import_threadimporttime # 为线程定义一个函数 defprint_time(threadName,delay):count=0whilecount<5:time.sleep(delay)count+=1print("%s: %s"%(threadName,time.ctime(time.time()))# 创建两个线程try:_thread.start_new_thread(print_time,("Thread-1",2,))_thread.start_new_thread(print_time,("...
计算方法：方法1import datetimestarttime = datetime.datetime.now()long runningendtime = datetime.datetime.now()print (endtime - starttime).seconds方法 2start = time.time()run_fun()end = time.time()print end-start方法3start = time.clock()run_fun()end = time.clock()print end-...
import time def log_decorator(func): def wrapper(*args, **kwargs): start_time = time.time() print(f"{func.__name__} started at {time.ctime(start_time)}") result = func(*args, **kwargs) end_time = time.time() duration = end_time - start_time print(f"{func.__name__} en...
importthreadingimporttimedefdo_work():print("Thread starting.")time.sleep(1)# 模拟耗时操作print("Thread finishing.")if__name__=="__main__":foriinrange(3):do_work()print("All threads have completed.") 1.2.3 确定当前线程 threading.current_thread().name# 通常一个服务进程中有多个线程服务...
processes :要创建的进程数,如果省略,将默认使用cpu_count()返回的数量。 initializer:每个工作进程启动时要执行的可调用对象,默认为None。如果initializer是None,那么每一个工作进程在开始的时候会调用initializer(*initargs)。 initargs:是要传给initializer的参数组。
@timethisdefcountdown(n):whilen >0: n -=1countdown(10000000) 控制台打印输出: __main__.countdown : 0.574160792 请注意,在进行性能统计时,任何得到的结果都是近似值。我们这里使用的函数time.perf_counter()是能够提供给定平台上精度最高的计时器,它返回一个秒级的时间值。但是,它计算的仍然是挂钟时间...
import asyncio import time from functools import partial async def inner_func(): task = asyncio.current_task() print(f'[{now()}] [{task.get_name()}] inner_func activate!') await asyncio.sleep(1) print(f'[{now()}] [{task.get_name()}] Running for 1s ...') await asyncio.sleep...
fromrandomimportrandomfromtimeimportperf_counter# Change the value of COUNT according to the speed of your computer.# The value should enable the benchmark to complete in approximately 2 seconds.COUNT =500000DATA = [(random() -0.5) *3for_inrange(COUNT)] e =2.7182818284590452353602874713527defsinh...
time.sleep(1) ifcount >= end_count: ifexit_mode == 1: break elifexit_mode == 2: raise Exception("test") elifexit_mode == 3: exit(1) else: pass count += 1 worker(exit_mode=1) # worker(exit_mode=2) # worker(exit_...
import time import os from multiprocessing import Process def long_time_task(i): print('子进程: {} - 任务{}'.format(os.getpid(), i)) time.sleep(2) print("结果: {}".format(8 ** 20)) if __name__ == '__main__': print('当前母进程: {}'.format(os.getpid())) ...