设有如下代码：
interface IFace{}
class CFace implements IFace{}
class Base{}
public class ObRef extends Base{
public static void main(String argv[]){
ObRef obj = new ObRef();
Base b = new Base();
Object obj1 = new Object();
IFace obj2 = new CFace();
//Here
}
}
则在 //Here处插入哪个代码将不出现编译和运行错误。
多选题 2019-04-19 20:21:09
0553 A.obj1=obj2;
B.b=obj;
C.obj=b;
D.obj1=b;
参考答案：…… 查看答案
