reduceByKey(_+_)是reduceByKey((x,y) => x+y)的一个 简洁的形式
*/
val rdd08 = sc.parallelize(List((1, 1),...(1, 4),(1, 3), (3, 7), (3, 5)))
val rdd08_1 = rdd08.reduceByKey((x, y) => x + y)
println("reduceByKey...用法 " + rdd08_1.collect().mkString(","))
sc.stop()
}
def myunion(rdd05: RDD[Int], rdd06: RDD