go连接mysql数据库：原生写法

package main

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

func main(){
	db,err:= sql.Open("mysql","root:123456@tcp(localhost:3306)/test")
	if err != nil {
		panic(err)
	}
	defer db.Close()
	if err :=db.Ping(); err != nil {
		fmt.Println("connect 2 mysql failed...")
		panic(err)
	}
	db.SetMaxOpenConns(10)
	db.SetMaxIdleConns(10)
	fmt.Println("succeed connect 2 mysql...")
}