Question

这是我的代码

operator_prompt: > 
What operation would you like to perform? 
1) add 
2) subtract 
3) multiple
4) divide

这是我的错误消息

/usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/psych.rb:377:in `parse': (calculator_messages.yml): could not find expected ':' while scanning a simple key at line 14 column 1 (Psych::SyntaxError)
        from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/psych.rb:377:in `parse_stream'
        from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/psych.rb:325:in `parse'
        from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/psych.rb:252:in `load'
        from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/psych.rb:471:in `block in load_file'
        from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/psych.rb:471:in `open'
        from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/psych.rb:471:in `load_file'
        from calculator.rb:2:in `<main>'

我不知道问题是什么。看起来我在YAML中使用的多行字符串完全符合我的要求。

Answer 1

你应该折叠折叠的多行标量至少一个位置。如果要保留标量中的新行，请使用|：

operator_prompt: | 
  What operation would you like to perform? 
  1) add 
  2) subtract 
  3) multiple
  4) divide

在YAML中，我不断收到有关多行字符串的以下错误消息：

1 个答案: