search.py 文件源码

def getSuccessors(self, state):
     """
       state: Search state

     For a given state, this should return a list of triples,
     (successor, action, stepCost), where 'successor' is a
     successor to the current state, 'action' is the action
     required to get there, and 'stepCost' is the incremental
     cost of expanding to that successor
     """
     util.raiseNotDefined()