下面程序的運行結(jié)果是( )。 #include union data { int i; char c; double d; } a[2]; void main() {printf("%d\n", sizeof(a) ) ; }
A.16 B.8 C.4 D.2
以下程序段的運行結(jié)果是()。 int a[]={1, 2, 3, 4} , i, j; j=1; for(i=3; i>=0; i--) { a[i]=a[i]*j; j=j*3; } for(i=0; i<4; i++) printf("%d ", a[i]) ;
A.3 6 9 12 B.18 12 9 4 C.27 18 9 4 D.54 18 9 4
A.struct teacher {int num; int age; } teach1; B.struct {int num; int age; } teach1, teach2; C.struct {int num; int age; } teacher; struct teacher teach1; D.struct teacher {int num; int age; } ; struct teacher teach1;