以下程序的输出是( )。 struct st { int x;int *y; } *p; int dt[4]={10,20,30,40}; struct st aa[4]= {50,dt[0],60,dt[1],70,dt[2],80,dt[3]}; main() { p=aa; cout<<++p->x; cout<<(++p)->x; cout<<++(*p->y); }A.10 20 20B.50 60 21C.51 60 21D.60 70 31

以下程序的输出是( )。 struct st { int x;int *y; } *p; int dt[4]={10,20,30,40}; struct st aa[4]= {50,&dt[0],60,&dt[1],70,&dt[2],80,&dt[3]}; main() { p=aa; cout<<++p->x; cout<<(++p)->x; cout<<++(*p->y); }

A.10 20 20

B.50 60 21

C.51 60 21

D.60 70 31


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下面程序的输出结果为( )。struct st { int x; int*y; } *p; int dt[4]={10,20,30,40}; struct st aa[4]={ 50,dt[0],60,dt[1], 70,dt[2],80dt[3]}; main() { p=aa; printf("%d\n",++p-x); printf("%d\n",(++p)-x); printf("%d\n",++(*p-y)); }A.10 B.50 C.51 D.60 20 60 60 70 20 21 21 31

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以下程序的输出是( )。 struct st { int x;int *y; } *p; int dt[4]={10,20,30,40}; struct st aa[4]={50,dt[0],60,dt[0],60,dt[0],60,dt[0],}; main() { p=aa; cout<+<+(p->x); }A.10B.11C.51D.60

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