16 Errors and Exceptions

1. System.IO.IOException
2. System.ComponentModel.Composition.CompositionException
3. System.Exception
   
   1. System.SystemException：运行时抛出
   2. System.ApplicationException：使用已经背离了设计的初衷
4. System.StackOverflowException
5. System.IO.EndOfStreamException
6. System.OverflowException
7. try catch finally
8. 自定义异常
9. caller information [CallerLineNumber],[CallerFilePath],[CallerMemberName]