能帮我编写一段C语音学生信息管理系统的代码吗

当然可以，以下是一段简单的C语言学生信息管理系统的代码：

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

#define MAX_STUDENTS 100

struct student {
char name[50];
int id;
float gpa;
};

struct student students[MAX_STUDENTS];
int num_students = 0;

void add_student() {
if (num_students >= MAX_STUDENTS) {
printf("Error: too many students\n");
return;
}
struct student s;
printf("Enter name: ");
scanf("%s", s.name);
printf("Enter ID: ");
scanf("%d", &s.id);
printf("Enter GPA: ");
scanf("%f", &s.gpa);
students[num_students] = s;
num_students++;
}

void print_student(struct student s) {
printf("Name: %s\n", s.name);
printf("ID: %d\n", s.id);
printf("GPA: %.2f\n", s.gpa);
}

void print_all_students() {
for (int i = 0; i < num_students; i++) {
print_student(students[i]);
}
}

void search_student() {
int id;
printf("Enter ID to search: ");
scanf("%d", &id);
for (int i = 0; i < num_students; i++) {
if (students[i].id == id) {
print_student(students[i]);
return;
}
}
printf("Student not found\n");
}

int main() {
int choice;
while (1) {
printf("1. Add student\n");
printf("2. Print all students\n");
printf("3. Search student\n");
printf("4. Quit\n");
printf("Enter choice: ");
scanf("%d", &choice);
switch (choice) {
case 1:
add_student();
break;
case 2:
print_all_students();
break;
case 3:
search_student();
break;
case 4:
exit(0);
default:
printf("Invalid choice\n");
}
}
return 0;
}