python_learn/single_instance/main.py · LiHeavy/Code

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python_learn

single_instance

main.py

main.py 1.27 KB

#!/usr/bin/python3
# ******************************************************************************
# Copyright (c) Huawei Technologies Co., Ltd. 2021-2021. All rights reserved.
# licensed under the Mulan PSL v2.
# You can use this software according to the terms and conditions of the Mulan PSL v2.
# You may obtain a copy of Mulan PSL v2 at:
# http://license.coscl.org.cn/MulanPSL2
# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
# PURPOSE.
# See the Mulan PSL v2 for more details.
# ******************************************************************************/
from python_learn.single_instance.single_class import SingleInstance
from python_learn.single_instance.single_func import single_instance

# @SingleInstance
class SingleTest:
 _instance = None

def __new__(cls, *args, **kwargs):
 if cls._instance is None:
 cls._instance = super().__new__(cls, *args, **kwargs)
 return cls._instance

def __init__(self):
 print('Call init')

def t_func(self):
 print(id(self))

if __name__ == "__main__":
 obj_1 = SingleTest()
 obj_2 = SingleTest()
 obj_1.t_func()
 obj_2.t_func()

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LiHeavy 提交于 2022年04月27日 15:45 +08:00 . update python name

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#!/usr/bin/python3
# ******************************************************************************
# Copyright (c) Huawei Technologies Co., Ltd. 2021-2021. All rights reserved.
# licensed under the Mulan PSL v2.
# You can use this software according to the terms and conditions of the Mulan PSL v2.
# You may obtain a copy of Mulan PSL v2 at:
# http://license.coscl.org.cn/MulanPSL2
# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
# PURPOSE.
# See the Mulan PSL v2 for more details.
# ******************************************************************************/
from python_learn.single_instance.single_class import SingleInstance
from python_learn.single_instance.single_func import single_instance


# @SingleInstance
class SingleTest:
 _instance = None

 def __new__(cls, *args, **kwargs):
 if cls._instance is None:
 cls._instance = super().__new__(cls, *args, **kwargs)
 return cls._instance

 def __init__(self):
 print('Call init')

 def t_func(self):
 print(id(self))


if __name__ == "__main__":
 obj_1 = SingleTest()
 obj_2 = SingleTest()
 obj_1.t_func()
 obj_2.t_func()