c语言定订票系统

代码部分： #include #include #include #include #include #define

HEADER1

\"

number

-------------------------------BOOK

|start

city|reach

TICKET----------------------------------\\n\"

#define HEADER2 \" | city|takeofftime|receivetime|price|ticketnumber|\\n\"

#define HEADER3 \" |----------|----------|----------|-----------|-----------|-----|------------|\\n\" #define FORMAT \" |%-10s|%-10s|%-10s|%-10s |%-10s |%5d| %5d |\\n\" #define

DATA

p->data.num,p->data.startcity,p->data.reachcity,p->data.takeofftime,p->data.receivetime,p->data.price,p->data.ticketnum

int saveflag=0 ;

/*定义存储火车信息的结构体*/ struct train

{

char num[10];/*列车号*/ char startcity[10];/*出发城市*/ char reachcity[10];/*目的城市*/ char takeofftime[10];/*发车时间*/ char receivetime[10];/*到达时间*/ int price;/*票价*/ int ticketnum ;/*票数*/ };

/*订票人的信息*/ struct man {

char num[10];/*ID*/ char name[10];/*姓名*/ int bookNum ;/*订的票数*/ };

– 1 –

/*定义火车信息链表的结点结构*/ typedef struct node {

struct train data ; struct node * next ; }Node,*Link ;

/*定义订票人链表的结点结构*/ typedef struct Man {

struct man data ; struct Man *next ; }book,*bookLink ; /* 初始界面*/ void menu() {

puts(\"\\n\\n\");

puts(\"\\|------------------------------------------------------|\");

puts(\"\\| Booking Tickets puts(\"\\|------------------------------------------------------|\");

puts(\"\\| 0:quit the system puts(\"\\| 1:Insert a train information puts(\"\\| 2:Search a train information puts(\"\\| 3:Book a train ticket puts(\"\\| 4:Modify the train information puts(\"\\| 5:Show the train information puts(\"\\| 6:save information to file puts(\"\\|------------------------------------------------------|\"); }

/*添加一个火车信息*/ void Traininfo(Link linkhead) {

struct node *p,*r,*s ; char num[10]; r = linkhead ;

s = linkhead->next ; while(r->next!=NULL) r=r->next ; while(1)

{

printf(\"please input the number of the train(0-return)\");

– 2 –

|\"); |\"); |\"); |\"); |\"); |\"); |\"); |\"); scanf(\"%s\ if(strcmp(num,\"0\")==0) break ;

/*判断是否已经存在*/ while(s) {

if(strcmp(s->data.num,num)==0) {

printf(\"the train '%s'is existing!\\n\ return ; }

s = s->next ; }

p = (struct node*)malloc(sizeof(struct node)); strcpy(p->data.num,num);/*输入车号*/ printf(\"Input the city where the train will start:\"); scanf(\"%s\输入出发城市*/ printf(\"Input the city where the train will reach:\"); scanf(\"%s\输入到站城市*/ printf(\"Input the time which the train take off:\"); scanf(\"%s\输入出发时间*/ printf(\"Input the time which the train receive:\"); scanf(\"%s\输入到站时间*/ printf(\"Input the price of ticket:\");

scanf(\"%d\输入火车票价*/ printf(\"Input the number of booked tickets:\"); scanf(\"%d\输入预定票数*/ p->next=NULL ;

r->next=p ;/*插入到链表中*/ r=p ; saveflag = 1 ;

} }

/*打印火车票信息*/

void printheader() /*格式化输出表头*/ {

printf(HEADER1); printf(HEADER2); printf(HEADER3); }

– 3 –

void printdata(Node *q) /*格式化输出表中数据*/ { Node* p;

p=q;

printf(FORMAT,DATA); }

/*查询火车信息*/ void searchtrain(Link l) {

Node *s[10],*r; int sel,k,i=0 ; char str1[5],str2[10]; if(!l->next) {

printf(\"There is not any record !\");

return ; }

printf(\"Choose the way:\\n1:according to the number of train;\\n2:according to the city:\\n\");

scanf(\"%d\输入选择的序号*/

if(sel==1) {

printf(\"Input the the number of train:\"); scanf(\"%s\ r=l->next;

while(r!=NULL)

if(strcmp(r->data.num,str1)==0)/*检索是否有与输入的车号相匹配的*/ {

s[i]=r;

i++; break;

} else

r=r->next; }

else if(sel==2)

{

printf(\"Input the city you want to go:\");

– 4 –

scanf(\"%s\ r=l->next;

while(r!=NULL)

if(strcmp(r->data.reachcity,str2)==0)/*检索是否有与输入的城市相匹配的火车*/ {

s[i]=r; i++;

r=r->next;

} else

r=r->next; }

if(i==0) printf(\"can not find!\"); else {

printheader();

for(k=0;k/*订票子模块*/

void Bookticket(Link l,bookLink k) {

Node *r[10],*p ;

char ch[2],tnum[10],str[10],str1[10],str2[10]; book *q,*h ;

int i=0,t=0,flag=0,dnum; q=k ;

while(q->next!=NULL)

q=q->next ;

printf(\"Input the city you want to go: \"); scanf(\"%s\输入要到达的城市*/ p=l->next ; while(p!=NULL)

{

if(strcmp(p->data.reachcity,str)==0)

{

r[i]=p ;/*将满足条件的记录存到数组r中*/

– 5 –

i++; }

p=p->next ;

}

printf(\"\\n\\nthe number of record have %d\\n\ printheader(); for(t=0;tif(i==0)

printf(\"\\nSorry!Can't find the train for you!\\n\"); else

{

printf(\"\\ndo you want to book it?\\n\");

scanf(\"%s\ if(strcmp(ch,\"Y\")==0||strcmp(ch,\"y\")==0)/*判断是否订票*/ {

h=(book*)malloc(sizeof(book)); printf(\"Input your name: \"); scanf(\"%s\

strcpy(h->data.name,str1); printf(\"Input your id: \"); scanf(\"%s\

strcpy(h->data.num,str2); printf(\"please input the number of the train:\"); scanf(\"%s\

– 6 –

for(t=0;tif(strcmp(r[t]->data.num,tnum)==0)

{

if(r[t]->data.ticketnum<1)/*判断剩余的供订票的票数是否为0*/ {

printf(\"sorry,no ticket!\"); sleep(2); return;

}

printf(\"remain %d tickets\\n\ break; } if(flag==0) {

flag=1;

printf(\"input error\"); sleep(2);

return;

}

printf(\"Input your bookNum: \");

scanf(\"%d\

r[t]->data.ticketnum=r[t]->data.ticketnum-dnum;/*定票成功则可供订的票数相应减少*/

h->data.bookNum=dnum ; h->next=NULL ;

q->next=h ;

q=h ;

printf(\"\\nLucky!you have booked a ticket!\"); getch(); saveflag=1 ; } }

}

/*修改火车信息*/ void Modify(Link l) {

Node *p ; char tnum[10],ch ; p=l->next; if(!p)

{

printf(\"\\nthere isn't record for you to modify!\\n\"); return ; } else {

printf(\"\\nDo you want to modify it?(y/n)\\n\"); getchar(); scanf(\"%c\ if(ch=='y'||ch=='Y') {

printf(\"\\nInput the number of the train:\"); scanf(\"%s\ while(p!=NULL)

if(strcmp(p->data.num,tnum)==0)/*查找与输入的车号相匹配的记录*/

– 7 –

break;

else

p=p->next; if(p) {

printf(\"Input new number of train:\"); scanf(\"%s\ printf(\"Input new city the train will start:\");

scanf(\"%s\

printf(\"Input new city the train will reach:\"); scanf(\"%s\ printf(\"Input new time the train take off\"); scanf(\"%s\ printf(\"Input new time the train reach:\"); scanf(\"%s\

printf(\"Input new price of the ticket::\"); scanf(\"%d\

printf(\"Input new number of people who have booked ticket:\"); scanf(\"%d\

printf(\"\\nmodifying record is sucessful!\\n\"); saveflag=1 ; }

else

printf(\"\can't find the record!\"); }

} }

void showtrain(Link l)/*自定义函数显示列车信息*/ {

Node *p; p=l->next; printheader();

if(l->next==NULL) printf(\"no records!\"); else

while(p!=NULL) { }

– 8 –

printdata(p); p=p->next;

}

/*保存火车信息*/ void SaveTrainInfo(Link l) {

FILE*fp ; Node*p ;

int count=0,flag=1 ;

fp=fopen(\"f:\\\rain.txt\ if(fp==NULL) {

printf(\"the file can't be opened!\"); return ; }

p=l->next ; while(p) {

if(fwrite(p,sizeof(Node),1,fp)==1) {

p=p->next ; count++; } else {

flag=0 ; break ; } } if(flag)

{

printf(\" saved %d train records\\n\ saveflag=0 ; }

fclose(fp); }

/*保存订票人的信息*/ void SaveBookInfo(bookLink k) {

FILE*fp ;

book *p ;

int count=0,flag=1 ;

– 9 –

fp=fopen(\"f:\\\\man.txt\ if(fp==NULL) {

printf(\"the file can't be opened!\"); return ; }

p=k->next ; while(p)

{ if(fwrite(p,sizeof(book),1,fp)==1) {

p=p->next ; count++; } else {

flag=0 ; break ; } } if(flag) {

printf(\" saved %d booking records\\n\ saveflag=0 ; } fclose(fp); } main() {

FILE*fp1,*fp2 ; Node *p,*r ; char ch1,ch2 ; Link l ;

bookLink k ; book *t,*h ;

int sel ;

l=(Node*)malloc(sizeof(Node)); l->next=NULL ; r=l ;

– 10 –

k=(book*)malloc(sizeof(book)); k->next=NULL ;

h=k ;

fp1=fopen(\"f:\\\rain.txt\打开存储车票信息的文件*/ if((fp1==NULL)) {

printf(\"can't open the file!\"); return 0 ; }

while(!feof(fp1)) {

p=(Node*)malloc(sizeof(Node));

if(fread(p,sizeof(Node),1,fp1)==1)/*从指定磁盘文件读取记录*/ {

p->next=NULL ;

r->next=p ;/*构造链表*/ r=p ; } }

fclose(fp1);

fp2=fopen(\"f:\\\\man.txt\ if((fp2==NULL)) {

printf(\"can't open the file!\"); return 0 ; }

while(!feof(fp2)) {

t=(book*)malloc(sizeof(book)); if(fread(t,sizeof(book),1,fp2)==1) {

t->next=NULL ; h->next=t ; h=t ; } }

fclose(fp2);

– 11 –

while(1) {

clrscr();

menu();

printf(\"\please choose (0~6): \"); scanf(\"%d\ clrscr(); if(sel==0)

{ if(saveflag==1)/*当退出时判断信息是否保存*/ {

getchar();

printf(\"\\nthe file have been changed!do you want to save it(y/n)?\\n\"); scanf(\"%c\ if(ch1=='y'||ch1=='Y') {

SaveBookInfo(k);

SaveTrainInfo(l); } }

printf(\"\\nThank you!!You are welcome too\\n\"); break ;

}

switch(sel)/*根据输入的sel值不同选择相应操作*/ {

case 1 :

Traininfo(l);break ; case 2 :

searchtrain(l);break ; case 3 :

Bookticket(l,k);break ; case 4 :

Modify(l);break ; case 5:

showtrain(l);break;

case 6 : SaveTrainInfo(l);SaveBookInfo(k);break ; case 0: return 0;

– 12 –

}

printf(\"\\nplease press any key to continue.......\"); getch(); } }

使用说明

运行程序时，首先进入到菜单部分，菜单部分提供了菜单显示和输入功能部分。其运行效果如图19.1所示。在主界面上输入数字0——6，实现相应的功能。

图19.1 火车订票系统主界面

主界面输入“1”，进入添加火车信息界面，如图19.2所示。根据屏幕上给出的提示输入火车的车次，起点，终点，出发时间，到达时间，票价和可以订购的票数。

图19.2 输入效果图

– 13 –

主界面输入“2”，可以查询火车信息，可以选择查询的方法有两种，一种是按照车次查询，一种是按照你想要到达的地方查询，运行效果如图19.3所示。

图19.3 查询效果图

当在主界面输入“3”时，进入订票界面，按照提示输入你想要到达的城市，会自动显示出你终点站为你输入城市的信息，根据提示输入你是否决定订票以及你的个人信息，运行效果如图19.4所示。

图19.4 订票效果图

当在主界面输入“4”时，进入修改界面，根据提示输入你要修改的内容，修改模块的运行效果如图19.5所示。

– 14 –

图19.5 修改效果图

当在主界面输入“5”时，可以显示出所有的火车信息，显示模块效果如图19.6所示。

图19.6 显示效果图

当在主界面输入“6”时，进入到保存模块，将录入的火车信息进行保存，并且将订票人的信息也进行保存，存储在指定的磁盘文件中。运行效果如图19.7所示。

– 15 –

图19.7 保存效果图

– 16 –