在该函数中,我们使用os.getpid()函数来获取当前进程的ID,使用__name__变量来获取当前进程的名称。最后,在if __name__ == "__main__":条件下调用print_current_process函数来打印当前进程的ID和名称。 示例结果 当我们运行上述代码时,输出结果可能如下所示: Current process ID: 12345 Current process name: ...
#开进程的方法一:importtimeimportrandomfrommultiprocessingimportProcessdefpiao(name):print('%spiaoing'%name)time.sleep(random.randrange(1,5))print('%spiao end'%name)p1=Process(target=piao,args=('egon',))#必须加,号p2=Process(target=piao,args=('alex',))p3=Process(target=piao,args=('wupeqi'...
May引发NotImplementedError(另外os.cpu_count()) multiprocessing.current_process():返回与当前进程相对应的Process对象。 multiprocessing.freeze_support():当使用multiprocessing的程序已冻结以产生Windows可执行文件时,添加支持,需要在之后直接调用此函数_ name _== ‘_ main _’ t0 >主模块的线。 multiprocessing.get...
/usr/bin/env python26#-*- coding:utf-8 -*-importosfrommultiprocessingimportProcess,current_processclassMyProcess(Process):def__init__(self):print"init:",os.getpid()//还是父进程 super(MyProcess,self).__init__()defrun(self):print"run:",os.getpid()//子进程if__name__=='__main__':...
import osfrommultiprocessing import Process,current_process def doubler(number): result = number *2proc_name =current_process().nameprint("{0} double to {1} by process id:{2}\n".format(number,result,proc_name)) if __name__ =="__main__": ...
parent process os.getpid()=3192, child process pid=3193 os.getpid()=3192 object deleted in __name__='__main__' os.getpid()=3193 object deleted in __name__='__main__' 可以看到,父进程3192创建了一个对象,并且fork了一个子进程3193,然后两个进程都销毁了这个对象。
Parentprocess11020childprocessstartRunchildprocess第一个进程(14792)childprocessend 在Windows下Process()必须放在if $$name$$ == '$$main$$':中，否则会报错 RuntimeError:Anattempthasbeenmadetostartanewprocessbeforethecurrentprocesshasfinisheditsbootstrappingphase.Thisprobablymeansthatyouarenotusing...
defworker():print(multiprocessing.current_process().name,"start")time.sleep(1)print(multiprocessing.current_process().name,"end")defworker2():print(multiprocessing.current_process().name,"start")time.sleep(2)print(multiprocessing.current_process().name,"end")if__name__=="__main__":p1=multi...
对于操作系统来说,一个任务就是一个进程(Process),比如打开一个浏览器就是启动一个浏览器进程,打开一个记事本就启动了一个记事本进程,打开两个记事本就启动了两个记事本进程,打开一个Word就启动了一个Word进程。 有些进程还不止同时干一件事,比如Word,它可以同时进行打字、拼写检查、打印等事情。在一个进程内部...
Process-Based Version Up to this point, all of the examples of concurrency in this tutorial ran only on a single CPU or core in your computer. The reasons for this have to do with the current design of CPython and something called the Global Interpreter Lock, or GIL. This tutorial won’...