How to change careers after several years of sales?

depending on what job you want to change, prepare according to the relevant requirements. I used to be a salesman for two years, and then I explained the operation in detail, so I went to Lagou.com, boss Direct Employment, Wenshi.com, Dana, etc. to find out the relevant requirements, depending on my education, your age and job description. Finally, I learned data analysis, copywriting and new media channels before I succeeded in finding a job.