Question

c++中类中类的继承与派生问题，报错为 error C2504: 'employee' : base class undefined

程序为
#include<iostream>
using namespace std;
#include<string.h>

class employee
{
protected:
char number[50];
char name[30];
char sexity[10];
char position[30];
double wage;
class Date
{
private:
int year;
int month;
int day;
public:
void SetYear(int year)
{
this->year=year;
}
void SetMonth(int month)
{
this->month=month;
}
void SetDay(int day)
{
this->day=day;
}
int GetYear()
{
return year;
}
int GetMonth()
{
return month;
}
int GetDay()
{
return day;
}
};
public:
employee(char* number,char* name,char* sexity,char* position,int year,int month,int day)
{
strcpy(this->number,number);
strcpy(this->name,name);
strcpy(this->sexity,sexity);
strcpy(this->position,position);
Date::SetYear(year);
Date::SetMonth(month);
Date::SetDay(day);
}
employee()
{
number=0;
name=jiangwei;
sexity=male;
position=employee;
wage=1500;
Date::year=1994;
Date::month=7;
Date::day=28;
}
employee(char* number=0,char* name="jiangwei",char* sexity="male",char* position="employee",int year=1994,int month=7,int day=28,double wage=0)
{
strcpy(this->number,number);
strcpy(this->name,name);
strcpy(this->sexity,sexity);
strcpy(this->position,position);
Date::SetYear(year);
Date::SetMonth(month);
Date::SetDay(day);
};

class technician : public employee
{
protected:
double worktime;
public:
technician(char* number,char* name,char* sexity,char* position,double worktime,int year,int month,int day) : employee(number,name,sexity,position,Date::year,Date::month,Date::day)
{
this->worktime=worktime;
}
void display()
{
wage=25*worktime;
cout<<"wage:"<<wage<<endl;
}
};

void main()
{
technian p1("123456","weng","male","director",8,1994,7,28);
p1.show();
}

若以下回答无法解决问题，邀请你更新回答

Answer 1

没有见到
class employee？

你的这个类呢？？

追问

第一个不就是么？

追答

oh 看到了，原来你在一个类的内部又写了一个类。

employee(char* number=0,char* name="jiangwei",char* sexity="male",char* position="employee",int year=1994,int month=7,int day=28,double wage=0)
{
strcpy(this->number,number);
strcpy(this->name,name);
strcpy(this->sexity,sexity);
strcpy(this->position,position);
Date::SetYear(year);
Date::SetMonth(month);
Date::SetDay(day);
}; //这里是否缺少一个 } 上面的employee这个构造函数结束的}呢？

追问

我刚刚看到了，，然后加上去了，，然后你看运行结果，，我当时就哭了，，这个怎么回事额

追答

错误很多吗？？看上面我粘贴的那个函数就不少。
Date::SetYear(year);
Date::SetMonth(month);
Date::SetDay(day);
这个到底想怎么使用的？？