我想写一个代码，每秒执行指定次数的语句， 你们中的许多人可能更熟悉术语利率
这里我希望速率为每秒 30
假设我想每秒执行一个函数 30 次，持续 60 秒 表示速率=30/秒持续时间=60秒
谁能告诉我他们在 python 中提供的任何 api 都可以做同样的事情吗？
请您参考如下方法:
sched 模块正是为此而设计的:
from __future__ import division
import sched
import time
scheduler = sched.scheduler(time.time, time.sleep)
def schedule_it(frequency, duration, callable, *args):
no_of_events = int( duration / frequency )
priority = 1 # not used, lets you assign execution order to events scheduled for the same time
for i in xrange( no_of_events ):
delay = i * frequency
scheduler.enter( delay, priority, callable, args)
def printer(x):
print x
# execute printer 30 times a second for 60 seconds
schedule_it(1/30, 60, printer, 'hello')
scheduler.run()
对于线程环境，sched.scheduler 的使用可以替换为threading.Timer:
from __future__ import division
import time
import threading
def schedule_it(frequency, duration, callable, *args, **kwargs):
no_of_events = int( duration / frequency )
for i in xrange( no_of_events ):
delay = i * frequency
threading.Timer(delay, callable, args=args, kwargs=kwargs).start()
def printer(x):
print x
schedule_it(5, 10, printer, 'hello')
