C语言修改

YorkWaugh

要求：

实验内容2:：试编写一个程序完成：建立一个链表，每个结点包括：学号、姓名、性别、年龄。输入一个年龄，如果链表中的结点所包含的年龄等于此年龄，则将此结点删去。
实验要求：（1）用链表实现。
（2）输入事先已编好的程序，并运行该程序。分析运行结果是否正确。

我的代码：

1. #include <stdio.h>
   
2. #include <stdlib.h>
   
3. #define LEN sizeof(struct Student)
   
4. struct Student
   
5. {
   
6.     int num;
   
7.     char name[20];
   
8.     char gender;
   
9.     int age;
   
10.     struct Student *next;
    
11. };
    
12. int main()
    
13. {
    
14.     int t;
    
15.     struct Student *pt;
    
16.     struct Student *creat(void);
    
17.     void del(int x, struct Student *s);
    
18.     void print(struct Student * s);
    
19.     printf("Input the information: number, name, gender, age\n");
    
20.     pt = creat();
    
21.     printf("Input a number:\n");
    
22.     scanf("%d", &t);
    
23.     del(t, pt);
    
24.     print(pt);
    
25.     return 0;
    
26. }
    
27. struct Student *creat()
    
28. {
    
29.     struct Student *head, *p1, *p2;
    
30.     int n = 0;
    
31.     p1 = p2 = (struct Student *)malloc(LEN);
    
32.     scanf("%d %s %c %d", &p1->num, p1->name, &p1->gender, &p1->age);
    
33.     head = NULL;
    
34.     while (p1->num != 0)
    
35.     {
    
36.         n += 1;
    
37.         if (n == 1)
    
38.             head = p1;
    
39.         else
    
40.             p2->next = p1;
    
41.         p2 = p1;
    
42.         p1 = (struct Student *)malloc(LEN);
    
43.         scanf("%d %s %c %d", &p1->num, p1->name, &p1->gender, &p1->age);
    
44.     }
    
45.     p2->next = NULL;
    
46.     return (head);
    
47. }
    
48. void del(int x, struct Student *s)
    
49. {
    
50.     struct Student *ps;
    
51.     ps = s;
    
52.     while (ps->next != NULL)
    
53.     {
    
54.         if (ps->age == x)
    
55.             ps->next = (*(*ps).next).next;
    
56.         ps = ps->next;
    
57.     }
    
58. }
    
59. void print(struct Student *s)
    
60. {
    
61.     struct Student *ps;
    
62.     ps = s;
    
63.     while (ps->next != NULL)
    
64.     {
    
65.         printf("%d %s %c %d\n", ps->num, ps->name, ps->gender, ps->age);
    
66.         ps = ps->next;
    
67.     }
    
68. }

复制代码

大概是

1. scanf("%d %s %c %d", &p1->num, p1->name, &p1->gender, &p1->age);

复制代码

这里不对
麻烦帮我修改下，急
update：已解决

1. #include <stdio.h>
   
2. #include <stdlib.h>
   
3. #define LEN sizeof(struct Student)
   
4. struct Student
   
5. {
   
6.     int num;
   
7.     char name[20];
   
8.     char gender;
   
9.     int age;
   
10.     struct Student *next;
    
11. };
    
12. int main()
    
13. {
    
14.     int t;
    
15.     struct Student *pt;
    
16.     struct Student *creat(void);
    
17.     void del(int x, struct Student *s);
    
18.     void print(struct Student * s);
    
19.     printf("Input the information: name, number, gender, age\n");
    
20.     pt = creat();
    
21.     print(pt);
    
22.     printf("Input a number:\n");
    
23.     scanf("%d", &t);
    
24.     del(t, pt);
    
25.     if (pt->age == t)
    
26.         pt = pt->next;
    
27.     print(pt);
    
28.     return 0;
    
29. }
    
30. struct Student *creat()
    
31. {
    
32.     struct Student *head, *p1, *p2;
    
33.     int n = 0;
    
34.     p1 = p2 = (struct Student *)malloc(LEN);
    
35.     scanf("%s %d %c %d", p1->name, &p1->num, &p1->gender, &p1->age);
    
36.     head = NULL;
    
37.     while (p1->num != 0)
    
38.     {
    
39.         n += 1;
    
40.         if (n == 1)
    
41.             head = p1;
    
42.         else
    
43.             p2->next = p1;
    
44.         p2 = p1;
    
45.         p1 = (struct Student *)malloc(LEN);
    
46.         scanf("%s %d %c %d", p1->name, &p1->num, &p1->gender, &p1->age);
    
47.     }
    
48.     p2->next = NULL;
    
49.     return (head);
    
50. }
    
51. void del(int x, struct Student *s)
    
52. {
    
53.     struct Student *b1, *b2;
    
54.     b1 = s->next, b2 = s;
    
55.     while (b1->next != NULL)
    
56.     {
    
57.         if (b1->age == x)
    
58.             b2->next = b1->next, b1 = b1->next;
    
59.         else
    
60.             b2 = b1, b1 = b1->next;
    
61.     }
    
62.     if (b1->age == x)
    
63.         b2->next = NULL;
    
64. }
    
65. void print(struct Student *s)
    
66. {
    
67.     struct Student *p1, *p2;
    
68.     p1 = s;
    
69.     do
    
70.     {
    
71.         printf("%d %s %c %d\n", p1->num, p1->name, p1->gender, p1->age);
    
72.         p2 = p1, p1 = p1->next;
    
73.     } while (p2->next != NULL);
    
74. }

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