设有下列语句: ()表达式的值为6. struct st {int n; struct st *next;}; static struct st a[3]={ 5,a[1], 7,a[2], 9,NULL}, *p; p=a[0];A.++p->nB.(p)->nC.(*p).n++D.p++->n
设有下列语句: ()表达式的值为6. struct st {int n; struct st *next;}; static struct st a[3]={ 5,&a[1], 7,&a[2], 9,NULL}, *p; p=&a[0];
A.++p->n
B.(p)->n
C.(*p).n++
D.p++->n
参考答案和解析
int* f(int*(*fp)(int *, int)){return fp(nullptr,3); }
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