Pandas3D错误

Question

我想做一个截图功能， 但每次我尝试，它都会给我一个错误：

Traceback (most recent call last):
  File "C:\Panda3D-1.8.1\direct\showbase\EventManager.py", line 61, in eventLoop
Task
    self.doEvents()
  File "C:\Panda3D-1.8.1\direct\showbase\EventManager.py", line 55, in doEvents
    processFunc(self.eventQueue.dequeueEvent())
  File "C:\Panda3D-1.8.1\direct\showbase\EventManager.py", line 122, in processE
vent
    messenger.send(eventName, paramList)
  File "C:\Panda3D-1.8.1\direct\showbase\Messenger.py", line 397, in send
    self.__dispatch(acceptorDict, event, sentArgs, foundWatch)
  File "C:\Panda3D-1.8.1\direct\showbase\Messenger.py", line 482, in __dispatch
    method (*(extraArgs + sentArgs))
  File "C:\Panda3D-1.8.1\direct\showbase\ShowBase.py", line 2317, in __oobeButto
n
    messenger.send(button + suffix)
  File "C:\Panda3D-1.8.1\direct\showbase\Messenger.py", line 397, in send
    self.__dispatch(acceptorDict, event, sentArgs, foundWatch)
  File "C:\Panda3D-1.8.1\direct\showbase\Messenger.py", line 482, in __dispatch
    method (*(extraArgs + sentArgs))
TypeError: Screenie() takes exactly 1 argument (0 given)
:task(error): Exception occurred in PythonTask eventManager
Traceback (most recent call last):
  File "Play.py", line 791, in <module>
    run()
  File "C:\Panda3D-1.8.1\direct\showbase\ShowBase.py", line 2921, in run
    self.taskMgr.run()
  File "C:\Panda3D-1.8.1\direct\task\Task.py", line 502, in run
    self.step()
  File "C:\Panda3D-1.8.1\direct\task\Task.py", line 460, in step
    self.mgr.poll()
  File "C:\Panda3D-1.8.1\direct\showbase\EventManager.py", line 61, in eventLoop
Task
    self.doEvents()
  File "C:\Panda3D-1.8.1\direct\showbase\EventManager.py", line 55, in doEvents
    processFunc(self.eventQueue.dequeueEvent())
  File "C:\Panda3D-1.8.1\direct\showbase\EventManager.py", line 122, in processE
vent
    messenger.send(eventName, paramList)
  File "C:\Panda3D-1.8.1\direct\showbase\Messenger.py", line 397, in send
    self.__dispatch(acceptorDict, event, sentArgs, foundWatch)
  File "C:\Panda3D-1.8.1\direct\showbase\Messenger.py", line 482, in __dispatch
    method (*(extraArgs + sentArgs))
  File "C:\Panda3D-1.8.1\direct\showbase\ShowBase.py", line 2317, in __oobeButto
n
    messenger.send(button + suffix)
  File "C:\Panda3D-1.8.1\direct\showbase\Messenger.py", line 397, in send
    self.__dispatch(acceptorDict, event, sentArgs, foundWatch)
  File "C:\Panda3D-1.8.1\direct\showbase\Messenger.py", line 482, in __dispatch
    method (*(extraArgs + sentArgs))
TypeError: Screenie() takes exactly 1 argument (0 given)

下面是截图的部分

^{pr2}$

有人能告诉我它怎么了吗？我正试着修好它，但不知道该怎么办。。。在

Answer 1

错误很明显

TypeError: Screenie() takes exactly 1 argument (0 given)

您的Screenie函数接受一个参数（self），但是无论调用它的是什么，都没有给出任何参数（即Screenie()而不是Screenie(obj)）。在

您选择self作为Screenie的参数，这使我认为它是一个类方法。那样的话，你应该有这样的东西。在

class SomeCLass(object):
    # <snip>
    def Screenie(self):
        file_name = Filename('whatever.png')
        self.win.saveScreenshot(file_name)

# Create instance
instance = SomeClass()

# Bind keypress to bound method on instance
base.accept('f9', instance.Screenie)

这可以确保Screenie的self参数绑定到instance对象，并且您的代码应该可以工作。在