#include<ESP8266WiFi.h>
// wifi参数
const char* ssid = "mcwx999";
const char* password = "xm90919595cwj";
// Host
const char* host = “www.baidu.com”;
void setup(){
Serial.begin(115200);// 波特率
Serial.println();
Serial.println("Connecting....");
Serial.println(ssid);
WiFi.println(ssid,password);
// 这里是C语言的问题
while(WiFi.status()!=WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println(WiFi.localIP());
}
int value = 0;
void loop(){
Serial.println(" connected to");
Serial.println(host);
WiFiClient client;
const int httpPort = 80;
if(!client.connect(host,httport)){
Serial.println("connection failed");
return;
}
//Print data to the server that a client is connected to. Prints numbers as a sequence of digits, each an ASCII character (e.g. the number 123 is sent as the three characters '1', '2', '3').
client.print(String("GET/")+"HTTP/1.1\r\n"+"Host:"+host+"/r/n"+"Connection: close\r\n\r\n");
delay(50);
while(client.available()){
String line = client.readStringUntil('\r');
Serial.print(line);
}
Serial.println();
Serial.println("closing connection");
delay(5000);
}
这个程序是链接某网站,并且通过串口打印。
1. 这个httpPort是瞎写的吗,还是说是能够查到。
2.WiFiClient我在Arduino的官网上查了一下,WifiLibrary下的一个子类,为什么这里会出现 WiFiClient client; 这样一条命令,我在这个类中并没有看到client.readStringUntil('\r');
3. String(“GET/”), 这个是什么样的操作。