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++ (incrément)
Description
Incrémente une variable
Syntaxe
x++; // incrémente x de un, sans modifier x
++x; // incrémente x de un et modifie x
Paramètres
- x: une valeur entière de type int ou long, (pouvant être unsigned)
Valeurs Renvoyées
- La valeur de x ou la nouvelle valeur incrémentée de la variable.
Exemple
Exemple 1
void setup() {
Serial.begin(9600);
int x = 2;
int y = ++x; // x contient 3 et y contient 3
Serial.print("x = ");
Serial.println(x);
Serial.print("y = ");
Serial.println(y);
}
void loop() {
}
The result on Serial Monitor:
COM6
x = 3
y = 3
Autoscroll
Clear output
9600 baud
Newline
Exemple 2
void setup() {
Serial.begin(9600);
int x = 2;
int y = x++; // x contient 3, y contient 2
Serial.print("x = ");
Serial.println(x);
Serial.print("y = ");
Serial.println(y);
}
void loop() {
}
The result on Serial Monitor:
COM6
x = 3
y = 2
Autoscroll
Clear output
9600 baud
Newline
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