/*
String Case changes
Examples of how to change the case of a String
created 27 Jul 2010
modified 2 Apr 2012
by Tom Igoe
This example code is in the public domain.
https://www.arduino.cc/en/Tutorial/BuiltInExamples/StringCaseChanges
*/
特に何もしていません。
setup()
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voidsetup(){// Open serial communications and wait for port to open:
Serial.begin(9600);while(!Serial){;// wait for serial port to connect. Needed for native USB port only
}// send an intro:
Serial.println("\n\nString case changes:");Serial.println();}
voidloop(){// toUpperCase() changes all letters to upper case:
StringstringOne="<html><head><body>";Serial.println(stringOne);stringOne.toUpperCase();Serial.println(stringOne);// toLowerCase() changes all letters to lower case:
StringstringTwo="</BODY></HTML>";Serial.println(stringTwo);stringTwo.toLowerCase();Serial.println(stringTwo);// do nothing while true:
while(true);}