about python
Although python is slow and cpu is fast, the network and hard disk are not so fast, so a lot of applications don't need to run so fast. For example, on a road with traffic jams, the speed of the car is faster than that of the taxi, but due to the restriction of the traffic jam, the car will not drive to its original speed. And the bottleneck of the running speed is far from python development, but the operation of the database and network calls, so the slow running speed of python is not a problem.
Python provides a very complete basic code library, covering a lot of content such as network, file, GUI, database, text, etc., which is vividly called "batteries included". Developed in Python, many functions do not have to be written from scratch, and can be directly used off-the-shelf. In addition to the built-in libraries, Python has a large number of third-party libraries, that is, things developed by others for you to use directly. Of course, if the code you develop is well packaged, it can also be used by others as a third-party library.
I learned the first and second seasons of JAVA on the MOOC online before, and found that I really don't like JAVA, it is cumbersome. Thinking about why I learned java in the first place, maybe it was because I wanted to learn a language, and I just heard that java is good, or maybe it was because my roommate gave me a very thick java book. If you don't learn it, it will be a waste. . . It's silly to think about. Thinking of the simplicity of python and the fact that the company I'm going to practice for is using python, so I switched to python halfway. . . . That's it. .