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问题描述
在Python中定义类属性的首选方式是什么？为什么？可以同时使用这两种方法吗？
Which is the preferred way of defining class properties in Python and why? Is it Ok to use both in one class?
@property
def total(self):
return self.field_1 + self.field_2
或
total = property(lambda self: self.field_1 + self.field_2)
推荐答案
在您想要将方法转换为只读属性的情况下，装饰器形式可能是最好的。如果您想同时提供一个setter / deleter / docstring以及getter，或者想为其属性添加一个名称不同的属性，则第二种情况会更好。
The decorator form is probably best in the case you've shown, where you want to turn the method into a read-only property. The second case is better when you want to provide a setter/deleter/docstring as well as the getter or if you want to add a property that has a different name to the method it derives its value from.
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