我想從我的 nodemcu 向本地主機(jī)服務(wù)器發(fā)送 HTTP GET 請(qǐng)求。nodemcu 和我的筆記本電腦都連接到同一個(gè) Wifi 網(wǎng)絡(luò)。雖然 nodemcu 連接到網(wǎng)絡(luò)，但它不會(huì)發(fā)送請(qǐng)求。我嘗試手動(dòng)發(fā)送請(qǐng)求并使用“郵遞員”，然后就可以了。所以我認(rèn)為問(wèn)題出在 nodemcu 代碼或設(shè)備上。歡迎任何想法。#include <ESP8266WiFi.h>#include <WiFiClient.h> #include <ESP8266WebServer.h>#include <ESP8266HTTPClient.h>/* Set these to your desired credentials. */const char *ssid = "******";  //ENTER YOUR WIFI SETTINGSconst char *password = "****";//Web/Server address to read/write from //website or IP address of server//=======================================================================//                    Power on setup//=======================================================================void setup() {  delay(1000);  Serial.begin(115200);  WiFi.mode(WIFI_OFF);        //Prevents reconnection issue (taking too long to connect)  delay(1000);  WiFi.mode(WIFI_STA);        //This line hides the viewing of ESP as wifi hotspot  WiFi.begin(ssid, password);     //Connect to your WiFi router  Serial.println("");  Serial.print("Connecting");  // Wait for connection  while (WiFi.status() != WL_CONNECTED) {    delay(500);    Serial.print(".");  }  //If connection successful show IP address in serial monitor  Serial.println("");  Serial.print("Connected to ");  Serial.println(ssid);  Serial.print("IP address: ");  Serial.println(WiFi.localIP());  //IP address assigned to your ESP}//=======================================================================//                    Main Program Loop//=======================================================================void loop() {  HTTPClient http;    //Declare object of class HTTPClient  String ADCData, station, getData, Link;  int adcvalue=253;  //Read Analog value of LDR  ADCData = String(adcvalue);   //String to interger conversion  station = "B";