5.1静态数据成员 ■输出: ■HUMAN:total:=O sizeof(int)=4 ■sizeof(x)=16 ■sizeof(HUMAN)=16 HUMAN:total=1 x.total=1 HUMAN:total=2 x.total=2 y.total=25.1 静态数据成员 输出: HUMAN::total=0 sizeof(int)=4 sizeof(x)=16 sizeof(HUMAN)=16 HUMAN::total=1 x.total=1 HUMAN::total=2 x.total=2 y.total=2