scala - 我可以在不使用 sbt 创建项目的情况下获得 Scala REPL
问题描述
我想安装Scala REPL在windows10. 我在互联网上环顾四周，但似乎找不到如何获取scala二进制文件和REPL. 这些链接似乎建议我使用Intellij或sbt。如果我得到 sbt，那么创建项目的方法就是，例如sbt new hello，它似乎在做很多事情（见下文）！
问题 1 - 我怎样才能得到公正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- 安装后sbt，我做到sbt new hello了，在命令行中看到结果让我不知所措。下面在做什么sbt以及为什么仍未创建项目（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:\Users\manuc\Documents\manu>mkdir scala_programs
C:\Users\manuc\Documents\manu>cd scala_programs
C:\Users\manuc\Documents\manu\scala_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)\sbt\lib\local-preloaded\
Dest : C:\Users\manuc\.sbt\preloaded\
Files : *.*
Options : *.* /S /E /DCOPY:DA /COPY:DAT /R:1000000 /W:30
------------------------------------------------------------------------------
New Dir 0 C:\Program Files (x86)\sbt\lib\local-preloaded\
New Dir 0 C:\Program Files (x86)\sbt\lib\local-preloaded\com.eed3si9n\
New Dir 0 C:\Program Files (x86)\sbt\lib\local-preloaded\com.eed3si9n\gigahorse-core_2.12\
New Dir 0 C:\Program Files (x86)\sbt\lib\local-preloaded\com.eed3si9n\gigahorse-core_2.12\0.3.0\
New Dir 3 C:\Program Files (x86)\sbt\lib\local-preloaded\com.eed3si9n\gigahorse-core_2.12\0.3.0\ivys\
100% New File 3160 ivy.xml
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New Dir 3 C:\Program Files (x86)\sbt\lib\local-preloaded\com.eed3si9n\sjson-new-core_2.12\0.8.2\ivys\
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New Dir 3 C:\Program Files (x86)\sbt\lib\local-preloaded\com.eed3si9n\sjson-new-murmurhash_2.12\0.8.2\ivys\
100% New File 3233 ivy.xml
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New Dir 3 C:\Program Files (x86)\sbt\lib\local-preloaded\com.eed3si9n\sjson-new-murmurhash_2.12\0.8.2\jars\
100% New File 5265 sjson-new-murmurhash_2.12.jar
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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：你好
C:\Users\manuc\Documents\manu\scala_programs>dir
Volume in drive C is OS
Volume Serial Number is 62A2-7F68
Directory of C:\Users\manuc\Documents\manu\scala_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:\Users\manuc\Documents\manu\scala_programs>
C:\Users\manuc\Documents\manu\scala_programs>
C:\Users\manuc\Documents\manu\scala_programs>dir
Volume in drive C is OS
Volume Serial Number is 62A2-7F68
Directory of C:\Users\manuc\Documents\manu\scala_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:\Users\manuc\Documents\manu\scala_programs>
解决方案
接受的答案是错误的
在官方页面https://www.scala-lang.org/download/上，可以通过三种方式开始使用 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，然后scala在命令行中键入以启动 REPL。
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