C# 第三次作业

这节课我们主要学习了class和object，也稍微介绍了一些继承和多态。

首先我按照课堂上讲的写了deep copy 算是this的引入▼

之后就到this了，我们讲了this指针的五个用法：

1. To qualify instance members otherwise hidden by parameters.  

示例如下▼

2. To pass the current object as a parameter to another method.

3. With Indexers.

4. To call one overloaded constructor from another.

示例如下▼

5. To explicitly invoke methods and members of a class.

然后是Built in type: String▼

 

最后，我尝试了Readonly Field▼