//使用中间变量#include void swap(int a,int b){int t=a;a=b;b=t;printf("a=%d\n",a);printf("b=%d\n",b);}//不使用中间变量#include void swap(int a,int b){a=a^b;b=b^a;a=a^b;printf("a=%d\n",a);printf("b=%d\n...