在网上闲逛，看到sqlite3这个数据库，想起之前搞安卓开发的时候见过这个词

了解了下，不错，正适合当前的一些需求

零散记一点：

一开始的时候发现插入速度很慢，查了下，原来要使用事务，先把所有数据送入内容，然后一次性写入硬盘文件

关于编码

如果数据库文件路径含有中文或者文件名含有中文，则打开和创建数据库出错或者乱码，

要注意转码，具体看文章

http://www.jb51.cc/article/p-tkvyjdpc-tp.html

注意是ascii转为utf8。主要调用MultiByteToWideChar

关于文档，看了一些，还是官方网站的好，比较新，讲得也比较明白，比如这段

This routine converts sql text into aprepared statementobject and returns a pointer to that object. This interface requires adatabase connectionpointer created by a prior call tosqlite3_open()and a text string containing the sql statement to be prepared. This API does not actually evaluate the sql statement. It merely prepares the sql statement for evaluation.

Think of each sql statement as a small computer program. The purpose ofsqlite3_prepare()is to compile that program into object code. Theprepared statementis the object code. Thesqlite3_step()interface then runs the object code to get a result.

Note that the use ofsqlite3_prepare()is not recommended for new applications. A newer alternative routinesqlite3_prepare_v2()should be used instead.

一下就明白这个statement为何物了