public class MYORM

    {

        public String MysqlStr = "";

        

        public MYORM()

        {

            this.MysqlStr = "Select * from Userinfo where ";

        }

        public MYORM(String SQLStr)

        {

            if (SQLStr.ToString().Length > 0)

            {

                this.MysqlStr = this.MysqlStr + SQLStr;

            }

            else

            {

                this.MysqlStr =   "Select * from Userinfo where ";

        

            }

          

        }

        public MYORM ORM_On (String Where)

        {

            this.MysqlStr = this.MysqlStr+ Where;

            return new MYORM(MysqlStr);

        }

        public MYORM ORM_AND(String Where)

        {

            this.MysqlStr = this.MysqlStr + Where;

            return new MYORM(MysqlStr);

        }

        public MYORM  And (String Where)

        {

            this.MysqlStr = this.MysqlStr + Where;

            return new MYORM(MysqlStr);

        }

    }