go语言 mysql操作

import("fmt"
       "net"
       "strings"
       "database/sql"
_ "github.com/go-sql-driver/mysql"
       "encoding/json"
//"bytes"
"bytes"
       "io"
//"time"
"time"
)

type Net_tcp_pt struct {
Address      string
State        string
Program_name string
}
type Net_tcp_pt_slice struct {
N []Net_tcp_pt
}

funcinsert_net_pt_info(net_pt_info  []Net_tcp_pt , clientarr string , timenow string ,servertime string)string{

db, err := sql.Open("mysql", "root:jingxin@tcp(127.0.0.1:3306)/system_visit")
defer db.Close()
stmt_net_pt, err := db.Prepare("INSERT INTO remot_os_net_pt (remote_server_ip, remote_server_mac,remote_server_time,remote_server_address,remote_server__state,remote_server__Program_name,input_time) VALUES (?, ?, ?, ?, ?, ?, ?)")
checkErr(err)
defer  stmt_net_pt.Close()
var info_len = len(net_pt_info)
i := 0
for i = 0; i < info_len; i++{
//my_net_pt := &Net_tcp_pt{}
//err := json.Unmarshal([]byte(net_pt_info[i]), &my_net_pt)
//if err != nil{
//
//}
var my_net_pt = net_pt_info[i]
fmt.Println(my_net_pt)
stmt_net_pt.Exec(clientarr , "",servertime,my_net_pt.Address,my_net_pt.State,my_net_pt.Program_name,timenow)
}

return ""}