有以下程序

#include <stdio.h>

void fun( int a, int b)

{ int t;

t=a; a=b; b=t;

}

main()

{ int c[10]={1,2,3,4,5,6,7,8,9,0},i;

for(i=0;i<10;i+=2) fun(c[i], c[i+1]);

for(i=0;i<10;i++) printf("%d," ,c[i]);

printf("\n");

}

程序的运行结果是

A)1,2,3,4,5,6,7,8,9,0,

B)2,1,4,3,6,5,8,7,0,9,

C)0,9,8,7,6,5,4,3,2,1,

D)0,1,2,3,4,5,6,7,8,9,