scala-Simple pattern Matching

    Csvmap.get (Row) match    {case      Some (y:map[string, String]) = = Y.get (list) Case      None + = None    }

Csvmap's data type is: Map[string, map[string, String]]

Now I want to implement a string that is extracted from the row and list keywords.

I first use the first keyword row, extract a option[map[string, String]] type of data, if I want to continue to extract data next

Then you have to convert map[string, string] data into map[string, string] type of data, then I need to remove some this coat.

To use pattern matching. Remove some directly

scala-Simple pattern Matching