有人可以解释一下在这段代码中找到总部分有什么问题吗

Question

每当我运行这个时，我都会得到类似“196875307”的总数，可以 有人告诉我它出了什么问题。这里我上传了整个代码。它说我的帖子主要是代码并添加更多细节，所以请原谅我输入这些不必要的东西XD

#include <stdio.h>
int room;
char name[20];
int i;

void main()
{
int answr,fc[6],z=0,tot;
char ans;
char food[8][30]={"Bread","Noodles","Salad","Popcorn","Chocolate ice 
cream","Vanilla ice cream","Cold Coffee","Milk Shake"};
int price[8]={180,120,65,55,70,70,110,200};
printf("\n                        *********");
printf("\n                        MENU CARD");
printf("\n                        *********\n\n\n\n");
printf("\n              Food Code\t\tprice\t\t Food Name\n");

for(i=0;i<8;i++)
{
printf("\n\t\t%d",i+1);
 printf("\t\t%d",price[i]);
printf("\t\t%s",food[i]);
}
printf("\n\n\n\t *PRESS 0 TO GO TO THE MAIN MENU\n\t *PRESS 1 TO ORDER 
FOOD");
scanf(" %d",&answr);
switch(answr)
{
case 0:
    {
        printf("Enter the main menu function here");
        break;
    }
case 1:do
{
 printf("ENTER THE FOOD CODE YOU WANT TO HAVE :: ");
 scanf(" %d",&fc[z]);
 z++;
  tot=tot+fc[z];
  printf("total so far is %d",tot);

 printf("DO YOU WANT MORE(Y/N) ::");
 scanf(" %c",&ans);

}while((ans=='y')||(ans=='Y'));
    printf("\nEnter your room number:");
    scanf(" %d",&room);
    printf("\nEnter your name:");
    scanf(" %s",&name);


}
}

Answer 1

问题出在你的 do 循环上。您需要将 tot 初始化为 0，并使用用户输入的“食物代码”作为价格数组的数组索引。我没有看到您声明的“fc”数组有任何用处。此代码应该适用于 switch 语句中的情况 1。

请记住，C 中的 main 函数返回一个 int。

do {
    tot = 0;
    printf("ENTER THE FOOD CODE YOU WANT TO HAVE :: ");
    scanf("%d", &z);
    if (z < 1 || z > 8) {
        printf("Invalid food code\n");
        return -1; // main should return int in a C program
    }
    tot=tot+price[z-1];
    printf("total so far is %d\n",tot);

    printf("DO YOU WANT MORE(Y/N) ::");
    scanf(" %c",&ans);

} while((ans=='y')||(ans=='Y'));