A.val temp=graphhdfs.mapVertices((x1,x2)=>x2.toInt*3).vertices.take(10)
B.val temp=graphhdfs.mapEdges((x1,x2)=>x2.toInt*3).vertices.take(10)
C.val temp=graphhdfs.mapVertices(x=>x._2.toInt*3).vertices.take(10)
D.val temp=graphhdfs.map(x=>x._1.toInt*3).vertices.take(10)