这是我的代码
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
struct node {
char courseID[6];
int section;
int credits;
struct node *link;
};
int main(void)
{
int run=1;
char coursetemp[6];
int option, num, num2;
struct node *ptr;
void add(struct node **, int, int, char[]);
void display(struct node *);
void del(struct node *, int);
ptr = NULL;
while (run==1)
{
printf("Main Menu\n 1. Add Course\n2.Delete Course\n3. Display Enrolled courses\n");
scanf("%d", &option);
if (option == 1)
{
printf("Please enter the course ID\n");
scanf("%s", coursetemp);
printf("Please enter the course section, and amount of credits it's worth\n");
scanf("%d %d", &num, &num2);
add(&ptr, num, num2, coursetemp);
display(ptr);
}
if (option == 2)
{
printf("Enter the element to delete\n");
scanf("%d", &num);
del(ptr, num);
}
if (option == 3)
{
display(ptr);
}
else
{
//printf("Please enter a proper selection\n");
} //end of while
}
return 0;
}
void display(struct node *pt)
{
while (pt != NULL)
{
printf("%s %d %d\n", pt->courseID, pt->section, pt->credits);
pt = pt->link;
}
}
只要课程名称只是字母,这就像我想要的那样工作。但是一旦我尝试使用字母和数字前。CIS444 我得到一堆随机的 ascii 字符。我觉得这是一个简单的修复,但我不记得如何