属性获取器是否应返回私有成员以外的其他值？ [英] Should property getters return values other than that of the private member?

问题描述

private int _myField;
public int MyField
{
  get {
   return _myField * 99;
}
set {
   _myField * value;
}
}

我已经看到开发人员在其中添加了更复杂的代码Getter，设置其他成员和属性等。对我来说，返回除关联成员变量以外的值会导致调试混乱。

I've seen developers add more complex code into the Getter, setting other members and properties etc. To me return a value other than the associated member variable causes debugging confusion.

$ b $更好吗？

private int _myField;
public int MyField
{
  get {
   return _myField = _myField * 99;
}
set {
   _myField * value;
}
}

还是这个？

private int _myField;
public int MyField
{
  get {
   return _myField;
}
set {
   _myField = value * 99;
}
}

推荐答案

I认为您的第二个片段完全违反了代码的语义。使用吸气剂不应影响公共价值-也就是说，您可以在吸气剂内部进行任何您想做的事情，例如缓存或延迟初始化等-但在外部，两次连续调用吸气剂应返回相同的结果。

I think your second snippet is quite a violation of the code's semantics. Using a getter should not influence the public value - that is, you can do whatever you want inside the getter, such as caching or lazy initialisation and so on - but in the outside, two consecutive calls to the getter should return the same result.

这篇关于属性获取器是否应返回私有成员以外的其他值？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！