}voidappendCharsTo(SafeString&strIn) {//pass strIn as a reference &strIn +="some more text";//this does all the bounds checksSerial.print("appendCharsTo returns:"); Serial.println(strIn); }voidloop() { Serial.println("--- start of loop()");charstr1[24] ="some str1";//allow ...
问Arduino:将char数组连接到字符串EN使用String.valueOf()将字符数组转换成字符串 void (){ char[]...
// convert the incoming byte to a char // and add it to the string: inString += (char)inChar; } // if you get a newline, print the string, // then the string's value: if (inChar == '\n') { Serial.print("Value:"); Serial.println(inString.toInt()); Serial.print("Str...
String stringOne = String('a'); // converting a constant char into a String String stringTwo = String("This is a string"); // converting a constant string into a String object String stringOne = String(stringTwo + " with more"); // concatenating two strings String stringOne = String...
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 ...
char mostSignificantDigit = reportString.charAt(15); String message = "Most significant digit of the sensor reading is: "; Serial.println(message + mostSignificantDigit); // add blank space: Serial.println(); // you can alo set the character of a string. Change the : to a = character...
void setup() { char str[] = "This is my string"; // create a string char out_str[40]; // output from string functions placed here int num; // general purpose integer Serial.begin(9600); // (1) print the string Serial.println(str); // (2) get the length of the string (exc...
12、string类型 两种表现形式:字符串数据类型,做一个字符串,由char类型的字符数组加空终止符(\0)构成,定义字符串时有多种方式: 1、只声明:char Str1[15] //该字符串中只能存储14个字符,不要忘了终止符(\0),以下一样 2、潜定义:char Str2[8] = {'a', 'r', 'd', 'u', 'i', 'n', 'o'...
char(有号数据类型) unsignedchar(无符号数据类型) byte(无符号数) int(整型) unsignedint(无符号整型) word long(长整数型) unsignedlong(无符号长整数型) float(浮点型数) double(双精度浮点数) string(chararray/字符串) String object(String类) array(数组) 十二、数据类型转换 char() byte()12.3int()...
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() 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) ...