# -*- coding: utf-8 -*-

import threading, time

def testThread(id):
    for i in range(10):
        print 'thread(%s) --> %s' % (id, i)
        time.sleep(0)    # context switching

testThreads = []
for i in range(3):
    th = threading.Thread(target=testThread, args=(i,))
    th.start()
    testThreads.append(th)

for th in testThreads:
    th.join()

print 'end'