子类强制转换为父类是不是只能转第一父类？？？？

如题 Master 继承Wizard 。Wizard继承Solider

Master[] _pGroupA=new Master[4];
Master[] _pGroupB=new Master[4];
for(int i=0;i<2;i++){
_pGroupA[i]=(Master) new Solider();
_pGroupB[i]=(Master) new Solider();
}
_pGroupA[2]=(Master)new Wizard();
_pGroupB[2]=(Master)new Wizard();
_pGroupA[3]=new Master();
_pGroupB[3]=new Master();

        编译器提示Solider cannot be cast to Master