cpp1.cpp

题目：设有一航班售票系统

#include<stdio.h> 
#include<string.h> 
#include<stdlib.h> 
#define OK 1 
#define TRUE 1 
#define FALSE 0 
#define ERROR 0 
#define OVERFLOW -2 
#define PR printf 
typedef int status; 
typedef struct airline 
{ 
char line_num[8];//航班号 
char plane_num[8];//飞机号 
char end_place[20];//目的的 
int total;//座位总数 
int left;//剩余座位 
struct airline *next;//下一个结点 
}airline; 
typedef struct customer 
{ 
char name[9];//顾客名 
char line_num[8];//航班号 
int seat_num;//座位号 
struct customer *next;//下一个结点 
}customer; 
airline *init_airline() 
{ //初始化链表 
airline *l; 
l=(airline*)malloc(sizeof(airline)); 
if(l==NULL) 
{ exit(0); 
} 
l->next=NULL; 
return l; 
} 
customer * init_customer(){//初始化链表 
customer *l; 
l=(customer*)malloc(sizeof(customer)); 
if(l==NULL){ 
exit(0); 
} 
l->next=NULL; 
return l; 
} 
status insert_airline(airline **p,char *line_num,char *plane_num,char *end_place,int total,int left){//airline链表插入操作 
airline *q; 
q=(airline*)malloc(sizeof(airline)); 
strcpy(q->line_num , line_num); 
strcpy(q->plane_num , plane_num); 
strcpy(q->end_place , end_place); 
q->total =total; 
q->left =left; 
q->next=NULL; 
(*p)->next=q; 
(*p)=(*p)->next; 
// PR("insert %d ,%dis succssed!\n",e,bl); 
return OK; 
} 
status insert_customer(customer **p,char *name,char *line_num,int seat){//customer链表插入操作 
customer *q; 
q=(customer*)malloc(sizeof(customer)); 
/* { PR("内存分配失败\n"); 
return OVERFLOW; }*/ 
strcpy(q->name , name); 
strcpy(q->line_num , line_num); 
q->seat_num =seat; 
q->next=NULL; 
(*p)->next=q; 
(*p)=(*p)->next; 
// PR("insert %d ,%dis succssed!\n",e,bl); 
return OK; 
} 
airline *modefy_airline(airline *l,char *line_num)//修改airline链表中的数据 
{ airline *p; 
p=l->next ; 
for(;p!=NULL;p=p->next ) 
{ if(strcmp(line_num,p->line_num )==0) 
{ p->left ++; 
// PR("modefy %s\n",p->line_num ); 
return l; 
} 
} 
PR("没有这个航班，无法完成修改任务！\n"); 
return 0; 
} 
status delete_airline(airline *h,char *line_num)//删除航班 
{ airline *p,*pr; 
pr=h; 
p=pr->next ; 
while(p!=NULL) 
{ if(strcmp(line_num,p->line_num )==0) 
{ pr->next =p->next ; 
PR("删除 %s 航班\n",p->line_num ); 
return OK; 
} 
pr=pr->next ; 
p=pr->next ; 
} 
PR("无此航班，无法删除！\n"); 
return ERROR; 
} 
status delete_customer(customer *h,char *line_num)//删除顾客 
{ customer *p,*pr; 
pr=h; 
p=pr->next ; 
while(p!=NULL) 
{ if(strcmp(line_num,p->line_num )==0) 
{ pr->next =p->next ; 
} 
pr=pr->next ; 
p=pr->next ; 
} 
// PR("无此航班，无法删除！\n"); 
return OK; 
} 
status delete_cus(customer *h,airline *l,char *name)//顾客退票 
{ customer *p,*pr; 
char line_num[8]; 
// qr=h; 
pr=h; 
p=pr->next ; 
// PR("开始删除\n"); 
while(p!=NULL) 
{ if(strcmp(name,p->name )==0) 
{ strcpy(line_num,p->line_num ); 
l=modefy_airline(l,line_num); 
pr->next =p->next ; 
PR("顾客 %s 退票成功!\n",p->name ); 
return OK; 
} 
pr=pr->next ; 
p=pr->next ; 
} 
PR("无此顾客，无法退票！\n"); 
return ERROR; 
} 
status save_airline(airline *l)//保存airline.dat 
{ FILE *fp_airline; 
char ch='#'; 
airline *p=l->next ; 
char filename[]="c:\airline.dat"; 
if((fp_airline=fopen(filename,"wb"))==NULL) 
{ printf("can not open file to write:%s\n",filename); 
return ERROR; 
} 
for(;p!=NULL;p=p->next ) 
{ // printf("%s,%s,%s,%d,%d\n",p->line_num ,p->plane_num ,p->end_place ,p->total ,p->left ); 
fprintf(fp_airline,"%s,%s,%s,%d,%d%c\n",p->line_num ,p->plane_num ,p->end_place ,p->total ,p->left ,ch); 
} 
fclose(fp_airline); 
return OK; 
} 
status save_customer(customer *l)//保存顾客信息 customer.dat 
{ FILE *fp_customer; 
char ch='#'; 
customer *p=l->next ; 
char filename[]="c:\customer.dat"; 
if((fp_customer=fopen(filename,"wb"))==NULL) 
{ printf("can not open file to write:%s\n",filename); 
return ERROR; 
} 
for(;p!=NULL;p=p->next ) 
{ // PR("%s,%s,%d\n",p->name ,p->line_num ,p->seat_num ); 
fprintf(fp_customer,"%s,%s,%d%c",p->name ,p->line_num ,p->seat_num ,ch); 
} 
fclose(fp_customer); 
return OK; 
} 
int changStrInt(char *ch)//把字符串转化为整型 
{ int a=1,b=0,c=0,i; 
for (i=strlen(ch)-1;i>=0;i--) 
{ if (ch[i]<58&&ch[i]>47) 
{ b=a*(ch[i]-48); 
a=a*10; 
c=c+b; 

} 
else 
{ PR("%c 不合法,无法将此字符串转化为整形!\n",ch[i]); 
return 0; 
} 
// printf("the c is %d\n",c); 
} 
return c; 
} 
status insert_air(airline *l,char *line_num,char *plane_num,char *end_place,int total,int left){//airline链表插入操作 
airline *q; 
q=(airline*)malloc(sizeof(airline)); 
strcpy(q->line_num , line_num); 
strcpy(q->plane_num , plane_num); 
strcpy(q->end_place , end_place); 
q->total =total; 
q->left =left; 
q->next=l->next ; 
l->next=q; 
// PR("insert %d ,%dis succssed!\n",e,bl); 
return OK; 
} 
status insert_cus(customer *l,char *name,char *line_num,int seat){//customer链表插入操作 
customer *q; 
q=(customer*)malloc(sizeof(customer)); 
strcpy(q->name , name); 
strcpy(q->line_num , line_num); 
q->seat_num =seat; 
q->next=l->next ; 
l->next=q; 
return OK; 
} 
status load_airline(airline *l) 
{ FILE *fp_airline; 
int flag=0,i=0; 
char ch; 
char line_num[8];//航班号 
char plane_num[8];//飞机号 
char end_place[20];//目的的 
char total_str[5]; 
char left_str[5]; 
int total;//座位总数 
int left;//剩余座位 
// airline *p=l; 
char filename[]="c:\airline.dat"; 
if((fp_airline=fopen(filename,"rb"))==NULL) 
{ printf("can not open file to load:%s\n",filename); 
return ERROR; 
} 
while(!feof(fp_airline)) 
{ ch=fgetc(fp_airline); 
if(ch!='#') 
{ if(flag==0&&ch!=',') 
{ line_num[i]=ch; 
i++; 
} 
else if(flag==1&&ch!=',') 
{ plane_num[i]=ch; 
i++; 
} 
else if(flag==2&&ch!=',') 
{ end_place[i]=ch; 
i++; 
} 
else if(flag==3&&ch!=',') 
{ total_str[i]=ch; 
i++; 
} 
else if(flag==4&&ch!=',') 
{ left_str[i]=ch; 
i++; 
} 
else if (ch==',') 
{ flag++; 
i=0; 
} 
/* else 
{ PR("错误\n"); 
return ERROR; 
}*/ 
} 
else 
{ flag=0; 
i=0; 
total=changStrInt(total_str); 
left=changStrInt(left_str); 
PR("%8s%8s%8s%9d%9d\n",line_num ,plane_num ,end_place ,total ,left ); 
insert_air(l,line_num,plane_num,end_place,total,left); 
} 
} 
fclose(fp_airline); 
return OK; 
} 
status load_customer(customer *l) 
{ FILE *fp_customer; 
int flag=0,i=0; 
char ch; 
char name[9]; 
char line_num[8];//航班号 
char seat_num_str[5]; 
int seat_num;//座位 
// customer *p=*l; 
char filename[50]="c:\customer.dat"; 
if((fp_customer=fopen(filename,"rb"))==NULL) 
{ printf("can not open file to load:%s\n",filename); 
return ERROR; 
} 
while(!feof(fp_customer)) 
{ ch=fgetc(fp_customer); 
printf("%c\n",ch); 
if(ch!='#') 
{ if(flag==0&&ch!=',') 
{ name[i]=ch; 
i++; 
} 
else if(flag==1&&ch!=',') 
{ line_num[i]=ch; 
i++; 
} 
else if(flag==2&&ch!=',') 
{ seat_num_str[i]=ch; 
i++; 
} 
else if (ch==',') 
{ flag++; 
i=0; 
} 
else 
{ PR("错误\n"); 
return ERROR; 
} 
} 
else 
{ flag=0; 
seat_num=changStrInt(seat_num_str); 
PR("%10s %10s %d\n",name ,line_num ,seat_num ); 
insert_cus(l,name,line_num,seat_num); 
// p=p->next ; 
} 
} 
fclose(fp_customer); 
return OK; 
} 
status creat_airline(airline **l)//创建airline单链表 
{ airline *p=*l; 
int i=0; 
char *line_num[3]={"bjnc01","bjsh02","shgz03"}; 
char *plane_num[3]={"plane1","plane2","plane3"}; 
char *end_place[3]={"nc","sh","gz"}; 
int total[3]={100,100,100}; 
int left[3]={51,50,78}; 
for (i=0;i<3;i++){ 
insert_airline(&p,line_num[i],plane_num[i],end_place[i],total[i],left[i]); 
} 
return OK; 
} 
status creat_customer(customer **l)////创建customer单链表 
{ customer *p=*l; 
int i=0; 
char *name[3]={"ouyangj0","yhl","fs"}; 
char *line_num[3]={"bjnc01","bjsh02","shgz03"}; 
int seat_num[3]={1,5,10}; 
for (i=0;i<3;i++){ 
insert_customer(&p,name[i],line_num[i],seat_num[i]); 
} 
return OK; 
} 
status increase_air(airline *l,char *line_num,char *plane_num,char *end_place,int total)//增加航线 
{ airline *p=l->next ; 
for(;p->next !=NULL;p=p->next){} 
insert_airline(&p,line_num,plane_num,end_place,total,total); 
PR("增加航班 %s 成功!\n",line_num); 
return OK; 
} 
status book(airline *l,char *line_num,customer *c,char *name)//订票 
{ airline *p=l; 
customer *q=c->next ; 
p=l->next ; 
for(;q->next !=NULL;q=q->next){} 
// PR("%s\n",q->name ); 
for(;p!=NULL;p=p->next ) 
{ if(strcmp(line_num,p->line_num )==0) 
{ if(p->left >0) 
{ PR("恭喜您!订票成功!\n"); 
PR("你的座位号是: %d\n",(p->total -p->left +1)); 
insert_customer(&q,name,line_num,p->total -p->left +1); 
p->left --; 
return OK; 
} 
else PR("对不起,座位已满!\n"); 
return 0; 
} 
} 
PR("对不起,没有这个航班号!\n"); 
return ERROR; 
} 
status print_airline(airline *l)//打印航线信息 
{ airline *p=l->next ; 
for(;p!=NULL;p=p->next ) 
{ PR("%8s%8s%8s%9d%9d\n",p->line_num ,p->plane_num ,p->end_place ,p->total ,p->left ); 
} 
return OK; 
} 
status print_customer(customer *l)//打印顾客信息 
{ 
customer *p=l->next ; 
for(;p!=NULL;p=p->next ) 
{ PR("%10s %10s %d\n",p->name ,p->line_num ,p->seat_num ); 
} 
return OK; 
} 
void main() 
{ char choice,choice2,name[9],line_num[8],password[9],plane_num[8],end_place[9]; 
char pass[9]="19851107",re_pass_1[9],re_pass_2[9]; 
int t=1,tt=1,total; 
airline *air=init_airline(); 
customer *cus=init_customer(); 
PR(" 成型053班 C语言课程设计 (一)\n"); 
PR(" 航空订票系统\n"); 
PR(" 成员:刘冬冬\n"); 
creat_airline(&air); 
creat_customer(&cus); 
// save_airline(air); 
// save_customer(cus); 
while(t==1) 
{ PR("*----------------------------*\n"); 
PR("*--航空订票系统选择菜单------*\n"); 
PR("* 订票-------0 *\n"); 
PR("* 退票-------1 *\n"); 
PR("* 查询-------2 *\n"); 
PR("* 修改航线---3 *\n"); 
PR("* 读入文件---4 *\n"); 
PR("* 退出-------5 *\n"); 
PR("*----------------------------*\n"); 
PR("请选择: "); 
choice = getch(); 
PR("%c\n",choice); 
if(choice=='0') 
{ PR("请输入你要订的航班号: "); 
scanf( "%s",line_num); 
PR("请输入你的姓名: "); 
scanf( "%s",name); 
book(air,line_num,cus,name); 
save_airline(air); 
save_customer(cus); 
} 
else if(choice=='1') 
{ PR("\n请输入你的姓名: "); 
scanf( "%s",name); 
delete_cus(cus,air,name); 
save_airline(air); 
save_customer(cus); 
} 
else if(choice=='2') 
{ PR("\n 航班号 飞机号 目的地 总票数 余票数\n"); 
print_airline(air); 
PR(" 姓名 航班号 座位号\n"); 
print_customer(cus); 
} 
else if(choice=='3') 
{ tt=1; 
PR("请输入密码: "); 
scanf("%s",password); 
if(strcmp(password,pass)==0) 
{ while (tt==1){ 
PR("\n*------------------------------*\n"); 
PR("*-------航线信息修改:----------*\n"); 
PR("* 增加航班号-----'0' *\n"); 
PR("* 删除航班号-----'1' *\n"); 
PR("* 修改密码-------'2' *\n"); 
PR("* 查询航线信息---'3' *\n"); 
PR("* 退出航线修改---'4' *\n"); 
PR("*------------------------------*\n"); 
PR("请选择: "); 

choice2=getch(); 
PR("%c\n",choice2); 
if(choice2=='0') 
{ PR("请输入你要增加的航班号: "); 
scanf("%s",line_num); 
PR("请输入飞机号: "); 
scanf("%s",plane_num); 
PR("请输入目的地: "); 
scanf("%s",end_place); 
PR("请输入座位总数: "); 
scanf("%d",&total); 
increase_air(air,line_num,plane_num,end_place,total); 
save_airline(air); 
save_customer(cus); 
} 
else if (choice2=='1') 
{ PR("请输入你要删除的航班号: "); 
scanf("%s",line_num); 
delete_airline(air,line_num); 
delete_customer(cus,line_num); 
save_airline(air); 
save_customer(cus); 
} 
else if(choice2=='2') 
{ PR("注意:密码不能超过8位!\n"); 
PR("请输入新密码："); 
scanf("%s",re_pass_1); 
PR("请再输入一次: "); 
scanf("%s",re_pass_2); 
if(strcmp(re_pass_1,re_pass_2)==0) 
{ strcpy(pass,re_pass_1); 
PR("密码修改成功!请记住.\n"); 
} 
else { PR("你两次输入的密码不一致!\n"); 
} 
} 
else if(choice2=='3') 
{ PR("\n 航班号 飞机号 目的地 总票数 余票数\n"); 
print_airline(air); 
} 
else if(choice2=='4') 
{ tt=0; 
} 
else { 
PR("你的输入有误\n"); 
tt=0; 
} 
}//end while 
}//end if 
else { 
PR("对不起!你输入的密码不正确!\n"); 
} 
}//end else if 修改 
else if(choice=='4') 
{ load_airline(air); 
load_customer(cus); 
} 
else if(choice=='5') 
{ PR("再见!"); 
t=0; 
} 
else 
{ PR("你的输入有误\n"); 
} 
} 
getch(); 
}