通过引入database/sql和github.com/go-sql-driver/mysql来操作数据库:

package main
import (
    "database/sql"
    "fmt"
    _ "github.com/go-sql-driver/mysql"
)

var (
    dbhostip="127.0.0.1"
    dbusername="root"
    dbpassword=""
    dbname="test"
)
func checkErr(err error){
    if err!=nil{
        panic(err)
    }
}
func main(){
    db,err:=sql.Open("mysql",dbusername+":"+dbpassword+"@tcp("+dbhostip+")/"+dbname+"?charset=utf8")
    checkErr(err)
    result,err:=db.Exec("insert into user(user_name,time) values(12,12)")
    checkErr(err)
    fmt.Println(result.LastInsertId())
}