题解 | #按照格式输入并交换输出#

#include <stdio.h>
//一
int choose(int *a,int *b)
{
    int t = 0;
    t = *a;
    *a = *b;
    *b = t;
    return (*a,*b);

}
int main() 
{
    int a = 0,b = 0;
    scanf("a=%d,b=%d",&a,&b);
    int i = choose(&a,&b);
    
    printf("a=%d,b=%d\n",a,b);
    return 0;
}
//二
/*int main() 
{
    int a = 0,b = 0;
    scanf("a=%d,b=%d",&a,&b);
    int i = 0;
    i = a;
    a = b;
    b = i;
    printf("a=%d,b=%d\n",a,b);
    return 0;
    }*/