我正在尝试使用wholeTextFiles的spark来读取目录，我的文件RDD包含(String,String)，其中第一个String是我的文件名，第二个是我的文件内容。
我想将此RDD映射到另一个只包含我文件内容的RDD，我该怎么办？
谢谢！
val file = sc.wholeTextFiles("./Desktop/093")
file.first
res0: (String, String) =
(file:/Users/Desktop/093/nc-no-na.clusters.093.001.txt,"199 197 5 5 168 0 0.932125 11101111000000110100000000000000000000000000001010100000011100001000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001101101111100000000000000000011100000000000000000000000000100000111011000000000000000000000000000000000000000000000000000000000000000011110010111001001110000000011100000000010000000000000000000000000010000000000000000000000000000000000000000011111111111101010111000000000000000000000000000000000000000000000000000000000000000001100000000000000000000000000000000000000000101110101110101011010000000000000000001100001100000011110000000000000000000011111011110011100...
答案 0 :(得分：0)
例如：
import org.apache.spark.rdd.RDD
val content: RDD[String] = file.map(_._2)