Ruby (NoMethodError) 即使声明了方法

Question

我正在努力学习 ruby​​。我卡在第 26 课了。Here是文件的链接。这是错误所在的代码片段:

five = 10 - 2 + 3 - 6
puts "This should be five: #{five}"

def secret_formula(started)
  jelly_bens = started * 500
  jars = jelly_beans / 1000
  crate = jars / 100
return jelly_beans, jars, crates
end

start_point = 10000
beans, jars, crates = secret_formula(start_point)

这是控制台的错误

ex26.rb:77:in `<module:Ex25>': undefined method `secret_formula' for     Ex25:Module (NoMethodError)
from ex26.rb:1:in `<main>'

Answer 1

变量声明中有几个拼写错误。首先，您有 jelly_bens(缺少“a”)而不是 jelly_beans。其次，您有 crate(单数)而不是 crates(复数)。修复这些问题后，代码将正确执行:

five = 10 - 2 + 3 - 6
puts "This should be five: #{five}"

def secret_formula(started)
  jelly_beans = started * 500
  jars = jelly_beans / 1000
  crates = jars / 100
return jelly_beans, jars, crates
end

start_point = 10000
beans, jars, crates = secret_formula(start_point)