c++qiujieda。。

代码如下，如有帮助，请采纳一下，谢谢。

#include <iostream>
using namespace std;
class shang_stock;
class shen_stock
{
private:
	int general;
	int st;
	int pt;
public:
	shen_stock(){general = 0; st = 0; pt = 0;}
	shen_stock(int g,int s,int p):general(g),st(s),pt(p){}
	friend int caculate(shen_stock sz);
	friend int count(shen_stock &sz,shang_stock &sh);
};

class shang_stock
{
private:
	int general;
	int st;
	int pt;
public:
	shang_stock(){general = 0; st = 0; pt = 0;}
	shang_stock(int g,int s,int p):general(g),st(s),pt(p){}
	friend int caculate(shang_stock sh);
	friend int count(shen_stock &sz,shang_stock &sh);
};
int caculate(shen_stock sz)
{
	return sz.general + sz.st + sz.pt;
}
int caculate(shang_stock sh)
{
	return sh.general + sh.st + sh.pt;
}
int count(shen_stock &sz,shang_stock &sh)
{
	return caculate(sz) + caculate(sh);
}
int main()
{
	shen_stock sz(1000,28,30);
	shang_stock sh(2000,40,60);
	cout << "total number of shen_stock = " << caculate(sz) << endl;
	cout << "total number of shang_stock = " << caculate(sh) << endl;
	cout << "total number of shen_stock and shang_stock = " << count(sz,sh);
	return 0;
}