如何在python中卸載一個類的實例

Question

我認爲最好給出一個例子說明爲什麼我想要這樣做。 說我有一個遊戲。 還有一些物品是enemeys 這些enemeys有一個正在運行的類（健康，武器等） 如果玩家殺死敵人，我想從遊戲中卸載enemeys數據（移除該類的敵人實例）我會如何去做這件事？

編輯：

確定使用DEL劑量沒有幫助。這裏是一個基本的例子想像obj1是一個敵人，並在我= 10的想象力，敵人死亡。 我的代碼刪除但是obj的功能更新（）是在OBJ1仍然被稱爲殼仍然打印「AAAAAAAAAAAA」即使外殼打印ð爲真

import threading 
import time 
import sched 
#import Queue 

#setting up some OneInstance Var's 
starttime=time.time() 
condition = threading.Condition() 
lock = threading.Lock() 

#This is the tick method for calling the update threads in the child classes (set at 20 Ticks/s) 
#The tick is run in its own thread so it can not be interrupted 
#The tick method is part of the Base module but not part of the base class As there needs to be ONLEY ONE INSTANCE of it 
def Tick(cond): 
    while True: 
     with cond: 
      cond.notifyAll() #This clears the block on the threads evey 20th of a second 
     time.sleep(0.05 - ((time.time() - starttime) % 0.05)) #This is the 20th of a second part 

tickThread=threading.Thread(name = 'ThreadTick', target=Tick, args=(condition,)) #This setsup the Tick in its own thread 
tickThread.start()#This runs said thread 

#BaseClass is the class All other classes inhearit from 
class BaseClass(object): 
    def __init__(self, name): 
     global condition 
     global lock 
     self.name = name 
     t=threading.Thread(name = 'Thread'+self.name, target=self.UpdateHandler, args=(condition,lock,)) 
     t.start() 


    def BaseClassType(self): 
     """Returns a string of the childs type""" 
     pass 

    def UpdateHandler(self, cond, lock): 
     #this part handles when to call the update. 
     #it is allso needed so that it can be run in a thread. 
     while True: 
      self.lock = lock #this is just passed down evey tick so that threads can lock them selfs when writing to the shell 
      self.Update() #Calls the update on all child classes 
      with cond: 
       cond.wait()#This makes all the threads waite(besides the tick thread) when they are done for the next tick. 

    def Update(self): 
     #This is a place holder. 
     #It stops classes that don't have a Update function crashing when called 
     pass 

    def Unload(self): 
     #this method will terminate the thread.... Don't know if this is even possible in python yet 
     #and then remove any active instances of itself befor removing the class instance 
     pass 

    #This class is made so that I did not have to rewrite self.lock.blablabla eatch time i wanted to print to the shell 
    def Print (self, message): 
     self.lock.acquire() 
     print(message) 
     self.lock.release() 

#--------------------------------------------------------------------------------- 
class ChildClassA(BaseClass): 
    def __init__(self, name): 
     super(ChildClassA, self).__init__(name) 

    def BaseClassType(self): 
     return 'ChildClassA' 

    def Update(self): 
     self.Print('AAAAAAAAAAAAAAAAAAAAAAA') 

#---------------------------------------------------------------------------------- 
class ChildClassB(BaseClass): 
    def __init__(self, name): 
     super(ChildClassB, self).__init__(name) 

    def Update(self): 
     #print(self.name, "This is a completley different action") 

     self.Print('BBBBBBBBBBBBBBBBBBB') 
     self.Hi() 

    def Hi(self): 
     self.Print("Hi") 
#---------------------------------------------------------------------------------- 
#works now just like in unity 
class ChildClassC(BaseClass): #the new class 
    def __init__(self, name): #this is the equivalent of start() 
     super(ChildClassC, self).__init__(name) #this is the onley extra bit but its just to pass some name data through the classes 

    def Update(self): #this is litaley the same as update() except it has self in the parameters 

     self.Print("CCCCCCCCCCCCCCCCCCCCCCCCCC") 

#-------------------------------------------------------------------------------- 

obj1 = ChildClassA('Obj1') 
obj2 = ChildClassB('Obj2') 
obj3 = ChildClassC('Obj3') 

i=0 
d=False 
while True: 
    if i >=10: 
     if d==False: 
      del obj1 
      d = True 
    i=i+1 
    print("D: ", d) 
    print("I: ", i) 

Answer 1

目前還不清楚是什麼你在問。但我猜測它是下列之一：

• 您是來自C背景，其中分配和釋放對象，Python是您的第一個垃圾收集語言。如果你刪除所有對它的引用（例如從精靈列表或其他東西中刪除它）。垃圾收集將自動從內存中刪除它。
• 如果您問如何將其從遊戲場景中刪除，您必須更具體地瞭解您正在使用的遊戲框架或其他現有代碼。