计时器#

介绍#

The Timer in VEX GO allows you to track elapsed time and perform actions based on time intervals. It can be used to measure how long something takes or reset for new timing operations.

以下是所有方法的列表：

方法——控制并与大脑的计时器互动。

  • reset – Resets the timer to zero.

  • time – Returns how much time has passed.

  • event – Registers a function to be called after a specified number of milliseconds.

构造函数——创建额外的计时器。

  • Timer – Creates an additional timer.

重置#

reset sets the timer to zero. This can be used to time additional sections of code within the same project.

用法：
timer.reset()

参数

描述

该方法没有参数。

 
# Build Used: Super Code Base 2.0
def main():
    # Reset the timer when the bumper is pressed
    while True:
        console.clear()
        console.print(timer.time(SECONDS))
        wait(50, MSEC)
        if bumper.is_pressed():
            timer.reset()

# Start threads — Do not delete
start_thread(main)

时间#

time returns the time since the timer was last reset as a decimal. The timer is automatically reset at the start of a project.

用法：
timer.time(units)

参数

描述

units

The unit that represents the time: MSEC (default) – milliseconds, or SECONDS

 
# Build Used: Super Code Base 2.0
def main():
    # Display the time until the bumper is pressed
    while True:
        console.clear()
        console.print(timer.time(SECONDS))
        wait(50, MSEC)
        if bumper.is_pressed():
            timer.reset()

# Start threads — Do not delete
start_thread(main)

事件#

event calls a function after a specified amount of time passes.

Usage:
timer.event(callback, delay, arg)

参数

描述

callback

当计时器事件发生时执行的函数。

delay

函数调用前的延迟，以毫秒为单位。

arg

Optional. A tuple containing arguments to pass to the callback function. See Functions with Parameters for more information.

 
# Build Used: Super Code Base 2.0
def timer_event():
    drivetrain.drive_for(FORWARD, 200, MM)

def main():
    # Drive forward after a 5000 millisecond delay
    timer.event(timer_event, 5000)

# Start threads — Do not delete
start_thread(main)

构造函数#

Timer#

Timer 创建一个新的计时器。2 Timer 对象将在创建后立即开始计数，并可与所有 timer 方法配合使用。

用法：
my_timer = Timer()

参数

描述

此构造函数没有参数。

 
def main():
    # Display the time of two timers
    wait(2, SECONDS)
    timer_1 = Timer()
    while True:
        console.clear()
        console.print("Timer: ", timer.time(SECONDS))
        console.new_line()
        console.print("timer_1: ", timer_1.time(SECONDS))
        wait(15, MSEC)

# Start threads — Do not delete
start_thread(main)
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