01 Jul '12, 12pm

Best Ruby Guide, Ruby Tutorial:

# p014constructs.rb # In Ruby, nil and false evaluate to false, # everything else (including true, 0) means true # nil is an actual object # if else end var = 5 if var > 4 puts "Variable is greater than 4" puts "I can have multiple statements here" if var == 5 puts "Nested if else possible" else puts "Too cool" end else puts "Variable is not greater than 5" puts "I can have multiple statements here" end

Full article: http://rubylearning.com/satishtalim/simple_constructs.html

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下载 Ruby - Ruby 官方网站:

ruby-lang.org 02 Jul '12, 7am

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blog.rubybestpractices.com 30 Jun '12, 11pm

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akitaonrails.com 29 Jun '12, 10pm

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akitaonrails.com 29 Jun '12, 9pm

Note outra diferença: normalmente dentro do resultados de uma condicional você atribui alguma valor à uma variável. Se o o...