[英]How do I get my Python program to sleep for 50 milliseconds?
如何让我的 Python 程序休眠 50 毫秒?
from time import sleep
sleep(0.05)
请注意,如果您依靠睡眠时间恰好为50 毫秒,您将不会得到那个。 它只是关于它。
使用time.sleep()
:
import time
time.sleep(50 / 1000)
请参阅 Python 文档: https : //docs.python.org/library/time.html#time.sleep
有一个名为“时间”的模块可以帮助您。 我知道两种方法:
sleep
Sleep(参考)要求程序等待,然后执行其余的代码。
有两种使用睡眠的方法:
import time # Import whole time module print("0.00 seconds") time.sleep(0.05) # 50 milliseconds... make sure you put time. if you import time! print("0.05 seconds")
第二种方式不导入整个模块,而只是休眠。
from time import sleep # Just the sleep function from module time print("0.00 sec") sleep(0.05) # Don't put time. this time, as it will be confused. You did # not import the whole module print("0.05 sec")
如果您需要运行循环,这种方式很有用。 但是这个稍微复杂一些。
time_not_passed = True from time import time # You can import the whole module like last time. Just don't forget the time. before to signal it. init_time = time() # Or time.time() if whole module imported print("0.00 secs") while True: # Init loop if init_time + 0.05 <= time() and time_not_passed: # Time not passed variable is important as we want this to run once. !!! time.time() if whole module imported :O print("0.05 secs") time_not_passed = False
您也可以使用Timer()
函数来实现。
代码:
from threading import Timer
def hello():
print("Hello")
t = Timer(0.05, hello)
t.start() # After 0.05 seconds, "Hello" will be printed
您还可以将 pyautogui 用作:
import pyautogui
pyautogui._autoPause(0.05, False)
如果第一个参数不是 None,那么它将暂停第一个参数的秒,在这个例子中:0.05 秒
如果第一个参数是 None,第二个参数是 True,那么它将休眠全局暂停设置,该设置设置为:
pyautogui.PAUSE = int
如果您想知道原因,请参阅源代码:
def _autoPause(pause, _pause):
"""If `pause` is not `None`, then sleep for `pause` seconds.
If `_pause` is `True`, then sleep for `PAUSE` seconds (the global pause setting).
This function is called at the end of all of PyAutoGUI's mouse and keyboard functions. Normally, `_pause`
is set to `True` to add a short sleep so that the user can engage the failsafe. By default, this sleep
is as long as `PAUSE` settings. However, this can be override by setting `pause`, in which case the sleep
is as long as `pause` seconds.
"""
if pause is not None:
time.sleep(pause)
elif _pause:
assert isinstance(PAUSE, int) or isinstance(PAUSE, float)
time.sleep(PAUSE)
import time as t
t.sleep(0.05)
这应该可以解决问题!
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