按钮

V5 控制器上可用的按钮如下：

V5 控制器
ButtonA - The A button. ButtonB - The B button. ButtonX - The X button. ButtonY - The Y button. ButtonDown - The Down button. ButtonUp - The Up button. ButtonLeft - The Left button. ButtonRight - The Right button. ButtonL1 - The L1 button. ButtonL2 - The L2 button. ButtonR1 - The R1 button. ButtonR2 - The R2 button.

按下()

The pressed(callback) method registers a function to be called when a button is pressed.

范围	描述
callback	按下按钮时调用的函数。

**返回：**事件类的一个实例。

// Define the buttonPressed function with a void return
// type, showing it doesn't return a value.
void buttonPressed() {
  // The Brain will print that a controller button was
  // pressed on the Brain's screen.
  Brain.Screen.print("controller button pressed");
}

int main() {
  // Initializing Robot Configuration. DO NOT REMOVE!
  vexcodeInit();

  // Run buttonPressed when the 'A' controller button is pressed.
  Controller.ButtonA.pressed(buttonPressed);
}

发布()

The released(callback, arg) method registers a function to be called when a button is released.

范围	描述
callback	释放按钮时调用的函数。
arg	**可选。**传递给回调函数的参数。

**返回：**事件类的一个实例。

// Define the buttonReleased function with a void return
// type, showing it doesn't return a value.
void buttonReleased() {
  // The Brain will print that a controller button was
  // released on the Brain's screen.
  Brain.Screen.print("controller button released");
}

int main() {
  // Initializing Robot Configuration. DO NOT REMOVE!
  vexcodeInit();

  // Run buttonReleased when the 'A' controller button is released.
  Controller.ButtonA.released(buttonReleased);
}

紧迫（）

The pressing() method returns whether a button is currently being pressed.

返回： 如果按钮当前被按下，则返回 True。如果按钮当前未被按下，则返回 False。