int main() { int choice; do { cout << "1.增加人员信息" << endl; cout << "2.删除人员信息" << endl; cout << "3.修改人员信息" << endl; cout << "4.查找人员信息" << endl; cout << "5.保存人员信息" << endl; cout << "6.读取人员信息" << endl; cout << "0.退出系统" << endl; cout << "请输入你的choice" << endl; cin >> choice; switch (choice) { switch (choice) { case 1: { string id, name, dept, grade, group, pos; cout << "Enter student ID: "; cin >> id; cout << "Enter name: "; cin >> name; cout << "Enter department: "; cin >> dept; cout << "Enter grade: "; cin >> grade; cout << "Enter group: "; cin >> group; cout << "Enter position: "; cin >> pos; Member member(id, name, dept, grade, group, pos); team.addMember(member); cout << "Member added successfully." << endl; break; } case 2: { string id; cout << "Enter student ID to delete: "; cin >> id; team.deleteMember(id); cout << "Member deleted successfully." << endl; break; } case 3: { string id, group, position; cout << "Enter student ID to modify: "; cin >> id; cout << "Enter new group: "; cin >> group; cout << "Enter new position: "; cin >> position; team.modifyMember(id, group, position); cout << "Member modified successfully." << endl; break; } case 4: team.displayMembers(); break; case 5: team.saveToFile(); break; case 0: cout << "Exiting program." << endl; break; default: cout << "Invalid choice. Please try again." << endl; break; } } while (choice != 0); return 0; } 这段代码错误该怎么改

这段代码有一些语法和逻辑上的错误。下面是修改后的代码：

#include <iostream>
#include <string>
#include "Member.h" // 假设Member类的定义在Member.h文件中
#include "Team.h" // 假设Team类的定义在Team.h文件中

int main() {
    int choice;
    Team team;

    do {
        cout << "1.增加人员信息" << endl;
        cout << "2.删除人员信息" << endl;
        cout << "3.修改人员信息" << endl;
        cout << "4.查找人员信息" << endl;
        cout << "5.保存人员信息" << endl;
        cout << "6.读取人员信息" << endl;
        cout << "0.退出系统" << endl;
        cout << "请输入你的choice: ";
        cin >> choice;

        switch (choice) {
            case 1: {
                string id, name, dept, grade, group, pos;
                cout << "Enter student ID: ";
                cin >> id;
                cout << "Enter name: ";
                cin >> name;
                cout << "Enter department: ";
                cin >> dept;
                cout << "Enter grade: ";
                cin >> grade;
                cout << "Enter group: ";
                cin >> group;
                cout << "Enter position: ";
                cin >> pos;
                Member member(id, name, dept, grade, group, pos);
                team.addMember(member);
                cout << "Member added successfully." << endl;
                break;
            }
            case 2: {
                string id;
                cout << "Enter student ID to delete: ";
                cin >> id;
                team.deleteMember(id);
                cout << "Member deleted successfully." << endl;
                break;
            }
            case 3: {
                string id, group, position;
                cout << "Enter student ID to modify: ";
                cin >> id;
                cout << "Enter new group: ";
                cin >> group;
                cout << "Enter new position: ";
                cin >> position;
                team.modifyMember(id, group, position);
                cout << "Member modified successfully." << endl;
                break;
            }
            case 4:
                team.displayMembers();
                break;
            case 5:
                team.saveToFile();
                break;
            case 6:
                team.readFromFile();
                break;
            case 0:
                cout << "Exiting program." << endl;
                break;
            default:
                cout << "Invalid choice. Please try again." << endl;
                break;
        }
    } while (choice != 0);

    return 0;
}

在这个修改后的代码中，主要做了以下几个修改：

1. 添加了头文件 `Member.h` 和 `Team.h`，假设 `Member` 和 `Team` 类的定义分别在这两个头文件中。
2. 修正了 `switch` 语句的嵌套错误，移除了多余的 `switch` 关键字。
3. 在 `case 6` 中添加了调用 `team.readFromFile()` 的代码，用于读取人员信息。
4. 修正了 `do-while` 循环的位置，使得用户输入的选项能够正确地被处理。

请根据具体情况进行适当的调整，并确保相关的类和函数的定义和实现已经正确完成。