Scala REPL：错误：＆＃39;;＆＃39;预期但字符串文字被发现

Question

这本简单的教科书REPL有什么问题？

C:\Users\abc>scala
Welcome to Scala version 2.11.1 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_45).
Type in expressions to have them evaluated.
Type :help for more information.

scala> print "Hello"
<console>:1: error: ';' expected but string literal found.
       print "Hello"
             ^

scala>

这应该打印＆＃34;你好＆＃34;

Answer 1

如果你问得好，它确实有效：

scala> object please {
     |   val print = Predef.print _
     | }
defined module please

scala> please print "Hello"
Hello

Answer 2

使用正确的语法：

scala> print("Hello")
Hello