命令和特殊键

¥Commands and special keys

所有 REPL 实例都支持以下特殊命令：

¥The following special commands are supported by all REPL instances:

• .break：在输入多行表达式的过程中，输入 .break 命令（或按 Ctrl+C）可中止对该表达式的进一步输入或处理。

  ¥.break: When in the process of inputting a multi-line expression, enter the .break command (or press Ctrl+C) to abort further input or processing of that expression.

• .clear：将 REPL context 重置为空对象并清除任何输入的多行表达式。

  ¥.clear: Resets the REPL context to an empty object and clears any multi-line expression being input.

• .exit：关闭 I/O 流，导致 REPL 退出。

  ¥.exit: Close the I/O stream, causing the REPL to exit.

• .help：显示此特殊命令列表。

  ¥.help: Show this list of special commands.

• .save：将当前 REPL 会话保存到一个文件中：> .save ./file/to/save.js

  ¥.save: Save the current REPL session to a file: > .save ./file/to/save.js

• .load：将文件加载到当前 REPL 会话中。> .load ./file/to/load.js

  ¥.load: Load a file into the current REPL session. > .load ./file/to/load.js

• .editor：进入编辑模式（Ctrl+D 完成，Ctrl+C 取消）。

  ¥.editor: Enter editor mode (Ctrl+D to finish, Ctrl+C to cancel).

> .editor
// Entering editor mode (^D to finish, ^C to cancel)
function welcome(name) {
  return `Hello ${name}!`;
}

welcome('Node.js User');

// ^D
'Hello Node.js User!'
> 拷贝

REPL 中的以下组合键具有这些特殊效果：

¥The following key combinations in the REPL have these special effects:

• Ctrl+C:按一次时，与 .break 命令具有相同的效果。当在空白行上按两次时，效果与 .exit 命令相同。

  ¥Ctrl+C: When pressed once, has the same effect as the .break command. When pressed twice on a blank line, has the same effect as the .exit command.

• Ctrl+D:与 .exit 命令具有相同的效果。

  ¥Ctrl+D: Has the same effect as the .exit command.

• Tab：在空白行上按下时，显示全局和局部（作用域）变量。当在输入其他输入时按下时，显示相关的自动补齐选项。

  ¥Tab: When pressed on a blank line, displays global and local (scope) variables. When pressed while entering other input, displays relevant autocompletion options.

有关反向搜索的键绑定，请参阅 reverse-i-search。对于所有其他键绑定，请参阅 TTY 键绑定。

¥For key bindings related to the reverse-i-search, see reverse-i-search. For all other key bindings, see TTY keybindings.