税务系统.cpp

一个税务系统的简单程序

#include <iostream.h>
#include<string.h>
struct   A
{
	int n;
	char s[15];
	double money;
};
class  mode1
{
public:
	virtual void settaxinformation()=0;
	virtual double gettaxinformation(){return 0.00;}
};
class person:public mode1
{
public:
	person();
	virtual void settaxinformation();
	virtual double gettaxinformation();
private:
	A pb[100];
};
person::person()
{
	int i ;
	for(i=0;i<100;i++)
	{
		pb[i].n=i;
        pb[i].money=0;
	}
}
void person::settaxinformation()
{
	int i;
	cout<<"请输入纳税人的编号(1~100):";
	cin>>i;
	while(i<0||i>99)
	{cout<<"您的上次输入不合法，请再次输入纳税人的编号(1~100):";
	 cin>>i;
	}
	cout<<"请输入纳税人姓名(15个字母以内）:";
	cin>>pb[i].s;
	cout<<"请输入工资数:";
	cin>>pb[i].money;
}
double person::gettaxinformation()
{
	int i;
	cout<<"请输入纳税人的编号 :";
	cin>>i;
	if(pb[i].money<=500)
	{
     cout<<"姓名 :"<<pb[i].s<<endl;
	 cout<<"应纳税 :"<<pb[i].money*0.02<<"元"<<endl;
	}
	else
	{
      cout<<"姓名 :"<<pb[i].s<<endl;
	 cout<<"应纳税 :"<<pb[i].money*0.05<<"元"<<endl;
	}
	return 0.00;
}
class business:public mode1
{
public:
	business();
	virtual void settaxinformation();
	virtual double gettaxinformation();
private:
	A pb[100];
};
business::business()
{
	int i;
	for(i=0;i<100;i++)
	{
		pb[i].n=i;
		pb[i].money=0;
	}
}
void business::settaxinformation()
{
	int i;
	cout<<"请输入个体经营户的编号:";
	cin>>i;
	while(i<0||i>99)
	{cout<<"您的上次输入不合法，请再次输入个体经营户的编号:";
	 cin>>i;
	}
	cout<<"请输入个体经营户的户名(15个字母以内） :";
	cin>>pb[i].s;
	cout<<"请输入其营业利润:";
	cin>>pb[i].money;
}
double business::gettaxinformation()
{
	int i;
	cout<<"请输入要纳税的个体经营户的编号 :";
	cin>>i;
	if(pb[i].money<=500)
	{
     cout<<"户名 :"<<pb[i].s<<endl;
	 cout<<"应纳税 :"<<pb[i].money*0.15<<"元"<<endl;
	}
	else
	{
      cout<<"户名 :"<<pb[i].s<<endl;
	  cout<<"应纳税 :"<<pb[i].money*0.17<<"元"<<endl;
	}
	return 0.00;
}
int main()
{
	int i;
	business  b;
	person    p;
	cout<<"1.个人"<<endl;
	cout<<"2.个体经营户"<<endl;
	cout<<"0.不执行任何操作"<<endl<<endl;
	cout<<"请输入纳税人的种类:";
	cin>>i;
	while(i)
	{
		switch(i)
		{
		case 0:break;
		case 1:int x;
			cout<<endl;
			cout<<"1.输入纳税人信息"<<endl;
			cout<<"2.得出纳税额"<<endl;
			cout<<"0.不执行任何操作"<<endl<<endl;
			cout<<"请输入你要执行的操作编号:";
			cin>>x;
			while(x>=1&&x<<2&&x!=0)
			{
				if(x==0)
					break;
				if(x==1)
					p.settaxinformation();
				if(x==2)
					p.gettaxinformation();
				cout<<endl;
				cout<<"1.输入纳税人信息"<<endl;
				cout<<"2.得出纳税额"<<endl;
				cout<<"0.不执行任何操作"<<endl<<endl;
				cout<<"请输入你下一步要执行的操作:";
				cin>>x;
			}
			break;
		case 2:int y;
			cout<<endl;
        	cout<<"1.输入个体经营户信息"<<endl;
			cout<<"2.得出纳税额"<<endl;
			cout<<"0.不执行任何操作"<<endl<<endl;
			cout<<"请输入你要执行的操作编号:";
			cin>>y;
			while(y>=1&&y<<2&&y!=0)
			{
				if(y==0)
					break;
				if(y==1)
					b.settaxinformation();
				if(y==2)
					b.gettaxinformation();
				cout<<endl;
				cout<<"1.输入个体经营户信息"<<endl;
				cout<<"2.得出纳税额"<<endl;
				cout<<"0.不执行任何操作"<<endl<<endl;
				cout<<"请输入你下一步要执行的操作:";
				cin>>y;
			}
			break;
		default:cout<<"错误"<<endl;
		}
		cout<<endl;
		cout<<"1.个人"<<endl;
	    cout<<"2.个体经营户"<<endl;
	    cout<<"0.不执行任何操作"<<endl<<endl;
	    cout<<"请输入纳税人的种类:";
		cin>>i;
	}
	return 0;
}