package main import ( "fmt" "gorm.io/driver/mysql" "gorm.io/gorm" ) const ( USERNAME = "root" PASSWD = "oppofindx2" DATABASENAME = "Class" ) func main() { dsn := fmt.Sprintf("%s:%s@tcp(127.0.0.1:3306)/%s?charset=utf8mb4&parseTime=True&loc=Local", USERNAME, PASSWD, DATABASENAME) db := mysql.Open(dsn) print(db) } type User struct { gorm.Model Name string Age int }