11.9 long(长整数型) 11.10 unsigned long(无符号长整数型) 11.11 float(浮点型数) 11.12 double(双精度浮点数) 11.13 string( char array/字符串) 11.14 String object( String类) 11.15 array(数组) 十二、数据类型转换 12.1 char() 12.2 byte()
将草图另存为array_example。 更新代码,如下所示: int numbers[5]; int moreNumbers[5] = {1,2,3,4,5}; void setup() { // put your setup code here, to run once: Serial.begin(9600); } void loop() { // put your main code here, to run repeatedly: for(int i = 0; i < 5; i...
char Str2[8] = {'a', 'r', 'd', 'u', 'i', 'n', 'o'}; char Str3[8] = {'a', 'r', 'd', 'u', 'i', 'n', 'o', '\0'}; char Str4[ ] = "arduino"; char Str5[8] = "arduino"; char Str6[15] = "arduino"; 声明字符串的解释 在Str1中 声明一个没有初始化...
If the char array is smaller, it will not store the entire string, and you may encounter data loss or undefined behavior. Is using String in Arduino memory efficient? Using String can lead to memory fragmentation in long-running applications, so it’s often recommended to use char arrays for...
{ unsigned long newTime = micros(); int value = analogRead(ANALOG_PIN); vReal[i] = value; vImag[i] = 0; while (micros() < (newTime + sampling_period_us)) { yield(); } } // 计算 FFT fft.DCRemoval(); fft.Windowing(FFT_WIN_TYP_HAMMING, FFT_FORWARD); fft.Compute(FFT_...
= = = || ! ++ -- += -= *= /= 数据类型: boolean 布尔类型 2 Arduino 手册(精要版) char byte 字节类型 int unsignedint long unsignedlong float double string array void 数据类型转换: char() byte() int() long() float() 常量: HIGH|LOW 表示数字IO 口的电平,HIGH 表示高 电平(1),...
//code to run }); 线程对象在创建时自动连接到ThreadHandler。要开始执行创建的线程对象,可以调用: ThreadHandler::getInstance()->enableThreadExecution(); 推荐知识 要毫无问题地使用这个库,你应该了解一下c++,并具备一些多线程编程和线程安全方面的知识。 例程演示 这个演示项目使用ThreadHandler库创建了57个硬实...
(复合或) 范围 HIGH | LOW INPUT | OUTPUT true | false 整型常量 浮点数常量数据类型void boolean char unsigned char byte int unsigned int word long unsigned long float double string String(c++) array 数据类型转换char() byte() int() word() long() float() 变量作用域变量作用域 static (...
string right justified to dXdrawRightString(const String& string, int32_t dX, int32_t poY, uint8_t font)drawRightString(const char *string, int32_t dX, int32_t poY, uint8_t font)drawNumber(long long_num, int32_t poX, int32_t poY) //draw a long integerdrawNumber(long long_num...
问在Arduino IDE中将255以上的"String“转换为确切的"Integer”或"Long“类型ENstr := “123” // ...