请教一下该如何VC中把下列的程序分离类定义和主函数

Question

#include <iostream>
using std::endl;
using std::cout;

class Date{
public:
void Display();
void AddOneDay();
void SetDay(int y,int m,int d);
protected:
bool Legal(int y, int m, int d);
bool IsLeapYear(int y);
int year;
int month;
int day;
};

void Date::Display()
{
cout <<day <<"/" <<month <<"/" <<year <<endl;
}

void Date::AddOneDay()
{
if(Legal(year,month,day+1))
day++;
else if(Legal(year,month+1,1))
month++,day=1;
else if(Legal(year+1,1,1))
day=1,month=1,year++;
}

void Date::SetDay(int y, int m, int d)
{
if(Legal(y,m,d))
day=d, month=m, year=y;
}

bool Date::Legal(int y, int m, int d)
{
if(y>9999||y<1||d<1||m<1||m>12)
return false;

int dayLimit=31;
switch(m) case 4: case 6: case 9: case 11: dayLimit--;
if(m==2) dayLimit = IsLeapYear(y) ? 29 : 28;

return (d>dayLimit)? false : true;
}

bool Date::IsLeapYear(int y)
{
return !(y%4)&&(y%100)||!(y%400);
}
int main()
{
Date today;
today.SetDay(2008,10,07);
today.Display();
today.AddOneDay();
today.Display();
return 0;
}
请把具体的步骤清楚,特别是把建立date.h的过程,并能够运行的.
我已经这样做过了,但是不行.能不能把具体步骤讲详细一点.

Answer 1

class Date{public:void Display();void AddOneDay();void SetDay(int y,int m,int d);protected:bool Legal(int y, int m, int d);bool IsLeapYear(int y);int year;int month;int day;};把你的程序里面上述内容剪切出来，放到data.h里面。然后把现在这个文件叫做data.cpp，里面加上#include "data.h"。最后把int main(){Date today;today.SetDay(2008,10,07);today.Display();today.AddOneDay();today.Display();return 0;}剪切出来，发到test.cpp里面，再在test.cpp里面加上#include "data.h"，3个文件放在同一目录下应该就可以了

Answer 2

新建一个date.h然后把代码拷进去.最后在这个文件里面#include "date.h"就可以了啊