#include<iostream>
#include<conio>
using namespace std；

class Price
{
public:
    float rm;

    Price()
    {
    }
    Price(float r)
    {
        rm=r;
    }
    Price operator + (Price);
    void accept()
    {
        cout<<"\nEnter price:RM ";
        cin>>rm;
    }

    void display()
    {
        cout<<"\n";
        cout<<"Price:RM "<<rm;
        cout<<"\n";
    }

    void total()
    {
        cout<<"\n";
        cout<<"Total price:RM "<<rm;
        cout<<"\n";
    }
};

Linking...
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/exxer 5.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

exxer 5.exe - 2 error(s), 0 warning(s)

可以帮我修改吗？刚学编程谢谢