请检查下面一段代码的错误：#include<iostream> using namespace std; class Staff { protected: string name; char sex; string birth; string phone; public: Staff(string n, char s, string b, string p){ name = n; sex = s; birth = b; phone = p; } void display(){ cout << "姓名：" << name << endl; cout << "性别：" << sex << endl; cout << "出生日期：" << birth << endl; cout << "电话：" << phone << endl; } }; class Date { protected: int year,month,day; public: Date( int yy,int mm,int dd){ year=yy; month=mm; day=dd; } void dispaly() { cout<<"生日："<<year<<"-"<<month<<"-"<<day<<endl; } }; class Teacher : virtual public Staff,virtual public Date { protected: string title; public: Teacher(string n, char s,int yy,int mm,int dd, string p, string t) : Staff(n,s,p),Date(yy,mm,dd) { title = t; } void display(){ Staff::display(); Date::dispaly(); cout << "职称：" << title << endl; } }; class Leader : virtual public Staff,virtual public Date { protected: string duty; public: Leader(string n, char s, int yy, int mm, int dd, string p, string d) : Staff(n,s,p),Date(yy,mm,dd){ duty = d; } void display(){ Staff::display(); Date::dispaly(); cout << "职务：" << duty << endl; } }; class DbTeacher : public Teacher, public Leader { protected: int salary; public: DbTeacher(string n, char s, int yy, int mm, int dd, string p, string t, string d, int sal) : Staff(n,s,p),Date(yy,mm,dd), Teacher(n,s,p,t), Leader(n,s,p,d){ salary = sal; } void display(){ Staff::display(); Date::dispaly(); cout << "职称：" << title << endl; cout << "职务：" << duty << endl; cout << "工资：" << salary << endl; } }; int main() { DbTeacher dt("徐璞昌", 'F', 2003,5,6, "19807168041", "高级教师", "系主任", 999999); dt.display(); return 0; }

代码中有一个小错误，修改如下：

#include<iostream>
using namespace std;

class Staff {
protected:
    string name;
    char sex;
    string birth;
    string phone;
public:
    Staff(string n, char s, string b, string p){
        name = n;
        sex = s;
        birth = b;
        phone = p;
    }
    void display(){
        cout << "姓名：" << name << endl;
        cout << "性别：" << sex << endl;
        cout << "出生日期：" << birth << endl;
        cout << "电话：" << phone << endl;
    }
};

class Date {
protected:
    int year,month,day;
public:
    Date(int yy,int mm,int dd){
        year=yy; month=mm; day=dd;
    }
    void display(){
        cout<<"生日："<<year<<"-"<<month<<"-"<<day<<endl;
    }
};

class Teacher : virtual public Staff,virtual public Date {
protected:
    string title;
public:
    Teacher(string n, char s, int yy, int mm, int dd, string p, string t) : Staff(n,s,b,p), Date(yy,mm,dd) {
        title = t;
    }
    void display(){
        Staff::display();
        Date::display();
        cout << "职称：" << title << endl;
    }
};

class Leader : virtual public Staff,virtual public Date {
protected:
    string duty;
public:
    Leader(string n, char s, int yy, int mm, int dd, string p, string d) : Staff(n,s,b,p), Date(yy,mm,dd) {
        duty = d;
    }
    void display(){
        Staff::display();
        Date::display();
        cout << "职务：" << duty << endl;
    }
};

class DbTeacher : public Teacher, public Leader {
protected:
    int salary;
public:
    DbTeacher(string n, char s, int yy, int mm, int dd, string p, string t, string d, int sal) : Staff(n,s,b,p), Date(yy,mm,dd), Teacher(n,s,yy,mm,dd,p,t), Leader(n,s,yy,mm,dd,p,d){
        salary = sal;
    }
    void display(){
        Staff::display();
        Date::display();
        cout << "职称：" << title << endl;
        cout << "职务：" << duty << endl;
        cout << "工资：" << salary << endl;
    }
};

int main() {
    DbTeacher dt("徐璞昌", 'F', 2003,5,6, "19807168041", "高级教师", "系主任", 999999);
    dt.display();
    return 0;
}

修改内容：

1. `Date` 类中的 `dispaly` 函数名拼写错误，应该改为 `display`。
2. `Teacher` 类和 `Leader` 类的构造函数中调用 `Staff` 和 `Date` 的构造函数时，缺少了第四个参数 `b`（生日）。
3. `DbTeacher` 类的构造函数中调用 `Teacher` 和 `Leader` 的构造函数时，应该传入完整参数列表。