这样的宏定义是什么意思???
#define FUN_PARA_FLAG_TCP_SERVER (1<<1)
#define FUN_PARA_FLAG_LOW_PWR (1<<2)
#define SOCK_CTRL_FLAG_SOCKET_CLOSE (1<<3)
#define SOCK_DISABLE_SEND_OK_INT (1<<4)
而后在程序中有个子函数是这么用的:
guanyuran(FUN_PARA_FLAG_TCP_SERVER | SOCK_CTRL_FLAG_SOCKET_CLOSE) ;
请问这又如何理解????? |