将对象转换为接口

本文介绍了将对象转换为接口的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 有人可以解释投射到界面背后的想法吗？ 例如： - >我有一个包含Read（）方法的IInterface。 - >我有一个对象obj实现IInterface。 为什么有人会这样做，这是什么意思？ 对象obj = new Object（）; IInterface var =（IInterface）obj var.Read（） 谢谢Hi,Can someone explain the idea behind casting to an interface?For example:-> I have an IInterface that contains a Read() method.-> I have an object "obj" that implements IInterface.Why would someone do the following and what does it mean?Object obj = new Object();IInterface var = (IInterface) objvar.Read()Thanks推荐答案 假设Object obj = new Object（）;实际上意味着SomeObjectThatImplemetsIInterface obj = new SomeObjectThatImplemetsIInterface（）;，在投射到IInterface时我真的没有意义， 。如果确实SomeObjectThatImplemetsIInterface 实现了IInterface那么你c（w）应该只调用obj.Read（）; 我的猜测是代码是由没有经验的程序员写的。如果我错了，请 纠正我。 ChrisAssuming that "Object obj = new Object();" really means "SomeObjectThatImplemetsIInterfaceobj = new SomeObjectThatImplemetsIInterface();", there really is no point,that I can think of, in casting to IInterface. If it is true that SomeObjectThatImplemetsIInterfaceimplements IInterface then you c(w)ould just call obj.Read();My guess is that the code was written by an inexperienced programmer. Pleasecorrect me if I''m wrong.Chris 这篇关于将对象转换为接口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！ 上岸，阿里云！