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並前往https://www.ombulabs.com/blog/ruby/learning/method-s-arguments-pt-1.html

Exploring Method Arguments in Ruby: Part 1 - OmbuLabs

def foo(arg1) puts "arg1 is: #{arg1.inspect}" end foo(1) # => arg1 is: 1 foo # ArgumentError (wrong number of arguments (given 0, expected 1)).

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