摘要：
Traits as Interfaces Let’s start with something familiar. A Scala trait can work exactly like a Java interface. For example: A subclass can provide an 阅读全文
2016年9月17日
摘要：
Reading Lines To read all lines from a file, call the getLines method on a scala.io.Source object: The result is an iterator (see Chapter 13). You can 阅读全文
