class test{ public: test(int s):y(s){} public: int y; double f; }; int main(int argc, char* argv[]) { test t1(20); test pa[4]={1,2,3,t1}; for(int i=0;i<4;i++) { cout<<"当前未做加法时pa["<<i<<"]="<<pa[i].y<<endl; pa[i].y+=1; } cout<<"对象t1的y值:"<<t1.y<<endl; cout<<"数组中pa[3]的值:"<<pa[3].y<<endl; return 0; }