python 之多线程加锁

通过RLOCK方式，解决多线程之间修改共享对象不出问题，使线程的资源独占

import threading
import time
lock=threading.Rlock()
def run(name):
    lock.acquire()
    print "i am mult-threding",i
    lock.release()
    time.sleep(2)
for i in range(20):
    t=threading.Thread(target=run,args=(i,))
    t.start()