# coding:utf-8import timefrom threading import Threaddef foo(x):#这里可以带参数def foo(x)    print "foo start 启动耗时".decode('utf-8'), time.ctime()    time.sleep(x)    print "foo start 运行结束：".decode('utf-8'), time.ctime()    return "aaa"def soo(x):    print "soo start 启动耗时".decode('utf-8'), time.ctime()    time.sleep(x)    print "soo start 运行结束".decode('utf-8'), time.ctime()    return "bbb"class MyThread1(Thread):    def __init__(self, number):        Thread.__init__(self)        self.num=number    def run(self):        print "run() start foo", time.ctime()        self.result = foo(self.num)#模拟耗时    def get_result(self):        return self.result#获取返回值class MyThread2(Thread):    def __init__(self, number):        Thread.__init__(self)        self.num = number    def run(self):        print "run() start soo", time.ctime()        self.result = soo(self.num)    def get_result(self):        return self.resultthd1 = MyThread1(3)thd2 = MyThread2(5)print "pre start\n\t"thd1.start()print "thd1 started\n\t"thd2.start()print "\n\t"print "thd2 started\n\t"thd1.join()thd2.join()print " \n\t"print "all done"print thd1.get_result(), time.ctime()print thd2.get_result(), time.ctime()