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Mission requirements
Starting from the user's login, including the user's query, delete, update, insert.
Run shot
1. Enter the username: root
password: 123
2. Log in
3. Query (fuzzy query)
4. Update
5. Insert
6. Delete
See detailed code file
https://pan.baidu.com/s/1McVV0WFa3tUSlm2Be5i_LQ
Password: tlrl