标签：col def span wap main c++ void color nbsp
#define SWAP(t,a,b) do{ t c = a; \ a = b; b = c; }while(0); void main() { int a=1,b=2; SWAP(int,a,b); }
C/C++宏定义交换两个值
原文地址：https://www.cnblogs.com/judes/p/10230410.html
