#include <string>
#include <iostream>
#include <algorithm>
using namespace std;
//学生:学号,姓名,性别,年龄,班级
//功能:输入,查询(按姓名),修改数据,浏览数据,删除数据,退出程序
struct Student {
char *id;
char *name;
char *gender;
int age;
char *Class;
} a[100];
void shuru();
void chaxun();
void xiugai();
void liulan();
void shanchu();
void tuichu();
int k = 0; //对象索引
char *n[100]; //名字索引
int main() {
cout << "欢迎使用学生信息管理系统 ^_^" << endl;
cout << "请选择您要使用的业务:\n\
1.增加新同学的信息。\n\
2.按姓名查询某位同学的信息。\n\
3.修改某位同学的信息。\n\
4.浏览全部同学的信息。\n\
5.删除老同学的信息。" << endl;
int x;
while (1) {
cin >> x;
switch (x) {
case 1:
shuru();
break;
case 2:
chaxun();
break;
case 3:
xiugai();
break;
case 4:
liulan();
break;
case 5:
// shanchu();
break;
case 6:
tuichu();
break;
}
}
return 0;
}
void shuru() {
cout << "请输入新同学的学号" << endl;
cin >> a[k].id;
cout << "请输入新同学的姓名" << endl;
cin >> a[k].name;
n[k] = a[k].name;
cout << "请输入新同学的性别" << endl;
cin >> a[k].gender;
cout << "请输入新同学的年龄" << endl;
cin >> a[k].age;
cout << "请输入新同学的班级" << endl;
cin >> a[k].Class;
k++;
}
void chaxun() {
int judge = 0;
cout << "请输入所要查询的同学的姓名" << endl;
char *name;
cin >> name;
//查找名单里是否有姓名为name的同学(没有了报错)
for (int i = 0; i < 100; i++) {
if (strcmp(n[i], name)) {
//找到了就输出name同学的个人信息
cout << "学号:" << a[i].id << endl;
cout << "姓名:" << a[i].name << endl;
cout << "性别:" << a[i].gender << endl;
cout << "年龄:" << a[i].age << endl;
cout << "班级:" << a[i].Class << endl;
judge++;
break;
}
}
if (!judge)
cout << "找不到该同学" << endl;
}
void xiugai() {
int judge = 0;
cout << "请输入所要修改的同学的姓名" << endl;
char *name;
cin >> name;
//查找文件里是否有姓名为name的同学(没有了报错)
for (int i = 0; i < 100; i++) {
if (strcmp(n[i], name)) {
cout << "请输入该同学修改后的信息:" << endl;
cout << "请输入该同学的学号" << endl;
cin >> a[i].id;
cout << "请输入该同学的姓名" << endl;
cin >> a[i].name;
cout << "请输入该同学的性别" << endl;
cin >> a[i].gender;
cout << "请输入该同学的年龄" << endl;
cin >> a[i].age;
cout << "请输入该同学的班级" << endl;
cin >> a[i].Class;
cout << "修改完成" << endl;
judge++;
break;
}
}
if (!judge) {
cout << "找不到该同学" << endl;
}
}
void liulan() {
int num = strlen(*n);
cout << "找不到同学" << endl;
for (int i = 0; i < num; i++) {
cout << "学生" << i << ":" << endl;
cout << "学号:" << a[i].id << endl;
cout << "姓名:" << a[i].name << endl;
cout << "性别:" << a[i].gender << endl;
cout << "年龄:" << a[i].age << endl;
cout << "班级:" << a[i].Class << endl;
cout << endl;
}
}
void shanchu() {
cout << "请输入所要删除的同学的姓名" << endl;
char name;
cin >> name;
//读取文件内容
//查找文件里是否有姓名为name的同学(没有了报错)
//找到了就删除该同学的信息
}
void tuichu() {
exit(0);
}
对C++不是太理解,为什么这样输入会出错