#include <stdio.h>
void my_hanshu(char *p,char*q)
{
char t=*p;
*p=*q;
*q=t;
}
void main()
{
char a,b;
printf("输入两个数\n");
scanf("%c,%c",&a,&b);
my_hanshu(&a,&b);
printf("%c,%c\n",a,b);
}本文出自 “乘法口诀” 博客，请务必保留此出处http://10706002.blog.51cto.com/10696002/1710595
原文：http://10706002.blog.51cto.com/10696002/1710595