void setup() { char my_str[6]; // an array big enough for a 5 character string Serial.begin(9600); my_str[0] = 'H'; // the string consists of 5 characters my_str[1] = 'e'; my_str[2] = 'l'; my_str[3] = 'l'; my_st
构建示例: StaticJsonDocument<200>jsonBuffer;//声明一个JsonDocument对象,长度200// 添加对象节点jsonBuffer["key1"]=123;// 整数jsonBuffer["key2"]=123.123;// 浮点数jsonBuffer["key3"]="string";// 字符串// 添加数组对象JsonArray array1=jsonBuffer.createNestedArray("array");// 添加一个 "array...
// 创建嵌套对象 JsonObject nestedObj = doc.createNestedObject("nestedObject"); // 向嵌套对象添加键值对 nestedObj["key1"] = "value1"; nestedObj["key2"] = 42; // 将JSON文档转换为字符串 String jsonString; serializeJson(doc, jsonString); // 打印JSON字符串 Serial.println(jsonString); ...
jsonBuffer["key3"] = "string"; // 字符串 // 添加数组对象 JsonArray array1 = jsonBuffer.createNestedArray("array");// 添加一个 "array" 数组 array1.add(1); // 往数组里面添加值 array1.add(1.2); // 往数组里面添加值 array1.add(-10); // 往数组里面添加值 // 对象嵌套 JsonObject...
board— Name of Arduino enabled board character vector | string array btaddress— Bluetooth address of the Nano 33 BLE, Nano 33 BLE Sense, Nano 33 IoT, MKR1010, HC-05, HC-06, ESP32-DevKitV1 or ESP32-DevKitC character vector | string array btname— Bluetooth name of the device chara...
// Function to create and send magic packet // Taken and translated from here: // https://www.logicaprogrammabile.it/wol-accendere-computer-arduino-wake-on-lan/ voidSendMagicPacket(){ //Create a 102 byte array byte magicPacket[102]; ...
'_string', '_struct', '_symtable', '_thread', '_tracemalloc', '_warnings', '_weakref', '_winapi', 'array', 'atexit', 'audioop', 'binascii', 'builtins', 'cmath', 'errno', 'faulthandler', 'gc', 'itertools', 'marshal', 'math', 'mmap', 'msvcrt', 'nt', 'parser', '...
JsonArray& datastreams = myJson.createNestedArray("datastreams"); datastreams.add(id_datapoints); char p[200]; int num = myJson.printTo(p, sizeof(p)); packet.setHostAddress(OneNetServer); packet.setDevId(device_id_temp); //device_id ...
void setup() { char my_str[6]; // an array big enough for a 5 character string Serial.begin(9600);my_str[0] = 'H'; // the string consists of 5 characters my_str[1] = 'e';my_str[2] = 'l';my_str[3] = 'l';my_str[4] = 'o';my_str[5] = 0; // 6th array ...
componentArray 是一个由四个都是字符串的元素组成的数组。JavaScript 数组中的索引从 0 开始。要访问数组的第一个元素,可以使用 componentArray[0],这将返回字符串电位计。componentArray[3]将返回字符串按钮。 | | `res.render('index', {``title: title,``components: componentArray` | 现在不是呈现一个...