threading multithreading

# coding:utf-8 
import time 

from threading import Thread 


def foo(x):#Here can take parameters def foo(x) 
    print "foo start startup time".decode('utf-8'), time.ctime( ) 
    time.sleep(x) 
    print "foo start ends: ".decode('utf-8'), time.ctime() 
    return "aaa" 
def soo(x): 
    print "soo start takes time to start".decode ('utf-8'), time.ctime() 
    time.sleep(x) 
    print "soo start end of operation".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)#simulation time-consuming

    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.result

thd1 = 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()