刘振东

Liu Zhendong is an author about whom little public information is available; his nationality, dates of birth and death, and educational background cannot be confirmed. Judging from the four works held in the collection, his writing spans programming design and medicine, reflecting a fairly broad technical range. Python Programming and Python Programming Practice form a pair, one focusing on language fundamentals and the other on hands-on exercises, suitable for university courses or self-study. University Computer Basics targets general computer education and stays close to classroom needs. The remaining work, on wavelength-switching technology in high-performance liquid chromatography for quality evaluation of traditional Chinese medicine, reflects his professional grounding in analytical chemistry and quality control. Overall, his works are mainly textbooks and research-based titles, emphasizing practicality and applicability for teaching and professional practice.