en:reference:language:return
return
Terminate a function and return a value from a function to the calling function, if desired.
Syntax:
return; return value; // both forms are valid
Parameters
value: any variable or constant type
Examples:
A function to compare a sensor input to a threshold
int checkSensor(){ if (analogRead(0) > 400) { return 1; else{ return 0; } }
The return keyword is handy to test a section of code without having to “comment out” large sections of possibly buggy code.
void loop(){ // brilliant code idea to test here return; // the rest of a dysfunctional sketch here // this code will never be executed }
en/reference/language/return.txt · 最后更改: 2023/06/07 04:23 由 127.0.0.1