题目一

【问题描述】

以学校职工为基类，派生出教师类和管理人员类，又从教师类和管理人员类共同派生出教师管理人员类。

【输出形式】

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Zhao is a Staff  20 years old
Zhang is a Teacher 30 years old, Lecture
Wang is a management 50 years old, dean
Li is a Teacher management 40 years old, Peofessor,
department head

【代码】

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#include  <iostream>
using namespace std;
#include<cstring>
 
class CStaff {
protected:
    int number;
    char name[10];
    int age;
public:
    CStaff(int num, const char *na, int a) {
        number = num;
        age = a;
        strcpy(name, na);
    }
    void Display() { cout << name << "  is  a  Staff  " << age << "  yeas  old" << endl; }
};
 
class CTeacher : virtual public CStaff {
protected:
    char zch[20];          //职称
public:
    CTeacher(int num, const char *na, int a, const char *zc);
    void Display() {
        cout << name << "  is  a  Teacher  " << age << "  yeas  old,  " << zch << endl;
    }
};
 
CTeacher::CTeacher(int num, const char *na, int a, const char *zc) : CStaff(num, na, a){
    strcpy(zch, zc);
}
 
 
class CManagement : virtual public CStaff {
protected:
    char zw[50];                          //职务
public:
    CManagement(int num, const char *na, int a, const char *z);
    void Display() {
        cout << name << "  is  a  management  " << age << "  yeas  old,  " << zw << endl;
    }
};
 
CManagement::CManagement(int num, const char *na, int a, const char *z): CStaff(num, na, a) {
    strcpy(zw, z);
}
 
class CTeacherManagement : virtual public CTeacher, virtual public CManagement {
public:
    CTeacherManagement(int num, const char *na, int a, const char *zc, const char *z);
    void Display() {
        cout << name << "  is  a  Teacher  management  " << age << "  yeas  old,  "
             << zch << ",  " << zw << endl;
    }
};
 
CTeacherManagement::CTeacherManagement(int num, const char *na, int a, const char *zc, const char *z)
: CStaff(num, na, a), CTeacher(num, na, a, zc),  CManagement(num, na, a, z) {
}
 
int main() {
    CStaff s1(101, "Zhao", 20);
    CTeacher t1(102, "Zhang", 30, "Lecture");
    CManagement m1(103, "Wang", 50, "dean");
    CTeacherManagement tm1(104, "Li", 40, "Peofessor", "department  head");
    s1.Display();
    t1.Display();
    m1.Display();
    tm1.Display();
    return 0;
}