飞机订票系统 一直死循环，求大神解决
#include<stdio.h>#include<string.h>
#include<stdlib.h>
#define N 1000
struct air
{
int num;
char start[20];
char over[20];
char time[10];
int count;
}s[N];
int i;
int m=0;/*全局变量，计算输入数据数*/
#define PRINT "%d%12s%12s%10s%12d\n",s[i].num,s[i].start,s[i].over,s[i].time,s[i].count
void input(); /*输入信息*/
void print(); /*输出信息*/
void save(); /*保存信息*/
void read(); /*读取信息*/
void search(); /*查找信息*/
void delete(); /*删除信息*/
void buy(); /*订票信息*/
void refund(); /*退票信息*/
void modify(); /*修改信息*/
void main()
{
int j;
printf(" ★ *** reserve ticket system *** ★");
printf("
****************************************************************************");
printf(" 1.Enter plane information 2.Scan plane information \n
");
printf(" 3.Modify plane information 4.Search plane information \n
");
printf(" 5.Delete plane information 6.Buy ticket \n
");
printf(" 7.Refund ticket 0.Exit \n ");
printf(" ****************************************************************************\n");
printf("Please input number 0-7and press ENTER.\n");
do{
scanf("%d",&j);
}while(j<0||j>7);
switch(j)
{
case 1:input(); break;
case 2:print(); break;
case 3:modify(); break;
case 4:search(); break;
case 5:delete(); break;
case 6:buy(); break;
case 7:refund(); break;
case 0:; break;
}
printf("Thank you,goodbye!");
}
void input()
{
int y;
printf(" Please input plane informations:\n");
printf("*****************************************************************************\n");
for(i=0;i<N;i++)
{
printf("Please input the plane number:\n");
scanf("%d",&s[i].num);
printf("Please input the upcity:\n");
scanf("%s",&s[i].start);
printf("Please input the downcity:\n");
scanf("%s",&s[i].over);
printf("Please input the uptime:\n");
scanf("%s",&s[i].time);
printf("How many ticket you want:\n");
scanf("%d",&s[i].count);
m++;/*统计输入信息个数*/
printf("the %dth information have completed,do you want to continue input the next
information?\n",m);
printf("YES.....please press 1 and ENTER.\n");
printf("NO......please press 0 and ENTER.\n");
scanf("%d",&y);
if(y==0)
{
save();
print();
break;
}
}
}
void save()
{
FILE *fp,*fp1;
if((fp=fopen("C:\\sun.txt","wb"))==NULL)/*打开文件并判断是否出错*/
{
printf("Set up file fail!\n");
return;
}
if((fp1=fopen("C:\\ru.txt","wb"))==NULL)
{
printf("Set up file fail,please press any key quit.\n");
getchar();
return;
}
for(i=0;i<m;i++)
if(fwrite(&s[i],sizeof(struct air),1,fp)==0)/*向文件写入数据，并判断是否出错*/
printf("WRONG!\n");
fprintf(fp1,"%d",m);
fclose(fp);
fclose(fp1);
}
void read()
{
FILE *fp,*fp1;
if((fp=fopen("C:\\sun.txt","rb"))==NULL)
{
printf("Wrong,please check up the file fp,press any key return.\n");
getchar();
}
if((fp1=fopen("C:\\ru.txt","rb"))==NULL)
{
printf("Set up file fail!\n");
getchar();
return;
}
fscanf(fp1,"%d",&m);
fclose(fp1);
for(i=0;i<m;i++)
{
fread(&s[i],sizeof(struct air),1,fp);/*从文件中读取信息*/
}
fclose(fp);
}
void print()
{
char w[10];
read();
printf("Plane_number\t\tupcity\t\tdowncity\t\ttime\t\tthe_number_of_ticket\n");
for(i=0;i<m;i++)
{
printf("PRINT\n");
}
printf("Please press any key+ENTER to return last menu:\n");
scanf("%s",&w);
}
void search()
{
char name1[20];
char name2[20];
char ii[10];
int n,no;
do
{
printf("Please choice the way to search:\n");/*打印查询方式菜单*/
printf("1......by plane number\n");
printf("2......by downcity\n");
printf("3......by upcity and downcity\n");
printf("0......return\n");
printf("input number 0-3：\n");
printf("press else key to return main menu:\n");
scanf("%d",&n);
if(n==0)
break;
switch(n)
{
case 1:
printf("Please input plane number:\n");
scanf("%d",&no);
break;
case 2:
printf("Please input downcity:\n");
printf("%s",&name2);
break;
case 3:
printf("Please input upcity：\n");
scanf("%s",&name1);
printf("Please input downcity：\n");
scanf("%s",&name2);
break;
}
read();
for(i=0;i<m;i++)
{
if(strcmp(s[i].over,name1)==0||strcmp(s[i].over,name2)==0)
{
printf("Search plane informotion accomplish.");
printf("plane_numeber\t\tupcity\t\tdowncity\t\ttime\t\tthe_number_of_ticket\n");
printf("PRINT\n");
break;
}
if(s[i].num==no)/* 按航班号判断输出条件 */
{
printf("Search plane informotion accomplish.");
printf("plane_numeber\t\tupcity\t\tdowncity\t\ttime\t\tthe_number_of_ticket\n");
printf("PRINT\n");
break;
}
}
no=0;/*将航班号赋值为0*/
printf("Search finish：");
printf("Do you want to continue?Please input yes or no + ENTER.");
scanf("%s",&ii);
}while(strcmp(ii,"yes")==0);
}
void delete()
{
char name1[20];
char name2[20];
char ii[10];
int no,n;
do
{
printf("Please choice the way of delete：");
printf("1......by plane number");
printf("2......by upcity and downcity");
printf("0......return");
printf("please input number 0-2 + ENTER：");
scanf("%d",&n);
if(n==0)
break;
switch(n)
{
case 1:
printf("Please input plane number：");
scanf("%d",&no);
read();
break;
case 2:
printf("Please input upcity：");
scanf("%s",&name1);
printf("Please input downcity：");
scanf("%s",&name2);
read();
break;
}
for(i=0;i<m;i++)
{
if(s[i].num==no||strcmp(s[i].start,name1)==0&&strcmp(s[i].over,name2)==0)/*判断输入信息是
否存在 */
{
s[i]=s[m-1];
m--;
}
}
printf("search finish.");
printf("Delete the plane information,are you sure?");
printf("Please input yes or no + ENTER.");
scanf("%s",&ii);
save();
if(!strcmp(ii,"yes"))
printf("Please press any key to return the last menu.");
break;
}while(n==1||n==2||n==0);
}
void buy()
{
int n;
char a[10];
do
{
search();
printf("How many tickets you want?Please input.");
scanf("%D",&n);
if(n<0)
{
printf("Please input number again.");
break;
}
if(s[i].count!=0&&s[i].count>=n)/* 判断是否出错 */
{
s[i].count=s[i].count-n;
save();
printf("Buy ticket succeed.");
break;
}
if(s[i].count<n)/* 判断是否出错 */
{
printf("Please a useful number you want ticket.");
break;
}
printf("Are you continue? Please input yes or no +ENTER");
scanf("%s",&a);
}while(!strcmp(a,"yes"));
}
void refund()
{
int n;
char a[10];
do
{
search();
printf("How many tickets you want to refund?");
scanf("%d",&n);
if(n<0)
printf("Please input a useful number again:");
scanf("%d",&n);
s[i].count=s[i].count+n;
save();
printf("Refund succeed.");
printf("Are you continue?Please input yes or no + ENTER.");
scanf("%s",&a);
}while(!strcmp(a,"yes"));
getchar();
}
void modify()
{
struct modify
{
int no;
char name1[20];
char name2[20];
char time[20];
int count;
}mo[1];
char j[10];
int n;
read();
do
{
printf("Please choice the way of modify.\n");
printf("1.......by plane number");
printf("2.......by upcity and downcity");
printf("Please input 1 or 2 + ENTER.\n");
scanf("%d",&n);
switch(n)
{
case 1:
printf("Please input plane number:\n");
scanf("%s",&mo[0].no);
break;
case 2:
printf("Please input upcity:\n");
scanf("%s",&mo[0].name1);
printf("Please input downcity:\n");
scanf("%s",&mo[0].name2);
break;
}
for(i=0;i<m;i++)
{
if(strcmp(s[i].over,mo[0].name1)==0&&strcmp(s[i].over,mo[0].name2)==0)/* 判断输出条件 */
{
printf("plane_numeber\t\tupcity\t\tdowncity\t\ttime\t\tthe_number_of_ticket\n");
printf("PRINT");
break;
}
if(s[i].num==mo[0].no)/* 判断输出条件 */
{
printf("plane_numeber\t\tupcity\t\tdowncity\t\ttime\t\tthe_number_of_ticket\n");
printf("PRINT");
break;
}
}
mo[0].no=0; /* 将结构体中的号为零 */
printf("Please input new plane_number,upcity,downcity,time and the number of_ticket:\n");
scanf("%s,%s,%s,%s,%s",&mo[0].no,&mo[0].name1,&mo[0].name2,&mo[0].time,&mo[0].count);
s[i].num=mo[0].no;/* 替换航班号 */
strcpy(s[i].start,mo[0].name1);/* 替换其始站 */ /*拷贝字符串*/
strcpy(s[i].over,mo[0].name2);/* 替换终点站 */
strcpy(s[i].time,mo[0].time);/* 替换时间 */
s[i].count=mo[0].count;/* 替换机票数 */
save();
printf("Modify succeed！Do you want to continue？Please press yes or no + ENTER.\n");
scanf("%s",&j);
}while(strcmp(j,"yes")==0);
}
一直死循环 求大神帮忙解决
