python如何写多进程

from multiprocessing import  Process

class MyProcess(Process): #继承Process类

    def __init__(self,name):

        super(MyProcess,self).__init__()

        self.name = name

    def run(self):        print('测试%s多进程' % self.name)if __name__ == '__main__':

    process_list = []    for i in range(5):  #开启5个子进程执行fun1函数

        p = MyProcess('Python') #实例化进程对象

        p.start()

        process_list.append(p)    for i in process_list:

        p.join()    print('结束测试')