String.length()

설명

스트링의 길이를 반환(이것은 뒤따라오는 널 문자를 포함하지 않음을 주의)

문법

myString.length()

매개변수

  • myString: 스트링 형 변수

반환값

  • 문자안의 스트링의 길이

예제 코드

void setup() { Serial.begin(9600); String myString = "Arduino"; int length = myString.length(); Serial.println(length); } void loop() { }

시리얼 모니터에 결과:

COM6
Send
7
Autoscroll Show timestamp
Clear output
9600 baud  
Newline  

※ 주의 및 경고:

If the string is modified, it is highly recommended using String.reserve() to prevent the memory fragmentation issue

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