Python: Python is an object-oriented interactive computer programming language. It is characterized by simple and clear grammar. Because it is easy to learn and easy to read, some schools use it instead of C as the basic introductory language. At the same time, Python has a rich and powerful class library, which is basically competent for the usual programming work, and also has good support for some emerging technologies such as big data and machine learning. C++:C+4 language retains the characteristics of C language, such as effectiveness and flexibility, and increases the support of object-oriented programming. It has powerful programming functions and can easily simulate the process and operation of real problems.

JavaScript:JavaScript is a lightweight programming language. It is a scripting language, which can be embedded in HTML pages, interpreted and executed by browsers, and used to realize the interaction between browsers and users. Its application scenario is mainly based on Web development.

Java: is a traditional object-oriented language, which is characterized by supporting cross-platform development. Jav language is designed based on the idea of object-oriented, but some object-oriented features that are rarely used or difficult to use in c++ are deleted. With the development of Internet, Java language is becoming more and more popular, and a large number of open source frameworks and class libraries support the development practice of Java in various scenarios.