im planning to use both of motor shield and enhanced 2A stepper because maybe i will use another servo motor.
You don't need a motor shield to drive a servo. Just an alternate power source, connected to the servo, with ground connected to the Arduino, too.
please put end bracket at the end of link...i dont know why the bracket dissaperad...
Because you aren't putting the parens inside the url tags.
actually i don't no how to connect Enhanced 2A Stepper Motor Driver with my arduino rev3
You don't have the stepper motor driver connected to the Arduino, and the motor won't move when you run that code. Small wonder.