本文实例为大家分享了python多进程共享变量的相关代码，供大家参考，具体内容如下
from multiprocessing import Process, Manager import os import time class MulFun(): def __init__(self): self.a = [1,2,3,4,5] self.b = 0 self.c = {} self.s = "hello world" self.radius = Manager().dict() self.radius['a'] = self.a self.radius['b'] = self.b self.radius['c'] = self.c self.radius['s'] = self.s def func1(self): self.b = self.radius['b'] for i in range(10): self.b += i self.radius['b'] = self.b time.sleep(0.5) print '1: ', self.radius['b'],':', self.radius['c'], os.getpid() def func2(self): self.c = self.radius['c'] for i in ['ab', 'bc', 'cd', 'df', 'fg']: self.c[i] = i + i self.radius['c'] = self.c time.sleep(0.5) print '2: ', self.radius['b'],':', self.radius['c'], os.getpid() def run(self): process1 = Process(target=self.func1, args=()) process2 = Process(target=self.func2, args=()) process1.daemon = True process2.daemon = True process1.start() process2.start() process1.join() process2.join() class MulSun1: def __init__(self, radius): self.radius = radius self.a = radius['a'] self.s = radius['s'] def process(self): for i, j in enumerate(self.a): #self.a[i] = j * 2 #self.radius['a'] = self.a time.sleep(0.5) print '1: ', self.radius['a'], ' & ', self.radius['s'] class MulSun2: def __init__(self, radius): self.radius = radius self.a = radius['a'] self.s = radius['s'] def process(self): for i in range(10): self.s = self.s + ':% s' %i if i < len(self.a): self.a[i] += i else: self.a.append(i + i) self.radius['s'] = self.s self.radius['a'] = self.a time.sleep(0.5) print '2: ', self.radius['a'], ' & ', self.radius['s'] if __name__ == '__main__': aa = MulFun() s1 = MulSun1(aa.radius) s2 = MulSun2(aa.radius) process1 = Process(target=s1.process, args=()) process2 = Process(target=s2.process, args=()) process1.daemon = True process2.daemon = True process1.start() process2.start() process1.join() process2.join() print "------------------------" print 'process id:', os.getpid() print 'done' print aa.radius['a'], ' & ', aa.radius['s']
以上就是本文的全部内容，希望对大家学习python程序设计有所帮助。
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