reference:library:write
write()
描述
往所有连上服务器的客户端写入数据。数据以字节发送
语法
server.write(val) server.write(buf, len)
参数
val: 以字节发送的值
buf: 以字节发送的数组
len: 发送的长度
返回
byte write()返回写入的字节数 . 不是必须的.
例子
#include <SPI.h> #include <Ethernet.h> // network configuration. gateway and subnet are optional. // the media access control (ethernet hardware) address for the shield: byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //the IP address for the shield: byte ip[] = { 10, 0, 0, 177 }; // the router's gateway address: byte gateway[] = { 10, 0, 0, 1 }; // the subnet: byte subnet[] = { 255, 255, 0, 0 }; // telnet defaults to port 23 EthernetServer server = EthernetServer(23); void setup() { // initialize the ethernet device Ethernet.begin(mac, ip, gateway, subnet); // start listening for clients server.begin(); } void loop() { // if an incoming client connects, there will be bytes available to read: EthernetClient client = server.available(); if (client == true) { // read bytes from the incoming client and write them back // to any clients connected to the server: server.write(client.read()); } }
reference/library/write.txt · 最后更改: 2023/06/07 04:24 由 127.0.0.1