我想在windows10上安装ScalaREPL。我在互联网上环顾四周，但我似乎找不到如何获得scala二进制文件和REPL。这些链接似乎表明我要么使用Intellij要么使用sbt。如果我得到 sbt，创建项目的方法就是例如sbt new hello似乎在做很多事情(见下文(！
问题 1 - 我怎样才能得到REPL.我不想创建项目，我只需要一个命令行工具来练习编写表达式。
问题2-安装sbt后，我做了sbt new hello，并且在命令行中看到结果时不知所措。sbt下面在做什么以及为什么仍然没有创建项目(请参阅最后的错误，Template not found for: hello？我已截断输出以保持在字数限制内
C:UsersmanucDocumentsmanu>mkdir scala_programs
C:UsersmanucDocumentsmanu>cd scala_programs
C:UsersmanucDocumentsmanuscala_programs>sbt new hello
"about to robocopy"
-------------------------------------------------------------------------------
ROBOCOPY :: Robust File Copy for Windows
-------------------------------------------------------------------------------
Started : 14 September 2018 09:43:43
Source : C:Program Files (x86)sbtliblocal-preloaded
Dest : C:Usersmanuc.sbtpreloaded
Files : *.*
Options : *.* /S /E /DCOPY:DA /COPY:DAT /R:1000000 /W:30
------------------------------------------------------------------------------
New Dir 0 C:Program Files (x86)sbtliblocal-preloaded
New Dir 0 C:Program Files (x86)sbtliblocal-preloadedcom.eed3si9n
New Dir 0 C:Program Files (x86)sbtliblocal-preloadedcom.eed3si9ngigahorse-core_2.12
New Dir 0 C:Program Files (x86)sbtliblocal-preloadedcom.eed3si9ngigahorse-core_2.12 .3.0
New Dir 3 C:Program Files (x86)sbtliblocal-preloadedcom.eed3si9ngigahorse-core_2.12 .3.0ivys
100% New File 3160 ivy.xml
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------------------------------------------------------------------------------
Total Copied Skipped Mismatch FAILED Extras
Dirs : 364 364 0 0 0 0
Files : 507 507 0 0 0 0
Bytes : 49.48 m 49.48 m 0 0 0 0
Times : 0:00:06 0:00:02 0:00:00 0:00:04
Speed : 18593244 Bytes/sec.
Speed : 1063.913 MegaBytes/min.
Ended : 14 September 2018 09:43:50
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
Getting org.scala-sbt sbt 1.2.1 (this may take some time)...
downloading file:/C:/Users/manuc/.sbt/preloaded/org.scala-sbt/sbt/1.2.1/jars/sbt.jar ...
[SUCCESSFUL ] org.scala-sbt#sbt;1.2.1!sbt.jar (57ms)
downloading file:/C:/Users/manuc/.sbt/preloaded/org.scala-lang/scala-library/2.12.6/jars/scala-library.jar ...
[SUCCESSFUL ] org.scala-lang#scala-library;2.12.6!scala-library.jar (140ms)
。 找不到模板：您好
C:UsersmanucDocumentsmanuscala_programs>dir
Volume in drive C is OS
Volume Serial Number is 62A2-7F68
Directory of C:UsersmanucDocumentsmanuscala_programs
14/09/2018 09:43 <DIR> .
14/09/2018 09:43 <DIR> ..
0 File(s) 0 bytes
2 Dir(s) 118,741,135,360 bytes free
C:UsersmanucDocumentsmanuscala_programs>
C:UsersmanucDocumentsmanuscala_programs>
C:UsersmanucDocumentsmanuscala_programs>dir
Volume in drive C is OS
Volume Serial Number is 62A2-7F68
Directory of C:UsersmanucDocumentsmanuscala_programs
14/09/2018 09:43 <DIR> .
14/09/2018 09:43 <DIR> ..
0 File(s) 0 bytes
2 Dir(s) 118,743,207,936 bytes free
C:UsersmanucDocumentsmanuscala_programs>
接受的答案是错误的
在官方页面上 https://www.scala-lang.org/download/有三种方法可以开始使用scala：下载Intellij或下载SBT。
这些选项下面是：安装 Scala 的其他方法。第一个选项是下载适用于Windows的Scala二进制文件。您可以下载、安装、将其添加到 PATH 中，以及 在命令行中键入scala以启动 REPL。
似乎对于 scala 版本2.12.6及更低版本，我可以安装二进制文件，但对于更高版本，需要Intellij或sbt。如果使用sbt，只需在控制台上键入sbt，输入c继续，然后键入console。这从REPL开始。
C:UsersmanucDocumentsmanuscala_programs>sbt
[warn] Neither build.sbt nor a 'project' directory in the current directory: C:UsersmanucDocumentsmanuscala_programs
c) continue
q) quit
? c
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
[warn] No sbt.version set in project/build.properties, base directory: C:UsersmanucDocumentsmanuscala_programs
[info] Set current project to scala_programs (in build file:/C:/Users/manuc/Documents/manu/scala_programs/)
[info] sbt server started at local:sbt-server-f91ec751458c99f5d069
sbt:scala_programs> console
[info] Updating ...
[info] Done updating.
[info] Non-compiled module 'compiler-bridge_2.12' for Scala 2.12.6. Compiling...
[info] Compilation completed in 16.744s.
[info] Starting scala interpreter...
Welcome to Scala 2.12.6 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_172).
Type in expressions for evaluation. Or try :help.
scala> val i=0;
i: Int = 0
scala>
请参阅我在以下地址的 Windows 上的 runnig Dotty 文档： https://github.com/michelou/dotty-examples/blob/master/README.md