SQLite官方的使用介绍中附带了一个C语言的实例，该实例使用了回调的方法处理由SQL语句返回的记录集，这种回调函数的方法比较复杂，而且也并没有获得什么实质性的好处。所以在这里我推荐使用另外一组函数来完成该类操作，经实践检验证明，该方法在效率方面不存在任何问题。-Using SQLite official presentation comes with a C language instance of the callback method uses the processing of records returned by a set of SQL statements, this callback method is more complex, but also did not get any substantial benefits. So here I recommend using another set of functions to complete such operations, the practice tests show that the method in terms of efficiency there is no problem.