1. 建立一个顺序存储结构存储学生的信息： ```c #include <stdio.h> typedef struct { int id; char name[20]; int score; } Student; Student students[] = { {1, "王令", 98}, {3, "张成", 67}, {5, "陈晨", 74} }; int n = sizeof(students) / sizeof(Student); ``` 2. 查询学号为5号学生的姓名和成绩： ```c for (int i = 0; i < n; i++) { if (students[i].id == 5) { printf("学号：%d，姓名：%s，分数：%d ", students[i].id, students[i].name, students[i].score); break; } } ``` 3. 向顺序存储结构中插入学号：8，姓名：李时，分数：89的学生信息，插入到顺序表中第2号位置： ```c Student new_student = {8, "李时", 89}; for (int i = n; i > 1; i--) { students[i] = students[i - 1]; } students[1] = new_student; n++; ``` 4. 计算顺序表中学生平均分： ```c int total_score = 0; for (int i = 0; i < n; i++) { total_score += students[i].score; } double average_score = (double)total_score / n; printf("平均分：%.2f ", average_score); ``` [2024-07-20 19:17:42 | AI写代码神器 | 413点数解答]