お世話になります。
下記①・②の実行の違いがよくわかりません。
例えば、③下記のコードを出力する際、①は24を出力しませんが、②はします。
①
root@89a11420b9c9:~# sbt console [warn] Executing in batch mode. [warn] For better performance, hit [ENTER] to switch to interactive mode, or [warn] consider launching sbt without any commands, or explicitly passing 'shell' [info] Loading project definition from /root/project [info] Set current project to root (in build file:/root/) [info] Starting scala interpreter... [info] Welcome to Scala version 2.10.6 (OpenJDK 64-Bit Server VM, Java 1.8.0_131). Type in expressions to have them evaluated. Type :help for more information. scala> :paste // Entering paste mode (ctrl-D to finish) object Factorization extends App { var target = 24 println(target) } // Exiting paste mode, now interpreting. defined module Factorization
②
[info] Set current project to root (in build file:/root/) > run [warn] Multiple main classes detected. Run 'show discoveredMainClasses' to see the list Multiple main classes detected, select one to run: [1] Distance [2] Factorial [3] Factorization Enter number: 3 [info] Running Factorization 24 [success] Total time: 3 s, completed Jun 17, 2019 11:58:18 AM
③
object Factorization extends App { var target = 24 println(target) }
回答1件
あなたの回答
tips
プレビュー
バッドをするには、ログインかつ
こちらの条件を満たす必要があります。
退会済みユーザー
2019/06/17 17:58