Question

import threading
class MyThread(threading.Thread):
    def __init__(self, target, *args):
        self._des = target
        self._args = args
        threading.Thread.__init__(self,)
        self._stopper = threading.Event()    

    def run(self):
        self._des(*self._args)

    def stop(self):
        self._stopper.set()

    def stopped(self):
        return self._stopper.isSet()
def add(a,b):
    print(a+b)
if __name__ == "__main__":
    f1 = MyThread(add,1,2)
    f1.start()
    f1.join()

上面的代码在python2.7上完美运行但是当我用3.4尝试它时它显示以下错误

TypeError: add() missing 2 required positional arguments: 'a' and 'b'

有没有人可以帮我解决这个问题。提前谢谢。

Answer 1

保持简单，这个工作

def __init__(self, target, a,b):
    self._des = target
    self._a=a
    self._b=b  
    threading.Thread.__init__(self)
    self._stopper = threading.Event()    

def run(self):
    self._des(self._a,self._b)

顺便说一句，你需要先运行初始化，因为这会消除所有值，如下所示

def __init__(self, target, *args):
    threading.Thread.__init__(self)
    self._des = target  
    self._args = tuple(args)        
    self._stopper = threading.Event()    

def run(self):
    self._des(self._args[0],self._args[1])

线程在python2.7上完美运行，但在python3.4上没有

1 个答案: