isUpperCase()
설명
문자가 대문자인지 분석합니다. thisChar가 대문자면 true를 반환합니다.
문법
isUpperCase(thisChar)
매개변수
- thisChar: 변수. 허용되는 자료형: char
반환값
- thisChar가 대문자면 true를, 아니라면 false를 반환합니다
예제 코드
char myChar;
void setup() {
Serial.begin(9600);
myChar = 'A';
Serial.print(myChar);
Serial.print(": ");
if (isUpperCase(myChar)) // tests if myChar is an upper case letter
Serial.println("The character is upper case");
else
Serial.println("The character is not upper case");
myChar = 'a';
Serial.print(myChar);
Serial.print(": ");
if (isUpperCase(myChar)) // tests if myChar is an upper case letter
Serial.println("The character is upper case");
else
Serial.println("The character is not upper case");
}
void loop() {}
The result in Serial Monitor:
8
Serial.println("Hello World!");
Message (Enter to send message to 'Arduino Uno' on 'COM15')
New Line
9600 baud
A: The character is upper case
a: The character is not upper case
더보기
- 언어 : isAlpha()
- 언어 : isAlphaNumeric()
- 언어 : isAscii()
- 언어 : isControl()
- 언어 : isDigit()
- 언어 : isGraph()
- 언어 : isHexadecimalDigit()
- 언어 : isLowerCase()
- 언어 : isPrintable()
- 언어 : isPunct()
- 언어 : isSpace()
- 언어 : isWhitespace()
- 언어 : char
- 언어 : read()
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