1.数据库连接

2.表创建和截断

3.表数据插入

4.表数据删除

5.导出表中数据到文件中,以 | 分割

来源 https://blog.csdn.net/abc5254065/article/details/122394510?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522164860649116780274180189%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fall.%2522%257D&request_id=164860649116780274180189&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~first_rank_ecpm_v1~times_rank-23-122394510.142^v5^pc_search_result_control_group,143^v6^control&utm_term=ESGYNDB&spm=1018.2226.3001.4187