1.创建表
@"create table if not exists Person(id integer primary key autoincrement,name text,gender text,age integer,photo blob)"
2.插入
insert into Person(name,gender,age,photo)values(?,?,?,?)"
3.查找
select * from Person
4.更新
@"update Person set gender = ? where id = ?"
5.删除
delete from Person where id = ?"