BMKDrivingStep 成员列表

成员的完整列表，这些成员属于 BMKDrivingStep,包括所有继承而来的类成员

	direction	BMKDrivingStep
	distance	BMKRouteStep
	duration	BMKRouteStep
	entrace	BMKDrivingStep
	entraceInstruction	BMKDrivingStep
	exit	BMKDrivingStep
	exitInstruction	BMKDrivingStep
	hasTrafficsInfo	BMKDrivingStep
	instruction	BMKDrivingStep
	numTurns	BMKDrivingStep
	points	BMKRouteStep
	pointsCount	BMKRouteStep
	roadLevel	BMKDrivingStep
	roadName	BMKDrivingStep
	traffics	BMKDrivingStep