用你C++编写一个学生信息管理系统
时间: 2024-05-13 17:14:04 浏览: 9
好的,下面是一个简单的学生信息管理系统的C语言代码:
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_STUDENTS 100
struct student {
char name[50];
int id;
int age;
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 new_student;
printf("Enter student name: ");
scanf("%s", new_student.name);
printf("Enter student ID: ");
scanf("%d", &new_student.id);
printf("Enter student age: ");
scanf("%d", &new_student.age);
printf("Enter student GPA: ");
scanf("%f", &new_student.gpa);
students[num_students++] = new_student;
printf("Student added.\n");
}
void list_students() {
if (num_students == 0) {
printf("No students.\n");
return;
}
printf("Name\tID\tAge\tGPA\n");
for (int i = 0; i < num_students; i++) {
printf("%s\t%d\t%d\t%.2f\n", students[i].name, students[i].id, students[i].age, students[i].gpa);
}
}
void delete_student() {
int student_id;
printf("Enter student ID: ");
scanf("%d", &student_id);
int found = 0;
for (int i = 0; i < num_students; i++) {
if (students[i].id == student_id) {
found = 1;
for (int j = i; j < num_students - 1; j++) {
students[j] = students[j + 1];
}
num_students--;
printf("Student deleted.\n");
break;
}
}
if (!found) {
printf("Student not found.\n");
}
}
int main() {
int choice;
while (1) {
printf("1. Add student\n");
printf("2. List students\n");
printf("3. Delete student\n");
printf("4. Exit\n");
printf("Enter your choice: ");
scanf("%d", &choice);
switch (choice) {
case 1:
add_student();
break;
case 2:
list_students();
break;
case 3:
delete_student();
break;
case 4:
printf("Exiting.\n");
exit(0);
default:
printf("Invalid choice.\n");
}
printf("\n");
}
return 0;
}
```
这个学生信息管理系统可以添加学生、列出所有学生、删除学生。每个学生有姓名、学号、年龄和GPA。