C语言编写学生管理系统

非常感谢您的提问。以下是一个简单的 C 语言代码示例，用于编写学生管理系统：

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

#define MAX_STUDENTS 100

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

int main() {
struct student students[MAX_STUDENTS];
int num_students = 0;

while (1) {
printf("Enter a command (add, list, quit): ");
char command[10];
scanf("%s", command);

if (strcmp(command, "add") == 0) {
if (num_students == MAX_STUDENTS) {
printf("Error: too many students\n");
continue;
}

struct student new_student;
printf("Enter name: ");
scanf("%s", new_student.name);
printf("Enter ID: ");
scanf("%d", &new_student.id);
printf("Enter GPA: ");
scanf("%f", &new_student.gpa);

students[num_students] = new_student;
num_students++;
} else if (strcmp(command, "list") == 0) {
printf("Name\tID\tGPA\n");
for (int i = 0; i < num_students; i++) {
printf("%s\t%d\t%.2f\n", students[i].name, students[i].id, students[i].gpa);
}
} else if (strcmp(command, "quit") == 0) {
break;
} else {
printf("Error: invalid command\n");
}
}

return 0;
}

希望这个示例能够帮助您编写学生管理系统。如果您有任何其他问题，请随时问我。