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xuehongyang

ser

83d8d3c almost 3 years ago

292 Bytes

import functools


def Singleton(cls):
    """
    单例decorator
    """
    _instance = {}

    @functools.wraps(cls)
    def _singleton(*args, **kargs):
        if cls not in _instance:
            _instance[cls] = cls(*args, **kargs)
        return _instance[cls]

    return _singleton

	import functools


	def Singleton(cls):
	"""
	单例decorator
	"""
	_instance = {}

	@functools.wraps(cls)
	def _singleton(args, *kargs):
	if cls not in _instance:
	_instance[cls] = cls(args, *kargs)
	return _instance[cls]

	return _singleton