+=

[Compound Operators]

描述

This is a convenient shorthand to perform addition on a variable with another constant or variable.

語法

x += y; // equivalent to the expression x = x + y;

參數

X: variable. Allowed data types: int, float, double, byte, short, long.
y: variable or constant. Allowed data types: int, float, double, byte, short, long.

Example Code

x = 2;
x += 4; // x now contains 6

參考

• [Language] Normal Addition

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。