void modifyMember(string studentID, string newGroup, string newPosition) { for (int i = 0;i < members.size();i++); { if (members[i].studentID == studentID) { members[i].group = newGroup; members[i].position = newPosition; } } } void displayMembers() { for (int i = 0;i < members.size();i++); { cout << "Name:" << members[i].studentname << endl; cout << "StudentID:" << members[i].studentID << endl; cout << "Department:" << members[i].department << endl; cout << "Grade:" << members[i].grade << endl; cout << "Group:" << members[i].group << endl; cout << "Position:" << members[i].position << endl; cout << endl; } } 这段代码错误怎么改

这段代码存在两个问题，分别是多余的分号和成员变量名的错误。以下是修改后的代码：

void modifyMember(string studentID, string newGroup, string newPosition) {
    for (int i = 0; i < members.size(); i++) {
        if (members[i].studentID == studentID) {
            members[i].group = newGroup;
            members[i].position = newPosition;
        }
    }
}

void displayMembers() {
    for (int i = 0; i < members.size(); i++) {
        cout << "Name: " << members[i].name << endl;
        cout << "StudentID: " << members[i].studentID << endl;
        cout << "Department: " << members[i].department << endl;
        cout << "Grade: " << members[i].grade << endl;
        cout << "Group: " << members[i].group << endl;
        cout << "Position: " << members[i].position << endl;
        cout << endl;
    }
}

在 `modifyMember` 函数中，移除了 `for` 循环后面的多余分号。同时，修改了 `displayMembers` 函数中成员变量名为 `name` 的输出错误。

请注意，以上的修改假设了在代码的其他部分已经定义了 `vector<Member> members` 并正确地进行了成员数据的读取和存储。