I have had my experiences with dogs while growing up and living in the country side. The most important lesson I learned was to never run! Dogs were bread from Wolves; Wolves' inner instincts tell them to run after its prey until it collapses from exhaustion and than it can be killed. Dogs also follow this same instinct and will chase after anything that runs away from them! 

So the answer is to confront any dog and DO NOT RUN AWAY FROM THE DOG! 

If and when the dog attacks, be prepared with whatever you have, such your Fist, Feet, or Bike Lock and keep punching, kicking, or hitting the dog on foremost on its Nose and its Head until it either leaves you or passes out! 

Remember that your life and safety is more precious than this "now wild animal" that is attacking you, and you must preserve your health safety and Life! I know it isn't a pleasant thought, but even if you have to kill an attacking dog, you can claim Self

Defense in your defense if the attacking dog did not cease to stop attacking you!

Remember to use all the Tools you have at your disposal to defend yourself and strike as hard as you can on the nose and the head of the attacking animal no matter what!!