有以下程序段:struct st{ int x; int * y; } * pt;int a[] = {1,2} ,b[] = {3,4};struct st c[2]
有以下程序段: struct st { int x; int * y; } * pt; int a[] = {1,2} ,b[] = {3,4}; struct st c[2] = {10,a,20,b}; pt=c; 以下选项中表达式的值为11的是()。
A.*pt->y
B.pt->x
C.++pt->x
D.(pt++)->x