Ruby is a dynamic, object-oriented programming language. It has a concise and elegant syntax and is widely used for web development and scripting. The following will introduce the advantages, disadvantages and comparison of Ruby with C#.

Simple and elegant syntax : Ruby's syntax design pursues simplicity and readability, making code writing more intuitive and efficient. It uses a grammatical structure similar to natural language, making the code highly readable.
Object-oriented programming : Ruby is a pure object-oriented programming language, everything is an object. It supports features such as encapsulation, inheritance and polymorphism, making the code structure clear and easy to maintain and expand.
Rich built-in libraries : Ruby has a rich set of built-in libraries, covering a variety of commonly used functions and tasks, such as file operations, network programming, string processing, etc. These libraries enable developers to quickly implement various functions and improve development efficiency.
High development efficiency : Ruby has concise syntax and rich built-in libraries, allowing developers to implement functions more quickly. In addition, Ruby also provides powerful meta-programming capabilities, allowing developers to dynamically modify and extend code at runtime, further improving development efficiency.
Active community support : Ruby has an active and large community from which developers can obtain a wealth of resources, tools, and support. The community continues to contribute new code libraries and frameworks, making the Ruby ecosystem more complete and rich.

Here is a simple example code written in Ruby to calculate the Fibonacci sequence:

 
    def fibonacci

Ruby is a dynamic, object-oriented programming language. It has a concise and elegant syntax and is widely used for web development and scripting. The following will introduce the advantages, disadvantages and comparison of Ruby with C#.​