struct Date { int month;? int day; int year; }; struct Student { int num;? char name[20]; char sex; int age; struct Date birthday; float score; }stu; sizeof(stu)的值是()
A.45 B.48 C.37 D.40
A.2的n次方 B.2的n次方-1 C.2的n次方+1 D.2*n-1
下面程序執(zhí)行后,輸出的結(jié)果是() #include ""stdio.h"" void fun() { int i=7; while(i<=27) { printf(“%d “,i); i+=7; } } main() { fun(); }
A.7 14 21 B.7 14 C.7 17 D.7 17 27