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This article mainly introduces "Python object-oriented how to create objects and send messages to objects". In daily operation, I believe many people have doubts about how to create objects and send messages to objects in Python object-oriented. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "how to create objects and send messages to objects by Python object-oriented". Next, please follow the editor to study!

@ property decorator

We have discussed the access rights of properties and methods in Python before. Although we do not recommend making properties private, it is also problematic to expose properties directly to the outside world. For example, we have no way to check whether the values assigned to properties are valid. Our previous suggestion is to start the attribute naming with a single underscore, which implies that the attribute is protected and is not recommended to be accessed directly by the outside world, so if you want to access the attribute, you can do so through the getter (accessor) and setter (modifier) methods of the attribute. If you want to do this, consider using the @ property wrapper to wrap the getter and setter methods, making access to properties secure and convenient, as shown below.

Class Person (object): def _ init__ (self, name, age): self._name = name self._age = age # accessor-getter method @ property def name (self): return self._name # accessor-getter method @ property def age (self): return self._age # modifier-setter method @ age.setter def age (self, age): self._age = age def play (self): if self._age

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