关于静态对象构造

#include<iostream.h>
#include<conio.h>
class Sample
{
        int x;
        public:
        Sample(int a)
        {
                x=a;
                cout<<"constructing object:x="<<x<<endl;
        }
}; 

void func(int n) 
{
        static Sample obj(n);
}

int main()
{
        func(1);
        func(10);
        getchar();
        return 0;
}
//--------------------------------------------------------------------------