c++多态继承方面的程序找不到错误原因

vc不报错，程序正常运行。但是没有结果给出来。
用F11进行逐行调试过程中也直接跳了进不去函数
刚开始学有点蒙，有人能告诉我代码有什么问题或者如何进入逐行调试嘛

#include<iostream>
using namespace std;

class CPU
{
public:
    virtual void calculate() = 0;
};

class Videocard
{
public:
    virtual void display() = 0;
};

class Memary
{
public:
    virtual void storage() = 0;
};

class computer
{
public:
    computer(CPU* cpu, Videocard* vc, Memary* mem)
    {
        m_cpu = cpu;
        vdcard = vc;
        m_mem = mem;
    }

    void work()
    {
        m_cpu->calculate();
        vdcard->display();
        m_mem->storage();
    }
private:
    CPU* m_cpu;
    Videocard* vdcard;
    Memary* m_mem;
};

class intelcpu :public CPU
{
public:
    virtual void calculate()
    {
        cout << "intel的cpu开始计算了" << endl;
    }

};

class levoncpu :public CPU
{
public:
    virtual void calculate()
    {
        cout << "levon的cpu开始工作了" << endl;
    }

};

class intelvc :public Videocard
{
public:
    virtual void display()
    {
        cout << "intel的显卡开始计算了" << endl;
    }

};

class levonvc :public Videocard
{
public:
    virtual void display()
    {
        cout << "levon的显卡开始工作了" << endl;
    }

};


class intelmem :public Memary
{
public:
    virtual void storage()
    {
        cout << "intel的内存开始计算了" << endl;
    }

};

class levonmem :public Memary
{
public:
    virtual void storage()
    {
        cout << "levon的显卡开始工作了" << endl;
    }

};

void test01()
{
    CPU* i_c = new intelcpu;
    Videocard* i_v = new intelvc;
    Memary* i_m = new intelmem;

    computer* icom = new computer(i_c, i_v, i_m);
    icom->work();
    delete icom;
}


int main()
{
    void test01();
    return 0;
}

void test01改为test01();

楼上说得对，我补充一点，一般的，继承时，当派生类有指针成员时，当然你这里没有，但可能以后会加，所以基类最好加上虚析构函数，不然多态（基类指针指向子类对象）时无法调用子类析构函数，导致无法析构子类从而出现内存泄漏。
即

class CPU
{
public:
    virtual void calculate() = 0;
    virtual ~CPU(){}
};
 
class Videocard
{
public:
    virtual void display() = 0;
    virtual ~Videocard(){}
};
 
class Memary
{
public:
    virtual void storage() = 0;
    virtual ~Memary(){}
};
 
class computer
{
public:
    computer(CPU* cpu, Videocard* vc, Memary* mem);
    virtual ~computer(){}
}