问题描述

python中如何对类的成员函数开启线程？

单独对某个函数开启线程是可以的，比如下面的代码：
import threading
import thread
import time
def doWaiting():
print 'start waiting:', time.strftime('%H:%M:%S')
time.sleep(3)
print 'stop waiting', time.strftime('%H:%M:%S')
thread1 = threading.Thread(target = doWaiting)
thread1.start()
time.sleep(1) #确保线程thread1已经启动
print 'start join'
thread1.join() #将一直堵塞，直到thread1运行结束。
print 'end join'

但是对类的成员函数开启线程，程序报错：
th1 = threading.Thread(target = Test.buildList , (self ,))
SyntaxError: non-keyword arg after keyword arg

程序如下：
import threading
import thread
import time
class Test(object):
def init(self):
#threading.Thread.__init__(self)
self._sName = "machao"

def process(self):
    th1 = threading.Thread(target = Test.buildList , (self ,))
    th1.start()
    th1.join()

def buildList(self):
    while True:
        print "start"
        time.sleep(3)

test = Test()
test.process()

解决方案

target = self.buildList
要用self而不是test