0 1, know a programming language.
This skill doesn't seem to need to be emphasized, but the key is to be afraid of "greed", not to learn outdated programming languages, and to understand them thoroughly.
02, algorithm and data structure
In the process of learning it, we often encounter some practical problems, for example, we can't make full use of data structure and effectively store and transform the relationship between data through appropriate algorithm strategies. To this end, we should invest more in data structures and algorithms, which determines our technical height. Data structure and algorithm are important basic knowledge, and the learning process is like laying a foundation.
03. Basic database knowledge
Although software developers should focus on programming instead of writing and optimizing SQL (which should be left to professional database administrators), in China, only top enterprises have database experts. If you want to go higher and further on the IT road, it is necessary to know some basic database knowledge, such as:
How to transform object attributes in business into database fields;
How to retrieve data from the database and splice the data sets together;
How to insert, modify and delete data in the database;
Data structure and indexing principle;
Optimization of SQL statements;
Wait a minute.
04, technical framework
Technical framework is a collection of general class libraries, which helps us to complete programming tasks more easily. After all, wheels are made for us. If there is no technical framework, it is like taking a carriage instead of an airplane, high-speed rail or car, and the efficiency will be greatly reduced.