Question

我的局限是我最大的敌人，但最重要的是学习伙伴。

我有两个班级：

class WorkerThread(Thread):
"""Worker Thread Class."""
def __init__(self, notify_window):
    """Init Worker Thread Class."""
    Thread.__init__(self)
    self._notify_window = notify_window
    self.ToKill = False
    self._want_abort = 0
    self.start()

def run(self):
    """Run Worker Thread."""
    while worker==True:
        # somehow get to volumePanel.startStop() 

        if self.ToKill == True:
            return None
    proc.wait()
    wx.PostEvent(self._notify_window, ResultEvent(None))
    return

和

class VolumePanel(wx.Panel):
    #<...snip...>
    def launchVolClick(self, event):
        if self.bt_Launch.Label == "Enable Monitor":
            self.worker = WorkerThread(self)
            self.bt_Launch.Label = "Disable Monitor"
        else:
            self.worker.ToKill = True
            self.bt_Launch.Label = "Enable Monitor"

    def startStop(self):
        print "in def startStop()"

我想找到一种从startStop内拨打WorkerThread的方法。我已经尝试了this，也无法让它工作。

编辑：下面的最终工作代码

class WorkerThread(Thread):
    """Worker Thread Class."""
    def __init__(self, notify_window, func):
        """Init Worker Thread Class."""
        Thread.__init__(self)
        self._notify_window = notify_window
        self.ToKill = False
        self._want_abort = 0
        global function
        function = func
        self.start()

    def run(self):
        """Run Worker Thread."""
        while worker==True:
            # somehow get to volumePanel.startStop() 
            function()
            if self.ToKill == True:
                return None
        proc.wait()
        wx.PostEvent(self._notify_window, ResultEvent(None))
        return

    def launchVolClick(self, event):
        if self.bt_Launch.Label == "Enable Volume Monitor":
            self.worker = WorkerThread(self, self.startStop)
            self.bt_Launch.Label = "Disable Volume Monitor"
        else:
            self.worker.ToKill = True
            self.bt_Launch.Label = "Enable Volume Monitor"

Answer 1

您可以传递对startStop的引用，并从线程类中调用引用作为一个选项。如果没有看到更多的代码/代码的结构，很难说其他选项。

这是前者的一个人为举例。您不必以这种方式传递信息，您可以在VolumePanel中调用该帖子并传递self.startStop。

此外，worker未定义，proc也是如此，除非这是wxpython的某些部分，我不熟悉。

from threading import Thread

class WorkerThread(Thread):

    def __init__(self, func):

        Thread.__init__(self)
        self.func = func

    def run(self):

        for i in range(10):
            self.func()

class VolumePanel:

    def __init__(self):

        #self.thread = WorkerThread(self.startStop)
        #self.thread.start() #or elsewhere
        pass

    def startStop(self):

        print "in def startStop()"

vp = VolumePanel()
thread = WorkerThread(vp.startStop)
thread.start()

Answer 2

您也可以将调用类传递给线程，如下所示：

express()

请注意，我们使用class WorkerThread(threading.Thread): def __init__(self, parent): super(WorkerThread, self).__init__() self.parent = parent def run(self): for i in range(10): wx.CallAfter(self.parent.startStop) class VolumePanel(object): def startStop(self): print "in def startStop()"而不是直接调用函数。这是因为如果我们直接调用它，它实际上是从线程而不是wx.CallAfter()调用的。这有时可能是一个问题，取决于你正在做什么。

如果我们在没有MainThread的情况下打印出当前主题（threading.current_thread()），我们就会

wx.CallAfter

然而，对于<WorkerThread(Thread-1, started 6612)> <WorkerThread(Thread-1, started 6612)> <WorkerThread(Thread-1, started 6612)> <WorkerThread(Thread-1, started 6612)> <WorkerThread(Thread-1, started 6612)> <WorkerThread(Thread-1, started 6612)> <WorkerThread(Thread-1, started 6612)> <WorkerThread(Thread-1, started 6612)> <WorkerThread(Thread-1, started 6612)> <WorkerThread(Thread-1, started 6612)>，我们得到了

wx.CallAfter

从另一个类调用类函数

2 个答案: