方法一:使用函数实现两个数的交换
#include<stdio.h> int fun(int *a,int *b) { int tmp; tmp=*a; *a=*b; *b=tmp; } int main() { int x,y; printf("please input two number:\n"); scanf("%d %d",&x,&y); printf("x=%d,y=%d\n",x,y); fun(&x,&y); printf("x=%d,y=%d\n",x,y); return 0; }
2.
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