Scala Seq创建简单的Spark DataFrame

val goalsDF = Seq(
  ("messi", 2),
  ("messi", 1),
  ("pele", 3),
  ("pele", 1)
).toDF("name", "goals")

goalsDF.show()

+-----+-----+
| name|goals|
+-----+-----+
|messi|    2|
|messi|    1|
| pele|    3|
| pele|    1|
+-----+-----+