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我完全没有意识到为什么我的程序没有正确打印。这个程序有一个名为Customers的结构数组，它有一个称为杂货的嵌套数组结构。C编程为什么我的代码不能用嵌套的结构数组输出正确的输出？
这两个索引的（阵列中的客户）打印那里信息很好。客户1的杂货结构索引0是好的。杂货结构索引1给我C垃圾。如果有人能帮忙，我会很感激。
input.txt中：（第一个数字是客户的数量，第二个数字是第一个顾客的杂货第三个数字是第二个顾客杂货。）
2
John Brown
3
Cabbage 1.50 2.5
Cucumbers 1.00 3.0
Tomatoes 2.99 1.5
Mary Winters
4
Squash 1.48 2.5
Zucchini 1.99 3.5
Watercress 1.29 2.5
Tomatoes 2.99 3.0
我的代码输出到所谓“invoices.txt”
/* Preprocessor commands */
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#define VEG_COL 50
/* Defining structs/nested structs */
typedef struct veg{
char vegName[15];
float weight, unitPrice;
} vegitable;
/* ---------------------------------------------- */
typedef struct cx{
char fName[15],lName[15];
int numGroceries;
vegitable groceries[VEG_COL];
} customer;
/* ---------------------------------------------- */
/* Prototypes*/
int numCust(FILE*);
void createCustomer(FILE*,customer *cx, int);
void createGroceryList(FILE*,vegitable *veg);
void printInvoice(FILE*wPtr,customer cx);
/* Main function */
int main() {
FILE *ptr, *wPtr;
int numCustomers, i;
ptr = fopen("input.txt","r");
wPtr = fopen("invoices.txt","w");
numCustomers = numCust(ptr);
customer customerList[numCustomers];
for(i = 0; i < numCustomers; i++) {
createCustomer(ptr,&(customerList[i]), i);
}
for(i = 0; i < numCustomers; i++) {
printInvoice(wPtr,customerList[i]);
}
fclose(ptr);
fclose(wPtr);
system("pause");
return 0;
}
/* ----------------------------------------------
Function that reads file for number of customers */
int numCust(FILE*ptr) {
int num;
fscanf(ptr, "%d", &num);
return num;
}
/* ----------------------------------------------
Function that reads file and creates customer */
void createCustomer(FILE*ptr,customer *cx, int i) {
char tempF[15],tempL[15],k;
fscanf(ptr,"%s%s", tempF,tempL);
strcpy(cx->fName,tempF);
strcpy(cx->lName,tempL);
fscanf(ptr,"%d", &(cx->numGroceries));
for(k=0;k<cx[i].numGroceries;k++) {
createGroceryList(ptr,&(cx[i].groceries[k]));
}
}
/* ----------------------------------------------
Function that reads file and creates customers grocery list */
void createGroceryList(FILE*ptr,vegitable *veg){
char temp[15];
fscanf(ptr,"%s%f%f", temp, &(veg->unitPrice), &(veg->weight));
strcpy(veg->vegName,temp);
}
/* ----------------------------------------------
Function that prints an output file for the invoice */
void printInvoice(FILE*wPtr,customer cx) {
int k, numItems = 0;
float total = 0;
fprintf(wPtr, "Customer Name: %s %s\n\n", cx.fName,cx.lName);
for(k = 0; k < cx.numGroceries; k++) {
fprintf(wPtr, "%s \t%.1f @ %.2f\t$%.2f\n\n", cx.groceries[k].vegName,cx.groceries[k].unitPrice,cx.groceries[k].weight,cx.groceries[k].unitPrice * cx.groceries[k].weight);
total += (cx.groceries[k].unitPrice * cx.groceries[k].weight);
numItems++;
}
fprintf(wPtr, "---------------------------------------------\n\n");
fprintf(wPtr, "Total\t\t\t\t$%.2f\n\n",total);
fprintf(wPtr, "%d items bought\n\n\n\n",numItems);
}
编译您的代码并启用警告，您的编译器应该对您大喊，并告诉您修复您的代码。 –
尝试使用valgrind，将memset设置为0你的结构可以帮助 –
@Ôrel这是Windows代码，查看无用的'system（“pause”）;'显然他们使用的东西，因为'cmd.exe'也是无用的。 –