LED指示灯#

介绍 #

The led class is used to turn an LED Indicator on and off.

类构造函数 #

led(
  triport::port &port );

类析构函数 #

Destroys the led object and releases associated resources.

virtual ~led();

参数 #

范围	类型	描述
`port`	`triport::port &`	The 3-Wire Port that the LED Indicator is connected to, written as `Brain.ThreeWirePort.X` or `ExpanderName.X`, where `X` is the port letter (for example, `Brain.ThreeWirePort.A` or `Expander1.A`).

示例 #

// Create an led instance in Port A
led LEDA = led(Brain.ThreeWirePort.A);

成员功能 #

The led class includes the following member functions:

on — Turns the LED Indicator on.
off — Turns the LED Indicator off.

Before calling any led member functions, a led instance must be created, as shown below:

/* This constructor is required when using VS Code.
LED Indicator configuration is generated automatically
in VEXcode using the Device Menu. Replace the values
as needed. */

// Create an led instance in Port A
led LEDA = led(Brain.ThreeWirePort.A);

on #

打开LED指示灯。

Available Functions

void on();

Parameters

此函数不接受任何参数。

Return Values

此函数不返回值。

Examples

// Turn on the LED
LEDA.on();

// Wait 2 seconds
wait(2, seconds);

// Turn off LED
LEDA.off();

off #

关闭LED指示灯。