C#面向对象概念

C#基本语法和API

Authentication is a term that refers to the process of proving that some fact or some document is genuine. In computer science, this term is typically associated with proving a user's identity.

What is computer security? What is the history of computer security? Where does computer security come from? Why do we need computer security?

Security is about the protection of assets, computer security deal with the protection of IT assets.