用c语言写一个单链表储存学生的学号和成绩

好的，这个问题可以回答。以下是用C语言实现单链表储存学生学号和成绩的代码：

#include <stdio.h>
#include <stdlib.h>

struct student {
    int id;
    int score;
    struct student *next;
};

int main() {
    struct student *head = NULL;
    struct student *tail = NULL;
    int id, score;

    // 读入学生信息并创建链表
    while (scanf("%d%d", &id, &score) == 2) {
        struct student *node = (struct student*) malloc(sizeof(struct student));
        node->id = id;
        node->score = score;
        node->next = NULL;

        if (head == NULL) {
            head = node;
            tail = node;
        } else {
            tail->next = node;
            tail = node;
        }
    }

    // 遍历链表并输出学生信息
    struct student *p = head;
    while (p != NULL) {
        printf("id: %d, score: %d\n", p->id, p->score);
        p = p->next;
    }

    // 释放链表内存
    p = head;
    while (p != NULL) {
        struct student *tmp = p;
        p = p->next;
        free(tmp);
    }

    return 0;
}

以上代码实现了读入学生信息并创建单链表，遍历链表并输出学生信息，最后释放链表内存的功能。