数据库连接字符串格式即DSN (Data Source Name)格式为：
[username[:password]@][protocol[(address)]]/dbname[?param1=value1&...¶mN=valueN]
详情请参考https://github.com/go-sql-driver/mysql#dsn-data-source-name
package main
import (
"github.com/jinzhu/gorm"
_ "github.com/jinzhu/gorm/dialects/mysql"
)
func main() {
//打开数据库连接
db, _ := gorm.Open("mysql", "demo:123456@(localhost)/demo?charset=utf8&parseTime=True&loc=Local")
//关闭数据库连接
defer db.Close()
}