1, data structure and algorithms: mainly test candidates' understanding of data structure and algorithms and the ability to apply.
2, database principles: mainly test candidates on relational databases, SQL language, database design and optimization.
3, accounting fundamentals: mainly test candidates on the accounting fundamentals (such as accounting, financial statement analysis, etc.) mastery.
4, finance and taxation regulations: mainly test the candidates' understanding and application of finance and taxation regulations (such as tax law, accounting law, etc.).