摘要： 1 #include <sys/socket.h>2 ssize_t recv(int sockfd, void *buff, size_t nbytes, int flags);3 ssize_t send(int sockfd, const void *buff, size_t nbytes, int flags);recv 和send的前3个参数等同于read和write。flags参数值为0或：flags说明recvsendMSG_DONTROUTE绕过路由表查找 •MSG_DONTWAIT仅本操作非阻塞 ••MSG_OOB 发送或接收带外数据 • •MSG_PEEK 窥看 阅读全文