanf("%d",&fc[i].Stt);
printf("\n\tNhap ten thanh pho:");
fflush(stdin);
gets(fc[i].city_nm);
printf("\n\tNhap quoc gia :");
fflush(stdin);
gets(fc[i].country);
printf("\n\tNhap nam thanh lap :");
scanf("%d",&fc[i].year);
}
}
void XuatN(city_st fc[],int n)
{
for(int i=0;i<n;i++)
{
printf("Thong tin thanh pho thu %d :\n",i++);
printf("So thu tu cua thanh pho la %d\n",fc[i].Stt);
printf("Ten thanh pho :%s\n",fc[i].city_nm);
printf("Quoc gia :%s\n",fc[i].country);
printf("Nam :%d\n",fc[i].year);
}
}
void hienthithongtinthanhpho(struct city_st cs)
{
printf("||%-20d ||%-20s ||%-20s ||%-20d \n",cs.Stt,cs.country,cs.year);
}
void sapxeptheoten(struct city_st *fc,int n)
{
int i,j;
for(i=0;i<n-1;i++)
{
for(j=n-1;j>i;j--)
{
if(strcmp(fc[j].city_nm,fc[j-1].city_nm)>0)
{
struct city_st a=fc[j];
fc[j]=fc[j-1];
fc[j-1]=a;
}
}
}
}
void timtheoquocgia(struct city_st *fc,int n)
{
char city_nm[30];
printf("Nhap country :");
fflush(stdin);
gets(city_nm);
hienthitheoCot();
int i,timS=0;
for(i=0;i<n;i++)
{
if(strcmp(city_nm,fc[i].country)==0)
{
hienthithongtinthanhpho(fc[i]);
timS =1;
}
}
if(timS ==0)
{
printf("\n Khong co quoc gia %s trong danh sach !",city_nm);
}
}
void timtheonam(struct city_st *fc,int n)
{
int nam;
printf("\nNhap nam :");
scanf("%d",&nam);
hienthitheoCot();
int timS=0;
for(int i=0;i<n;i++)
{
if(nam == fc[i].year)
{
hienthithongtinthanhpho(fc[i]);
timS=1;
}
}
if(timS ==0)
{
printf("\n Vui long nhap nam !");
}
}
void hienthitheoCot()
{
printf("----------------------------------"
"--------------------\n");
printf("||%-20s ||%20s ||%20s ||%-30s\n","Stt","city_nm","country","year");
}
void hienthiDSSS(struct city_st *fc,int n)
{
hienthitheoCot();
for(int i=0;i<n;i++)
{
hienthithongtinthanhpho(fc[i]);
}
printf("-------------------------""----------------------------\n");
}
void ghiFile(struct city_st* fc,int n)
{
getchar();
char fName[27];
printf("Nhap ten file : ");
gets(fName);
FILE* fOut=fopen(fName, "a");
for(int i=0;i<n;i++)
{
struct city_st cs=fc[i];
fprintf(fOut,"%-10d %-10s %-20s %-20d\n",cs.Stt,cs.city_nm,cs.country,cs.year);
}
fclose(fOut);
}
void docFile(struct city_st* fc,int* n)
{
FILE*fOut =fopen("city.txt","r");
int i=0;
if(fOut)
{
for(;;)
{
struct city_st cs;
fscanf(fOut,"%10d %10s %20s %20d\n",&cs.Stt,cs.city_nm,cs.country,&cs.year);
fc[i++] = cs;
if(feof(fOut))
{
break;
}
}
}
fclose(fOut);
*n=i;
}
int main(){
int n,key;
struct city_st fc[MAX];
bool daNhap = false;
do{
printf("\nNhap so luong thanh pho ");
scanf("%d",&n);
}while(n<=0);
while(true){
system("cls");
printf(" ------------------------------------------------------\n");
printf(" | Chuong Trinh Quan Li Thu Vien |\n");
printf(" | 1. Nhap du lieu cua tung thanh pho. |\n");
printf(" | 2. Hien thi thong tin cac thanh pho. |\n");
printf(" | 3. Sap xep sach theo thu tu Z->A. |\n");
printf(" | 4.Tim thanh pho theo quoc gia. |\n");
printf(" | 5. Tim thanh pho theo nam. |\n");
printf(" | 6. Ghi vao tap tin nhi phan book.txt. |\n");
printf(" | 0. Thoat chuong trinh. |\n");
printf(" ------------------------------------------------------\n");
printf(" ------------------- vui long chon !------------------------\n");
scanf("%d",&key);
switch(key){
case 1:
printf("Ban da chon nhap thong tin cho thanh pho\n");
NhapN(fc,n);
printf("Ban da nhap thanh cong !\n");
daNhap = true;
printf("Bam bat ki phim nao de tiep tuc !");
getch();
break;
case 2:
if (daNhap){
printf("Ban da chon hien thi thong tin thanh pho! \n");
hienthiDSSS(fc,n);
}
else {
printf("Ban can phai nhap thong tin thanh pho truoc! \n");
}
printf("Bam bat ki phim nao de tiep tuc\n");
getch();
break;
case 3:
if(daNhap){
printf("Ban da chon sap xep theo thu tu Z -> A \n");
printf("Thong tin thanh pho sau khi sap xep :\n");
sapxeptheoten(fc,n);
hienthiDSSS(fc,n);
}
else{
printf("Ban phai nhap thong tin thanh pho truoc!\n");
}
printf("Bam bat ki phim nao de tiep tuc!");
getch();
break;
case 4:
if(daNhap){
printf("Ban da chon tim thanh pho theo theo quoc gia !\n");
timtheoquocgia(fc,n);
}
else{
printf("Ban phai nhap thong tin cho thanh pho truoc!\n");
}
printf("Bam bat ki phim nao de tiep tuc\n");
getch();
break;
case 5:
if(daNhap){
printf("Ban da chon tim thanh pho theo nam !\n");
timtheonam(fc,n);
}
else{
printf("Ban phai nhap thong tin cho thanh pho truoc!\n");
}
printf("Bam bat ki phim nao de tiep tuc\n");
getch();
break;
case 6:
if(daNhap){
printf("Ban da chon ghi vao tap tin nhi phan city.txt !\n");
ghiFile(fc,n);
}
else{
printf("Ban phai nhap thong tin cho thanh pho truoc!\n");
}
printf("Bam bat ki phim nao de tiep tuc\n");
getch();
break;
case 0:
printf("May ban da bi loi !\n");
getch();
return 0;
default :
printf("Khong co chuc nang nay\n");
printf("Bam phim bat ki de tiep tuc!");
getch();
break;
}
}
}
83% thành viên diễn đàn không hỏi bài tập, còn bạn thì sao?