哪位高手帮忙找找错，以下程序错在什么地方．实在是解决不了了．

#include<iomanip.h>
#include<string.h>

class Date{
short year;
short month;
short day;
public:
Date();
Date(int y,int m,int d):year(y),month(m),day(d){}
void show(){cout<<year<<'.'<<month<<'.'<<day;}
};
class Staff{
char staffNo[5];
char name[10];
char sex;
Date birthDay;
public:
Staff();
Staff(const char st-no[],const char st-name[],char st-sex,const Date &st-date):birthDay(st-date),sex(st-sex)
{ strncpy(staffNo,st-no,4);
strncpy(name,st-name,9);
}
void show()
{
cout<<endl<<setw(5)<<staffNo
<<setw(10)<<name
<<setw(3)<<sex;
birthDay.show();
}};

Date::Date()
{
cout<<endl<<"请输入年月日：";
cin>>year>>month>>day;
cin.ignore(80,'\n');
}

Staff::Staff()
{cout.setf(ios::left,ios::adjustfield);
cout<<endl<<"请输入职工号：";
cin.getline(staffNo,5);
cin.ignore(80,'\n');

cout<<endl<<"请输入姓名：";
cin.getline(name,10);
cin.ignore(80,'\n');

cout<<endl<<"请输入性别：";
cin>>sex;
cin.ignore(80,'\n');}

void main()
{Staff ss[4];
for(int i=0;i<4;i++)ss[i].show();}

#include<iomanip.h>
#include<string.h>

class Date{
short year;
short month;
short day;
public:
Date();
Date(int y,int m,int d):year(y),month(m),day(d){}
void show(){cout<<year<<'.'<<month<<'.'<<day;}
};
class Staff{
char staffNo[5];
char name[10];
char sex;
Date birthDay;
public:
Staff();
Staff(const char st_no[], /*不能把减号当作下划线,以下等同*/
const char st_name[],
char st_sex,
const Date &st_date)
:birthDay(st_date),sex(st_sex)
{ strncpy(staffNo,st_no,4);
strncpy(name,st_name,9);
}
void show()
{
cout<<endl<<setw(5)<<staffNo
<<setw(10)<<name
<<setw(3)<<sex;
birthDay.show();
}};

Date::Date()
{
cout<<endl<<"请输入年月日：";
cin>>year>>month>>day;
cin.ignore(80,'\n');
}

Staff::Staff()
{cout.setf(ios::left,ios::adjustfield);
cout<<endl<<"请输入职工号：";
cin.getline(staffNo,5);
cin.ignore(80,'\n');

cout<<endl<<"请输入姓名：";
cin.getline(name,10);
cin.ignore(80,'\n');

cout<<endl<<"请输入性别：";
cin>>sex;
cin.ignore(80,'\n');}

void main()
{Staff ss[4];
for(int i=0;i<4;i++)ss[i].show();}