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Define the exit operation of the context manager using Python's __exit__() function
Article Introduction:Use Python's __exit__() function to define the exit operation of the context manager. In Python, we often need to handle the application and release of some resources, such as files, database connections, network connections, etc. In order to ensure that resources can be released normally after use, we can use the context manager to manage the application and release of these resources. A context manager is an object that performs predetermined actions before and after entering and exiting a specific block of code. Context managers in Python can use the slang
2023-08-22
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