go lang连接mysql数据库

package main

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

func main() {
    db, err := sql.Open("mysql", "usename:password@/dbname")//对应数据库的用户名和密码以及数据库名
    defer db.Close()
    if err != nil {
        panic(err)
    } else {
        fmt.Println("success")
    }
    rows, err := db.Query("SELECT name FROM extra_baidu_qi_add_mid_01")
    if err != nil {
        panic(err)
        return
    }
    for rows.Next() {
        var name string
        err = rows.Scan(&name)
        if err != nil {
            panic(err)
        }
        fmt.Println(name)
    }
}