我可以停止在 Scala REPL 中执行无限循环吗? [英] Can I stop the execution of an infinite loop in Scala REPL?

问题描述

我可以停止在 Scala REPL 中执行无限循环吗?键入此内容并尝试在不退出 REPL 的情况下停止它.

Can I stop the execution of an infinite loop in Scala REPL? Type this and try to stop it without quitting the REPL.

while(true){}

我认为像 Ctrl-C 这样的东西会起作用.

I thought something like Ctrl-C would work.

推荐答案

这取决于您的 Scala 版本.如果您已经在使用 Scala 2.9，只需使用 CTRL-C 即可.命令到达 REPL 可能需要一些时间，但它会在某个时候中止您的无限循环.

It depends on your scala version. If you are already on scala 2.9 it will work by just using CTRL-C. It might take some time untile the command reaches the REPL but it will abort your infinite loop at some time.

如果您使用的是旧版本的 scala(2.9 之前).没有办法停止执行.在这些版本上，CTRL-C 将导致整个 Scala REPL 终止.

If you are on an older version of scala (before 2.9). There is no way to stop execution. On those versions CTRL-C will lead to termination of the whole scala REPL.

此更改是在 Scala 2.9.0.RC2 中引入的.有关详细信息，请参阅变更日志(部分:Repl 改进).

The change was introduced with Scala 2.9.0.RC2. See the changelog (part: Repl Improvements) for further details.

这在 Windows 上不起作用，因为 Scala Windows 发行版的 Scala REPL 键绑定用切换改写模式"覆盖了 CTRL-C.输入

This doesn't work on windows, since the Scala REPL keybindings of the scala windows distribution override CTRL-C with "toggle overtype mode". Type

 scala> :keybindings

在 Windows 系统上查看此绑定的完整注释.我猜这是 Windows 上的一个错误.

on a windows system to view the whole comment for this binding. I guess this is a bug on windows.

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