A.int*p=new int(3);cout<<*p;delete p;

B.int*p=new int[3];for(int i=0;i<3;i++)*p++=i;delete[]p;

C.int*p=new int[3];for(int i=0;i<3;i++，p++ ){*p=i; cout<<*p;}delete[]p;

D.以上程序段均正确