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| ////////stdafx.h
#pragma once
#include "targetver.h"
#include <stdio.h>
#include <tchar.h>
#include <iostream>
#include <string>
#include <cstdlib>
#include <ctime>
using namespace std;
#include "TCar.h"
#include "TLorry.h"
////////class TCar.h
#pragma once
class TCar
{
protected:
string name;
unsigned cylinder;
unsigned power;
public:
TCar(const string& theName, unsigned theCiliners,
unsigned thePower) throw (const char*)
: name(theName), cylinder(theCiliners), power(thePower)
{
if (name.empty())
{
throw "name is empty";
}
if (cylinder == 0)
{
throw "count cylinder can not be zero";
}
if (power == 0)
{
throw "power can not be zero";
}
}
void SetPower(unsigned thePower) throw (const char*)
{
if (thePower == 0)
{
throw "power can not be zero";
}
power = thePower;
}
unsigned GetPower() const
{
return power;
};
~TCar();
};
/////////class TLorry.h
#pragma once
#include "TCar.h"
#include "stdafx.h"
class TLorry
{
protected:
unsigned carrying;
public:
TLorry(const string& theName, unsigned theCiliners,
unsigned thePower, unsigned theCarrying) throw (const char*)
:public TCar(theName, theCiliners, thePower), carrying(theCarrying)
{
if (carrying == 0)
{
throw "carrying can not be zero";
}
}
void SetName(const string& theName) throw (const char*)
{
if (theName.empty())
{
throw "name is empty";
}
name = theName;
}
const string& GetName() const
{
return name;
}
void SetCarrying(unsigned theCarrying) throw (const char*)
{
if (theCarrying == 0)
{
throw "carrying can not be zero";
}
carrying = theCarrying;
}
unsigned GetCarrying() const
{
return carrying;
}
friend ostream& operator << (ostream& theOS, const TLorry& theLorry)
{
theOS << "name: " << theLorry.name << endl;
theOS << "cyl: " << theLorry.cylinder << endl;
theOS << "pow: " << theLorry.power << endl;
theOS << "carr: " << theLorry.carrying << endl;
return theOS;
};
TLorry* GreateLorry()
{
const char* CName[] = { "Honda", "Isuzu", "Volvo", "Kenworth", "SolexAuto" };
const unsigned CSizeName = sizeof(CName) / sizeof(*CName);
TLorry* lorry = new TLorry(CName[::rand() % CSizeName],
::rand() % 6 * 2 + 2,
::rand() % 1000 + 100,
::rand() % 1000 + 100);
return lorry;
}
~TLorry();
};
////////////////Car.cpp
#include "stdafx.h"
int _tmain(int argc, _TCHAR* argv[])
{
::srand(::time(NULL));
const unsigned CLorryCount = 5;
TLorry* lorry[CLorryCount];
try
{
for (unsigned i = 0; i < CLorryCount; ++i)
lorry[i] = GreateLorry();
lorry[0]->SetName("unknow");
lorry[0]->SetPower(1000);
lorry[0]->SetCarrying(1000);
for (unsigned i = 0; i < CLorryCount; ++i)
cout << *lorry[i] << endl;
for (unsigned i = 0; i < CLorryCount; ++i)
delete lorry[i];
}
catch (const char* err)
{
cout << "error: " << err << endl;
}
return 0;
} |
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