这段代码哪错了 #include <iostream> #include <iomanip> using namespace std; class Staff { protected: int code; string name; static int count; public: Staff(string n) { name = n; code = count; count++; } void SetName(string s) { name = s; } string GetName() { return name; } int GetCode() { return code; } static int GetStaffCount() { return count; } }; class Teacher : virtual public Staff { protected: string subject; public: Teacher(string n, string m) : Staff(n) { subject = m; } void SetSubject(string s) { subject = s; } string GetSubject() { return subject; } }; class Officer : virtual public Staff { protected: string work; public: Officer(string n, string m) : Staff(n) { work = m; } void SetWork(string s) { work = s; } string GetWork() { return work; } }; class Teacher_Officer : public Teacher, public Officer { public: Teacher_Officer(string n, string m, string s) : Staff(n), Teacher(n, m), Officer(n, s) {} }; int main() { Teacher t1("孔子", "儒家文学"); // 创建教学类员工t1 Teacher t2("公输班", "建筑学"); Officer o1("端木赐", "财务科长"); // 创建教辅类员工o1 Teacher_Officer to3("颜回", "儒家文学", "副院长"); // 创建教师教辅类员工to3 cout << "共有教职工" << Staff::GetStaffCount() << "人" << endl; cout << t1.GetCode() << ", " << t1.GetName() << ", " << t1.GetSubject() << endl; cout << t2.GetCode() << ", " << t2.GetName() << ", " << t2.GetSubject() << endl; cout << o1.GetCode() << ", " << o1.GetName() << ", " << o1.GetWork() << endl; cout << to3.GetCode() << ", " << to3.GetName() << ", " << to3.GetSubject() << ", " << to3.GetWork() << endl; return 0; }

这段代码有两个问题：

1.需要将 `count` 初始化为 0，因为静态成员变量不会自动初始化为 0。

2.在 `Teacher_Officer` 类的构造函数中，应该只给 `Teacher` 和 `Officer` 传递它们自己的参数，而不是将 `Staff` 类的参数也传递进去。

修改后的代码如下：

#include <iostream>
#include <iomanip>
using namespace std;

class Staff {
protected:
    int code;
    string name;
    static int count;

public:
    Staff(string n) {
        name = n;
        code = count;
        count++;
    }

    void SetName(string s) {
        name = s;
    }

    string GetName() {
        return name;
    }

    int GetCode() {
        return code;
    }

    static int GetStaffCount() {
        return count;
    }
};

int Staff::count = 0;

class Teacher : virtual public Staff {
protected:
    string subject;

public:
    Teacher(string n, string m) : Staff(n) {
        subject = m;
    }

    void SetSubject(string s) {
        subject = s;
    }

    string GetSubject() {
        return subject;
    }
};

class Officer : virtual public Staff {
protected:
    string work;

public:
    Officer(string n, string m) : Staff(n) {
        work = m;
    }

    void SetWork(string s) {
        work = s;
    }

    string GetWork() {
        return work;
    }
};

class Teacher_Officer : public Teacher, public Officer {
public:
    Teacher_Officer(string n, string m, string s) : Teacher(n, m), Officer(n, s) {}
};

int main() {
    Teacher t1("孔子", "儒家文学"); // 创建教学类员工t1
    Teacher t2("公输班", "建筑学");
    Officer o1("端木赐", "财务科长"); // 创建教辅类员工o1
    Teacher_Officer to3("颜回", "儒家文学", "副院长"); // 创建教师教辅类员工to3

    cout << "共有教职工" << Staff::GetStaffCount() << "人" << endl;
    cout << t1.GetCode() << ", " << t1.GetName() << ", " << t1.GetSubject() << endl;
    cout << t2.GetCode() << ", " << t2.GetName() << ", " << t2.GetSubject() << endl;
    cout << o1.GetCode() << ", " << o1.GetName() << ", " << o1.GetWork() << endl;
    cout << to3.GetCode() << ", " << to3.GetName() << ", " << to3.GetSubject() << ", " << to3.GetWork() << endl;

    return 0;
}