String comdata = "";//存放接收到的原始字符串 String buf1="";//存放解析出的第一个字符串 Str...
stringOne += 123456789; Serial.println(stringOne); // prints "A long integer: 123456789" // using concat() to add a long variable to a string: stringTwo.concat(millis()); Serial.println(stringTwo); // prints "The millis(): 43534" or whatever the value of the millis() is // do ...
命令variable.toUppercase()用于将小写字符更改为大写。 然后它根据每个角色创造声音。 void loop() { char inChar = 0; char inData[100] = ""; // data length of 6 characters String variable = ""; String variable1 = ""; int index1 = 0; if ( Serial.available() > 0 ) { while (Serial...
void serialEvent (Serial myPort) { // starts reading data from the Serial Port // reads the data from the Serial Port up to the character ‘。’ and puts it into the String variable “data”。 data = myPort.readStringUntil(‘。’); data = data.substring(0,data.length()-1); index...
StringAppendOperator StringLengthTrim StringCaseChanges StringReplace StringCharacters StringStartsWithEndsWith StringComparisonOperators StringSubstring array -(数组) Arrays(数组) 数组是一种可访问的变量的集合。Arduino的数组是基于C语言的,因此这会变得很复杂,但使用简单的数组是比较简单的。
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() 12.3int() 12.4 word() 12.5 long() 12.6 float() 十三、变量作用域&修饰符 13.1 variable scope(变量的作用域) 13.2 static(静态变量) 13.3 volatile ...
用@string/app_name引用的应用名称将取自res/values文件夹中strings.xml文件中定义的字符串。相同的资源查找语法适用于 drawables 和您将在任何 xml 文件中看到的所有其他资源。 在应用节点中,您定义了所有的活动、服务、内容提供者和广播接收者。到目前为止,清单中只声明了一项活动。看看那个。name属性必须是活动的...
{ //buff经过传输,尾部有干扰,故用两个空格分割 String temp1,temp2; String string = String(buff); int postion = string.indexOf(" "); temp1 = string.substring(0,postion); string = string.substring(postion+1,string.length()); postion = postion = string.indexOf(" "); temp2 = string....
// reads the data from the Serial Port up to the character '.' and puts it into the String variable "data". data = myPort.readStringUntil('.'); data = data.substring(0,data.length()-1);index1 = data.indexOf(","); // find the character ',' and puts it into the variable "...
void extractLetters(String words) { words.concat('@'); // Placeing @ at the end of word to simplify further processing endPos = words.indexOf('@'); //Loop to extracting single character morse Code from string of word while (endPos < words.length()) { ...