Python多线程用法

# # -*- coding:utf-8 -*-
import time
import threading

class MyThread(threading.Thread):
    def __init__(self, func, args, name=''):
        threading.Thread.__init__(self)
        self.name = name
        self.func = func
        self.args = args
        self.result = self.func(*self.args)

    def get_result(self):
        try:
            return self.result
        except Exception:
            return None


def called(name=''):
    print('我被{}调用了'.format(name))
    time.sleep(1)
    return '我被{}调用完了'.format(name)



def main():
    s_time = time.time()
    thread = []
    for i in range(5):
        name = 'thread+{}'.format(str(i))
        t = MyThread(called, (name, ), called.__name__)  # 创建线程
        thread.append(t)
    for i in range(4):
        thread[i].start()  # 多线程排序执行
    for i in range(4):
        thread[i].join()  # 阻塞主线程，直到所以现场运行结束
    for i in range(4):
        print(thread[i].get_result())

    print('多线程耗时：', time.time()-s_time)

    s_time = time.time()
    for i in range(5):
        name = 'thread+{}'.format(str(i))
        called(name)
    print('单线程耗时：', time.time() - s_time)

if __name__ == '__main__':
    main()