C语言自动售货机代码

#include

void GetltemName(char *item, FILE *file);

int GetltemPrice(FILE *file);

void AcceptMoney(int price);

//symbolic constant definitions

#define CAPACITY 10//max number itemavailable to vend int main(void){char name[CAPACITY][20]={0};

int price[CAPACITY]={0};

FILE *stockfile;

int i,Nitems,choice;

int listend;

stockfile=fopen("pricelist.txt","r");

if(stockfile==NULL){printf("Error initialising vend: pricelist.txt not opened");}else {//read stock from file listend=0;

Nitems=0;

do {price[Nitems]=GetltemPrice(stockfile); GetltemName(name[Nitems],stockfile);

if(price[Nitems]>0){Nitems++;}else {listend=1;}}

while(Nitems

//print menu

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

for(i=0;i

%20s:

%dp",i,name[i],price[i]);}//request selection

printf("\n\n");

do {printf("Please make your chioce(enter CTRL-C to quit);");

scanf("%d",&choice);}while(choice<0||choice>Nitems-1);

printf("%s seleted.\n",name[choice]);

AcceptMoney(price[choice]);

printf("\nEnjoy your %s.\n",name[choice]);}fclose(stockfile);

return 0;}void GetltemName(char *item,FILE *file){int len;

if(feof(file)){item[0]='\0';}else {fgets(item,20,file);

len=strlen(item);

if(item[len-1]=='\n'){item[len-1]='\0';}}}void AcceptMoney(int price){int money=0,coin,left;

printf("Please pay %d p. 10p,5p,2p,1p accepted. No change given.\n\n",price);

do {left=price;

printf("Price:

%d, paid:

%d, to pay:

%d,",price,money,left);

do {printf("please enter coin:

\n");

scanf("%d",&coin);}while(coin!=1&&coin!=2&&coin!=5&&coin!=10); money=money+coin;

left=price-money;}while(left>0);

printf("%d p paid. Thank you.",money);}int GetltemPrice(FILE *file) {int j;

if(feof(file)){j='\0';}else {fscanf(file,"%d",&j);}return j;}COMMODITY FILE : pricelist.txt

40Mars Bar

40Toffee Crisp

30Kit Kat

25Toblerone

40bounty

50Topic0