没有实现官方驱动，但提供了接口实现
sql.Register 注册数据库驱动
在init中执行驱动的注册
driver.Driver 定义数据库接口
open 用于返回数据库连接driver.Conn 数据库连接的接口定义
Prepare 返回sql执行状态，可进行查询和删除Close 关闭当前连接，驱动实现了连接池Begin 开启一个事务连接 Tx ,可通过事务进行查询和更新，回滚，递交driver.Stmt 与连接相关，只用于goroutine
Close 关闭连接状态，返回query 有效行NumInput 返回预留参数的个数，或 -1Exec 执行sql，传入insert/update，返回ResultQuery 执行sql,传入select ，返回Rowsdriver.Tx 事务提交或回滚，实现Commit 和 Rollback
driver.Execer 实现 Exec
driver.Result 结果集定义，实现LasetInsertId,RowsAffected
driver.Rows 查询集定义，Columns/Close/Next
driver.RowsAffected == type:int64
driver.Value == interface{} 万能接口
driver.ValueConverter { ConvertValue }
driver.sql DB 结构,提供高阶接口，简化数据库操作，实现了连接池
type DB struct { driver driver.Driver dsn string mu sync.Mutex // protects freeConn and closed freeConn []driver.Conn closed bool }repo： https://github.com/go-sql-driver/mysql
package main // 尚未测试 import ( "database/sql" "fmt" //"time" _ "github.com/go-sql-driver/mysql" ) func main() { db, err := sql.Open("mysql", "astaxie:astaxie@/test?charset=utf8") checkErr(err) //插入数据 stmt, err := db.Prepare("INSERT userinfo SET username=?,departname=?,created=?") checkErr(err) res, err := stmt.Exec("astaxie", "研发部门", "2012-12-09") checkErr(err) id, err := res.LastInsertId() checkErr(err) fmt.Println(id) //更新数据 stmt, err = db.Prepare("update userinfo set username=? where uid=?") checkErr(err) res, err = stmt.Exec("astaxieupdate", id) checkErr(err) affect, err := res.RowsAffected() checkErr(err) fmt.Println(affect) //查询数据 rows, err := db.Query("SELECT * FROM userinfo") checkErr(err) for rows.Next() { var uid int var username string var department string var created string err = rows.Scan(&uid, &username, &department, &created) checkErr(err) fmt.Println(uid) fmt.Println(username) fmt.Println(department) fmt.Println(created) } //删除数据 stmt, err = db.Prepare("delete from userinfo where uid=?") checkErr(err) res, err = stmt.Exec(id) checkErr(err) affect, err = res.RowsAffected() checkErr(err) fmt.Println(affect) db.Close() } func checkErr(err error) { if err != nil { panic(err) } }