C语言教师信息管理系统模板

以下是一个简单的C语言教师信息管理系统模板，包括基本的增删改查功能。

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

#define MAX_TEACHERS 100 // 最大教师数

struct Teacher {
    char name[20];
    int age;
    char gender[10];
    char subject[20];
};

struct Teacher teachers[MAX_TEACHERS]; // 教师数组
int numTeachers = 0; // 当前教师数

void printMenu() {
    printf("\n");
    printf("********** 教师信息管理系统 **********\n");
    printf("1. 添加教师信息\n");
    printf("2. 显示所有教师信息\n");
    printf("3. 查找教师信息\n");
    printf("4. 修改教师信息\n");
    printf("5. 删除教师信息\n");
    printf("0. 退出系统\n");
    printf("请选择操作：");
}

void addTeacher() {
    if (numTeachers == MAX_TEACHERS) {
        printf("教师信息已满，无法添加！\n");
        return;
    }
    struct Teacher newTeacher;
    printf("请输入教师姓名：");
    scanf("%s", newTeacher.name);
    printf("请输入教师年龄：");
    scanf("%d", &newTeacher.age);
    printf("请输入教师性别：");
    scanf("%s", newTeacher.gender);
    printf("请输入教师所教学科：");
    scanf("%s", newTeacher.subject);
    teachers[numTeachers] = newTeacher;
    numTeachers++;
    printf("教师信息添加成功！\n");
}

void showTeachers() {
    if (numTeachers == 0) {
        printf("无教师信息！\n");
        return;
    }
    printf("教师姓名\t教师年龄\t教师性别\t所教学科\n");
    for (int i = 0; i < numTeachers; i++) {
        printf("%s\t\t%d\t\t%s\t\t%s\n", teachers[i].name, teachers[i].age, teachers[i].gender, teachers[i].subject);
    }
}

void findTeacher() {
    char name[20];
    printf("请输入要查找的教师姓名：");
    scanf("%s", name);
    for (int i = 0; i < numTeachers; i++) {
        if (strcmp(name, teachers[i].name) == 0) {
            printf("教师姓名\t教师年龄\t教师性别\t所教学科\n");
            printf("%s\t\t%d\t\t%s\t\t%s\n", teachers[i].name, teachers[i].age, teachers[i].gender, teachers[i].subject);
            return;
        }
    }
    printf("未找到该教师信息！\n");
}

void modifyTeacher() {
    char name[20];
    printf("请输入要修改的教师姓名：");
    scanf("%s", name);
    for (int i = 0; i < numTeachers; i++) {
        if (strcmp(name, teachers[i].name) == 0) {
            printf("请输入教师姓名：");
            scanf("%s", teachers[i].name);
            printf("请输入教师年龄：");
            scanf("%d", &teachers[i].age);
            printf("请输入教师性别：");
            scanf("%s", teachers[i].gender);
            printf("请输入教师所教学科：");
            scanf("%s", teachers[i].subject);
            printf("教师信息修改成功！\n");
            return;
        }
    }
    printf("未找到该教师信息！\n");
}

void deleteTeacher() {
    char name[20];
    printf("请输入要删除的教师姓名：");
    scanf("%s", name);
    for (int i = 0; i < numTeachers; i++) {
        if (strcmp(name, teachers[i].name) == 0) {
            for (int j = i; j < numTeachers - 1; j++) {
                teachers[j] = teachers[j + 1];
            }
            numTeachers--;
            printf("教师信息删除成功！\n");
            return;
        }
    }
    printf("未找到该教师信息！\n");
}

int main() {
    int choice;
    do {
        printMenu();
        scanf("%d", &choice);
        switch (choice) {
            case 1:
                addTeacher();
                break;
            case 2:
                showTeachers();
                break;
            case 3:
                findTeacher();
                break;
            case 4:
                modifyTeacher();
                break;
            case 5:
                deleteTeacher();
                break;
            case 0:
                printf("退出系统！\n");
                break;
            default:
                printf("无效操作！\n");
                break;
        }
    } while (choice != 0);
    return 0;
}