摘要： 使用decorator的方式: 1 def singleton(cls): 2 instance = {} 3 def returnInstance(): 4 if cls not in instance: 5 instance[cls] = cls() 6 return instance[cls] 7 return returnInstance 8 9 @singleton10 class MyClass(object):11 def __init__(self):12 self.x =... 阅读全文