有以下程序 #include<stdio.h> struct Sint n;int a[20];; void f(struct S*P) int i,j,t; for(i=0;i<p->n-1;i++) for(j=i+1;j<p->n;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<s.n;i++)printf( %d, ,s.a[i]); 程序运行后的输出结果是______。
A.1,2,3,4,5,6,7,8,9,10,
B.10,9,8,7,6,5,4,3,2,1,
C.2,3,1,6,8,7,5,4,10,9,
D.10,9,8,7,6,1,2,3,4,5,