单选题：有以下程序

有以下程序

#include

struct S{int n; int a[20]; };

void f(struct S *p)

{ int i,j, t;

for (i=0; in-1; i++)

for (j=i+1; jn; j++)

if (p->a[i] > p->a[j]) { t= p->a[i]; p->a[i] = p->a[j]; p->a[j] = t; }

}

main()
{ int i; struct S s={10, {2,3,1,6,8,7,5,4,10,9}};
f(&s);
for (i=0; i }

程序运行后的输出结果是


@[D](2)

A. 10,9,8,7,6,1,2,3,4,5,
B. 2,3,1,6,8,7,5,4,10,9,
C. 10,9,8,7,6,5,4,3,2,1,
D. 1,2,3,4,5,6,7,8,9,10,



A.10,9,8,7,6,1,2,3,4,5,
B. 2,3,1,6,8,7,5,4,10,9,
C.10,9,8,7,6,5,4,3,2,1,
D.1,2,3,4,5,6,7,8,9,10,


答案：D