输出问题
下面的输出结果怎么会跟我想的不一样,请指教!!

C/C++ code

#include<stdio.h> void fnSwap( int *x, int *y )//利用栈基本操作，完成x,y的交换{       int temp;    printf("交换前\nx=%d,y=%d",*x,*y);    temp = *x;    *x = *y;    *y = temp;    printf("\n交换后\nx=%d,y=%d",*x,*y);}void main(){    int c,d;    char b;    while(1)        {          printf("请输入两个要交换的数\n");      scanf("%d",&c);      scanf("%d",&d);          fnSwap( &c, &d );      printf("要继续请按任意键,返回主菜单请按n:\n");      scanf("%c",&b);      if ( b == 'n' )              break;                           }}

C/C++ code

//不加也可以，按我下面的做行了。可能看了就也明白了的。#include<stdio.h> void fnSwap( int *x, int *y )//利用栈基本操作，完成x,y的交换 {     int temp;     printf("交换前\nx=%d,y=%d",*x,*y);    temp = *x;     *x = *y;     *y = temp;     printf("\n交换后\nx=%d,y=%d",*x,*y); } int main() {     int c,d;     char b;     while(1)     {         printf("请输入两个要交换的数\n");         scanf("%d",&c);         scanf("%d",&d);         fnSwap( &c, &d );         printf("要继续请按任意键,返回主菜单请按n:\n");         fflush(stdin);        scanf("%c",&b);         if ( b == 'n' )             break;     }     return 0;}