第2个回答 2013-02-22
#include <stdio.h>
void swapnum(int *x, int *y);
main(int argc, char* argv[]) {
int a,b;
printf("Please input number a and number b: ");
scanf("%d %d",&a, &b);
swapnum(&a, &b);
printf("The number changed is %d, %d\n", a,b);
return 0;
}
void swapnum(int *x, int *y) {
int t;
t=*x, *x=*y, *y=t;
}本回答被网友采纳