C＋＋面向对象程序设计PPT

#include <iostream.h> class goods{ static int totalWeight; int weight; public: goods(int w){weight=w; } ~goods(){ totalWeight=totalWeight-weight; cout<<"totalWeight="<<totalWeight<<endl;} static int setTotal(){totalWeight+=weight; return totalWeight;} }; int goods::totalWeight=0; main() {goods g1(25); cout<<"totalweight ="<< g1.setTotal( )<<endl; goods g2(65); cout<<"totalweight ="<< goods::setTotal( )<<endl; }