每n秒运行某些代码[重复]

有没有办法，例如打印Hello World!每n秒？ 例如，程序会执行我拥有的任何代码，然后一旦过了 5 秒（time.sleep()）它将执行该代码。我会用它来更新文件，而不是打印 Hello World。

例如：

startrepeat("print('Hello World')", .01) # Repeats print('Hello World') ever .01 seconds

for i in range(5):
    print(i)

>> Hello World!
>> 0
>> 1
>> 2
>> Hello World!
>> 3
>> Hello World!
>> 4

import threading

def printit():
  threading.Timer(5.0, printit).start()
  print "Hello, World!"

printit()

# continue with the rest of your code

https://docs.python.org/3/library/threading.html#timer-objects https://docs.python.org/3/library/threading.html#timer-objects