bool studentLogin(vector<Student>& userInfos, string username, string password) { for (Student userInfo : userInfos) { if (userInfo.id == username && userInfo.password == password) { cout << "登录成功!" << endl; // 登录成功,进入学生菜单 Student student = { username, password,{} }; int choice; do { studentMenu(); cin >> choice; switch (choice) { case 1: {// 查看可选课程 showCourseList(); break; } case 2: { // 选课 cout << "请输入要选的课程编号:" << endl; string code; cin >> code; for (size_t i = 0; i < courses.size(); i++) { if (courses[i].code == code) { // 找到课程,添加到已选课程列表 student.courses.push_back(courses[i]); cout << "选课成功!" << endl; break; } if (i == courses.size() - 1) { // 未找到课程 cout << "没有找到对应的课程,请重新输入!" << endl; } } break; } case 3: { // 查看已选课程 if (student.courses.empty()) { cout << "您还没有选课!" << endl; } else { cout << "已选课程:" << endl; for (size_t i = 0; i < student.courses.size(); i++) { cout << i + 1 << ". " << student.courses[i].name << "(编号:" << student.courses[i].code << ",地点:" << student.courses[i].location << ",学分:" << student.courses[i].credit << ")" << endl; } } break; } case 0: // 退出 break; default: cout << "无效的选择,请重新输入!" << endl; break; } } else {cout<<"登录失败!!" 怎么修改
时间: 2024-03-16 11:43:18 浏览: 23
这段代码缺少大括号,应该在 `} else {` 后面添加大括号,形成完整的 if-else 结构。修改后的代码如下所示:
```
bool studentLogin(vector<Student>& userInfos, string username, string password) {
for (Student userInfo : userInfos) {
if (userInfo.id == username && userInfo.password == password) {
cout << "登录成功!" << endl;
// 登录成功,进入学生菜单
Student student = { username, password,{} };
int choice;
do {
studentMenu();
cin >> choice;
switch (choice) {
case 1: { // 查看可选课程
showCourseList();
break;
}
case 2: { // 选课
cout << "请输入要选的课程编号:" << endl;
string code;
cin >> code;
for (size_t i = 0; i < courses.size(); i++) {
if (courses[i].code == code) {
// 找到课程,添加到已选课程列表
student.courses.push_back(courses[i]);
cout << "选课成功!" << endl;
break;
}
if (i == courses.size() - 1) {
// 未找到课程
cout << "没有找到对应的课程,请重新输入!" << endl;
}
}
break;
}
case 3: { // 查看已选课程
if (student.courses.empty()) {
cout << "您还没有选课!" << endl;
}
else {
cout << "已选课程:" << endl;
for (size_t i = 0; i < student.courses.size(); i++) {
cout << i + 1 << ". " << student.courses[i].name << "(编号:" << student.courses[i].code <<
",地点:" << student.courses[i].location << ",学分:" << student.courses[i].credit << ")" << endl;
}
}
break;
}
case 0: // 退出
break;
default:
cout << "无效的选择,请重新输入!" << endl;
break;
}
} while (choice != 0);
return true;
}
}
cout << "登录失败!" << endl;
return false;
}
```