[Control Structures]
描述
Terminate a function and return a value from a function to the calling function, if desired.
語法
return; return value;
參數
value
: Allowed data types: any variable or constant type.
範例程式碼
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 }
參考
- [Language] comments
語法參考主頁面
86Duino 參考的文本是根據 Creative Commons Attribution-ShareAlike 3.0 License,部分文本是從 the Arduino reference 修改的。 參考中的代碼示例已發佈到公共領域。