#include<stdio.h>
#define exchange(a,b){
int t;
t=a;
a=b;
b=t;
}
int main(int arge,char *argv)
{
int a=2,b=3;
printf("交换前a=%d,b=%d",a,b);
exchange(a,b);
printf("交换后a=%d,b=%d",a,b);
return 0;
}
#include<stdio.h>
#define exchange(a,b){
int t;
t=a;
a=b;
b=t;
}
int main(int arge,char *argv)
{
int a=2,b=3;
printf("交换前a=%d,b=%d",a,b);
exchange(a,b);
printf("交换后a=%d,b=%d",a,b);
return 0;
}