转自：http://www.cnblogs.com/alex3714/articles/5230609.html
def hello():
print("hello, world")t = Timer(30.0, hello)t.start() # after 30 seconds, "hello, world" will be printed转自：http://www.cnblogs.com/alex3714/articles/5230609.html
def hello():
print("hello, world")t = Timer(30.0, hello)t.start() # after 30 seconds, "hello, world" will be printed