小编Ter*_*ien的帖子

所以这是我的程序的一部分,我无法调用函数,我真的需要一些帮助.它基本上是选择任一功能并输入数据,然后打印该数据.我做错了什么？请帮助,我一直在努力

"[链接器]引用Customer_Record()'" , [Linker error] undefined reference to Car_Record()'和'ld返回1退出状态"

 #include <stdio.h>
 #include <string.h>  
 #include <stdlib.h>
 #include <windows.h>  
 #include <conio.h>

void Customer_Record(), Car_Record();
int num;

struct Customer {
    char customer_ID[20];
    int license;
    char address[20];
    int phone;
    char email[20];
} cust;

struct car {

    int regno[20];
    char model[20];
    char colour[10];
} car;


main() {
    printf("               Enter 1 to go to Customer Record \n\n");
    printf("               Enter 2 to go to Car Record \n\n");
    scanf("%d", &num);
    if (num = 1) {
        Customer_Record(); …