intsum_func (intx,inty)//function declaration {intz =0; z= x+y ;returnz;//return the value}voidsetup () { Statements//group of statements} Void loop () {intresult =0; result= Sum_func (5,6) ;//function call} 第二种方法,称为函数定义或声明,必须在循环函数的下面声明,它包括: 函...
boolean Serial.findUntil() Description 从串行缓存中读数据直到找到目标字符串或停止符 Serial.findUntil() reads data from the serial buffer until a target string of given length or terminator string is found. The function returns true if the target string is found, false if it times out. Serial...
// get the connection id so that we can then disconnect int connectionId = esp8266.read()-48; // subtract 48 because the read() function returns // the ASCII decimal value and 0 (the first decimal number) starts at 48 esp8266.find("pin="); // advance cursor to "pin=" int pinN...
while(booleanexpression) { statement(s) } do { statement(s) } while(booleanexpression); for(initialisation;terminationcondition;incrementingexpr)10 { statement(s) } 条件语句 if(booleanexpression) { statement(s) } elseif(booleanexpression) { statement(s) } else { statement(s) } 3.3 //(单行...
uint16_t bgcolor), // For 1bpp sprites设置图像前后颜色setTextWrap(boolean wrapX, boolean wrapY)设置文本是否换行setTextDatum(uint8_t d)设置文本基准setTextPadding(uint16_t x_width)设置填充宽度，擦除原来的文字和数字getRotation(void)获取数字mgetTextDatum(void)获取文本基准width(void) //Return the...
大括号中的主要用途功能void myfunction(datatype argument) statements(s) 循环while (boolean expression) statement(s) do st 29、atement(s) while (boolean expression); for (initialisation; termination condition; incrementing expr) statement(s) 条件语句if (boolean expression) statement(s) else if (...
functiondevice_timer_init(dev)--定时发送开关灯指令--dev:timeout(0)dev:add(10,"open","open")dev:add(12,"close","close")end 找到device_data_analyze函数(在文件的最后),修改为如下内容: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ...
function device_data_analyze(dev) local t={} local a=0 local s = dev:size() -- 我们定义 一次发送 十个 字节,分别为 温度 湿度 -- add_val(t,"Temperature",a,dev:bytes(1,5)) add_val(t,"Humidity",a,dev:bytes(6,5)) dev:response() dev:send("received") return s,to_json(t) ...
你并不需要在调用analogWriteO之前为设置输入引脚而调用pin Mode () oThe analogWrite function has nothing whatsoever 33、 to do with the analog pins or the analogRead function.这个analogWrite方法与模拟引脚或者analogRead方法毫不相干SyntaxSyntax语法 analogWrite(pin, value)ParametersParameters 参数pin: the pin...
log("request sent") return temp } 因为不会使用VUE,这里引用了JQuery请求数据。 function getDataX(){ $.get("http://172.20.10.2/" , function (data, status) { console.log(data) temp=data.substr(13,5) console.log(temp) }) console.log("request sent") return temp } 最终效果如下: 0...