Python:Python is purely free software , and the source code and interpreter CPython follow the GPL(GNU general public License) agreement. Python syntax is simple and clear, and one of the features is to force whitespace (white space) to be indented as a statement. It has a rich and powerful library. It is often nicknamed the Glue language , and it is easy to connect a variety of modules (especially C/C + +) made in other languages. A common application scenario is to use Python to quickly build a prototype of a program (sometimes even the final interface of the program), and then rewrite it in a more appropriate language with the parts that are specifically required. Java: Java is an object-oriented programming language, not only absorbs the advantages of the C + + language, but also rejects the difficult to understand in C + + inheritance , pointers and other concepts, As a result, the Java language has two features that are powerful and easy to use. As the representative of static object-oriented programming language, the Java language implements the object-oriented theory, which allows programmers to do complex programming in an elegant way. Java has the characteristics of simplicity, object-oriented, distributed , robustness , security , platform independence and portability, multithreading , dynamic and so on. Java can write desktop applications ,Web Applications , Distributed Systems , and embedded system applications. PHP:PHP (foreign name: Php:hypertext Preprocessor, Chinese name: "Hypertext Preprocessor") is a common open source scripting language. The grammar absorbs the C language, Java and Perl features, is conducive to learning, widely used, mainly for the field of web development. PHP's unique syntax mixes the syntax of C, Java, Perl, and PHP's own creation. It can execute Dynamic Web pages more quickly than CGI or Perl. Dynamic pages made in PHP are compared to other programming languages, and PHP is executed in HTML (an application under the standard Universal Markup Language), which is much more efficient than CGI, which generates HTML markup entirely; PHP can also execute post-compilation code, Compilation can achieve encryption and optimize code execution, making code run faster.
From the frequency of the search, Python is rising, while Java and PHP have declined, indicating that more and more people are going to use and learn Python
In terms of the distribution and attributes of the population, men use a relatively large number of programming languages and are concentrated in the three provinces of north-Canton.
Comparison of the Baidu index for Python, Java, and PHP