C++操作SQLite数据库
在使用C++操作SQLite之前，需要获得sqlite3.h，sqlite3.lib，sqlite3.dll，大家可以在LinuxIDC.com下载。并将这3个文件导入VC++工
准备工作
在使用C++操作SQLite之前，需要获得sqlite3.h，sqlite3.lib，，sqlite3.dll，大家可以在LinuxIDC.com下载。并将这3个文件导入VC++工程中。其中sqlite3.dll文件放到Debug文件夹里。
免费下载地址在
用户名与密码都是
具体下载目录在 /2012年资料/6月/16日/C++操作SQLite数据库/
SQLite API介绍int sqlite3_open(char *path,sqlite3 **db)
这个函数打开数据库，第一个参数为sqlite文件的地址，第二个参数是sqlite3的指针的指针，也就是二级指针。
返回值为SQLITE_OK则成功打开数据库。
sqlite3_close(sqlite3 *db)
这个函数关闭数据库，参数是sqlite3的指针。
sqlite3_exec(sqlite3 *db,char *sql,int l,int m,int n)
这个函数执行SQL语句，如果我们不需要返回的结果就用这个函数执行SQL语句。第一个参数是sqlite3的指针，第二个参数为执行的SQL语句，后面3个参数我们不用关心，都设为0。
sqlite3_get_table(sqlite *db,char *sql,char ***result,int *row,int *column,int k);
这个函数执行查询语句，返回我们所需要的信息。第一个参数是sqlite的指针，第二个参数是SQL语句，第三个参数是返回的信息。row是返回的行数，column是返回的列数，最后一个参数设为0就行了。
因为我们使用的是GB2312，而SQLite使用的是utf-8，所以在使用中会出现中文乱码，为了解决这个问题，我介绍两个有用的函数
utf-8转换到GB3212
GB2312到UTF-8的转换
这两个函数会用就行，需要引入windows.h头文件
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