C++实现单例模式为常考题。

The reason why this passage has been encrypted might be due to the fact that the blog contains (1) personal information, (2) private configuration (e.g., mac address, ip addresses), or (3) other reasons.

Go supports OOP (object oriented programming)

Go programming language is a grammar-sensitive language, meaning that the language attached great importance on grammar. Go supports gabbage collection. Go does not support inheritance and overloading, but supports interface. Go supports concurrency. Go does not support casting. Go does not support _assert (third-party packages available)_, Go does not support static variable.

A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules