Kneeling, data structure experiment, making sports lottery number selector and air passenger booking system

# include & ltstring.h & gt

# include & ltstdlib.h & gt

# Definition number 1000

Structured customer

{ char name[20]；

char id[20]；

Int number;

} t[N]；

Structured air

{ char hangban[ 10]；

int num

char start[20]；

Char exceeds [20];

Charging time [10];

Int ticket book;

Int floating price;

Shuangpu Zhekou;

} s[N]；

int i，j；

int m = 0；

# define print 1 " %- 10s % d % 8s % 1s % 10s % 8d % 10d % 12lf \ n "，s[i]。 Hangban, s[i]. Number, s[i]. Here we go, s[i]. End, s[i]. Time, s[i]. Pu Shu, s[i]. Piaojia, s[i]. Park cheuk-kou

# define print 2 " % 12s % 12s % 8d % 10d \ n "，t[i]。 id，s[i]。 Hangban, s[i]. Number, s[i]. hackberry

void shuru()；

void shuchu()；

void save()；

void read()；

void chaxun()；

void shanchu()；

void ding Piao()；

Void refund ();

void main()

{ int j；

do

{ printf(" * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * \ n \ n ")；

Printf(" * 1。 Enter flight information * \n\n "

"* 2. Browse flight information * \n\n"

"* 3. Query function * \n\n"

"* 4. Delete flight information * \n\n"

"* 5. Reservation function * \n\n"

"* 6. Refund function * \n\n"

"* 0.exit * \ n \ n ")；

printf(" * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * \ n \ n ")；

Printf ("Please choose from 0-6, ending with Enter: \ n \ n");

scanf("%d "，& ampj)；

Switch (j)

{

Case 1: Shuru ();

Break;

Case 2: Shu Chu ();

Break;

Case 3: Cha Xun ();

Break;

Case 4: Shanchu ();

Break;

Case 5: Booking tickets ();

Break;

Case 6: Refund ();

Break;

Case 0:;

Break;

}

}while(j！ =0);

Printf ("Thank you for your use, goodbye! \ n ")；

}//End of main function

Void Shuru ()

{

int y；

for(I = 0； I & ltn；; i++)

{

Printf ("Please enter flight number: \ n");

Scanf("%s ",s[i]. Hangban);

Printf ("Please enter the plane number: \ n");

scanf("%d "，& amps[i]。 num)；

flush all()；

Printf ("Please enter the origin station: \ n");

Scanf("%s ",s[i]. Start);

Printf ("Please enter terminal: \ n");

scanf("%s "，s[i].over)；

flush all()；

Printf ("Please enter time: \ n");

Scanf("%s ",s[i]. Time);

Printf ("Please enter the number of air tickets: \n", m);

scanf("%d "，& amps[i]。 Pu Shu);

Printf ("Please enter the fare: \n", m);

scanf("%d "，& amps[i]。 Piaojia);

Printf ("Please enter fare discount: \n", m);

scanf("%lf "，& amps[i]。 Park Zhekou);

m++；

Printf ("%d messages have been entered. Do you want to continue? Press any key to continue, press 0 to end ",m);

flush all()；

scanf("%d "，& ampy)；

If (y==0)

{

save()；

Shu Chu ();

Break;

}

}

}

void shuchu()

{

char w[ 10]；

read()；

Printf ("flight number, flight number, departure station, terminal time, ticket number, fare discount \ n");

for(I = 0； I & ltm；; i++)

{

printf(print 1)；

}

Printf ("Please press any key to end and return to the parent menu: \ n");

scanf("%s "，w)；

}

Invalid save ()

{

FILE *fp，* FP 1；

if((fp=fopen("a.txt "，" wb"))==NULL)

{

Printf ("Failed to create file! \ n \ n ")；

getchar()；

Return;

}

if((fp 1=fopen("b.txt "，" wb"))==NULL)

{

Printf ("Failed to create file! \ n \ n ")；

getchar()；

Return;

}

for(I = 0； I & ltm；; i++)

if(fwrite(& amp； s[i]，sizeof(struct air)， 1，fp)==0)

Printf ("Cannot input data into file! \ n \ n ")；

fprintf(fp 1，“%d”，m)；

fclose(FP)；

fclose(FP 1)；

}

Invalid read ()

{

FILE *fp，* FP 1；

if((fp=fopen("a.txt "，" Rb ")= = NULL)

{

Printf ("Error, please check whether the file exists, and press any key to return to the main menu");

getchar()；

}

if((fp 1=fopen("b.txt "，" rb"))==NULL)

{

Printf ("Failed to create file! \ n \ n ")；

getchar()；

Return;

}

fscanf(fp 1，" %d "，& ampm)；

fclose(FP 1)；

for(I = 0； I & ltm；; i++)

{

Fred (& amps[i], sizeof(air), 1, FP);

}

fclose(FP)；

}

Void inquiry ()

{

char name 1[20]；

char name 2[20]；

char c[ 10]，no[20]；

int n；

do

{

Printf ("Please select query information: \ n \ n");

printf(" * * * * * * * * * * * * * * * * * * * * * * * * * * * * * \ n \ n ")；

Printf("* 1。 Inquire about airline information * \n\n "

"* 2. Inquiring about customer information * \n\n"

"* 0.return * \ n \ n ")；

printf(" * * * * * * * * * * * * * * * * * * * * * * * * * * * * * \ n \ n ")；

Printf ("Please choose from 0-2: \n\n"

"Press other keys and end with Enter to return to the main menu: \ n \ n");

scanf("%d "，& ampn)；

If (n==0)

Break;

other

Switch (n)

{Case 1:

Printf ("Please enter the name of the originating station: \ n");

scanf("%s "，name 1)；

Printf ("Please enter a terminal name: \ n");

scanf("%s "，name 2)；

Break;

Case 2:

Printf ("Please enter the customer's ID number: \ n");

Scanf("%s ",no);

Break;

}

read()；

for(I = 0； I & ltm；; i++)

{

if(strcmp(s[i].over，name 1)==0||strcmp(s[i].over，name2)==0)

Printf ("\ nSearch flight information successfully! \ n ")；

Printf ("flight number, flight number, departure station, terminal time, ticket number, fare discount \ n");

printf(print 1)；

Break;

}

other

if(strcmp(t[i])。 id，no)==0)

{

Printf ("\ nCustomer information found successfully! \ n ")；

Printf ("ID number, flight number, flight number and ticket number");

printf(print 2)；

Break;

}

}

Printf ("No information you need or search is complete: \n\n"

"Do you want to continue the search? Type y or n to end with Enter \ n ");

scanf("%s "，c)；

}while(strcmp(c，" y ")= = 0)；

}

The beginning of the void mountain ()

{

char name 1[20]；

char name 2[20]；

char c[ 10]；

int no，n；

do

{

Printf ("Please select Delete to end with carriage return: \ n \ n");

printf(" * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * \ n \ n ")；

Printf("* 1。 Delete by flight number *\n\n "

"* 2. Delete by airline *\n\n"

"* 0.return * \ n \ n ")；

printf(" * * * * * * * * * * * * * * * * * * * * * * * * * * * * * \ n \ n ")；

Printf ("Please choose 0-2 to end with carriage return: \ n");

scanf("%d "，& ampn)；

If (n==0)

Break;

Switch (n)

{

Case 1:

Printf ("Please enter flight number: \ n");

Scanf("%d ",&no);

read()；

Break;

Case 2:

Printf ("Please enter the name of the originating station: \ n");

scanf("%s "，name 1)；

Printf ("Please enter a terminal name: \ n");

scanf("%s "，name 2)；

read()；

Break;

}

for(I = 0； I & ltm；; i++)

{

If (s[i]. num==no||strcmp(s[i].start，name 1)= = 0 & amp； & ampstrcmp(s[i].over，name2)==0)

{

s[I]= s[m- 1]；

m-；

}

}

Printf ("Search completed or no such information \ n \ n");

Printf ("Continue deleting \ n");

Printf ("Please type y or n to end with Enter \ n");

scanf("%s "，c)；

save()；

If (! strcmp(c，" y "))

Printf ("Please press any key to return to the upper menu: \ n");

Break;

}while(n！ = 1。 & ampn！ = 2 & amp& ampn！ =0);

}

Invalid booking ()

{ int n；

char a[ 10]，b[ 10]；

do

{

Printf ("Please enter customer ID number: \ n");

scanf("%d "，& ampt[i]。 id)；

Printf ("Please enter flight number: \ n");

scanf("%s "，b)；

Printf ("Please enter the plane number: \ n");

scanf("%d "，& amps[i]。 num)；

flush all()；

m++；

Printf ("Please enter the number of air tickets you want to book: \ n");

scanf("%d "，& ampn)；

If(strcmp(s[i]. Hangban, b)! =0)

{

Printf ("Please enter a valid ticket number! \ n ")；

Break;

}

other

If (s[i]. Pu Shu! = 0 & amp& amps[i]。 Gone with the wind book & gt=n)

{

s[i]。 Piaoshu =s[i]. Pu Shu-n;

save()；

Printf ("Booked successfully, press any key to return to the main menu! \ n \ n ")；

getchar()；

Break;

}

Printf ("Do you want to continue? Please enter y or n to end with carriage return: \ n ");

scanf("%s "，a)；

}while(！ strcmp(a，" y "))；

}

Void Refund ()

{

int n；

char a[ 10]，b[20]；

do

{printf ("Please enter the customer ID number: \ n");

scanf("%s "，b)；

Printf ("Please enter the number of air tickets you want to refund: \ n");

scanf("%d "，& ampn)；

if(strcmp(b，t[i])。 id)==0)

{s[i]。 Piaoshu =s[i]. Pu Shu+n;

save()；

Printf ("Refund successful! \ n \ n ")； }

Else {printf ("Refund failed! \ n ")；

Printf ("Do you want to continue? Please type y or n to end with Enter: \ n \ n ");

scanf("%s "，a)；

}while(！ strcmp(a，" y "))；

getchar()；

}