SMS verification function and simple registration function

Simple registration function and mobile phone SMS verification function

1. The program organizes database base class operations including Access, FoxPro, Oracle, and SQLServer.

For security reasons, the verification code has been slightly modified, and the SMS verification code sending function is also included in the verification code.

This is only used when the company is working on projects. I feel that it may be more useful when doing mobile phone verification in the future, so I have sorted it out and hope that everyone can give more opinions.