出现ld returned 1 exit status大神们能否解救我？

Question

#include
using namespace std;
class Cargo
{
private:
double weight;
double price;
public:
int no;//序号
Cargo *next;
static double totalweight;
static double totalprice;
Cargo(double weight, double price, int no){
this->no=no;
this->weight=weight;
this->price=price;
totalweight+=this->weight;
totalprice+=this->price;
}
~Cargo(){
totalweight-=weight;
totalprice-=price;
}
};
class CargoHouse
{
private:
double w;
double p;
int no;//序号
Cargo *data,*head;

public:
        CargoHouse(){
    data=head;
    head=NULL;
}
    void in(){
        cin>>w;cin>>p;cin>>no;
        Cargo *k=new Cargo(w,p,no);
        k->next=data;
        data=k;
    }
    void out(int n){
        Cargo *q=data;
        Cargo *h=head->next;
        while(h){
            if(h->no==n)
            {
                q->next=h->next;
                delete h;
            }
            else
            {
                q=h;
                h=h->next;
            }
        }
    cout<<"没有"; 
    }       

};
int main()
{
CargoHouse thing1;
thing1.in();
return 0;
}

Answer 1

如果是permission denied，请打开任务管理器，把编译出来的.exe关掉（例如编译1.cpp得到1.exe，就把1.exe关掉）