Programming Ruby讀書筆記(三)

來源:互聯網
上載者:User

Ruby的標準類型:

A.數字

class Test   3.times    { print "X " } 1.upto(5)   { |i| print i, " " } 99.downto(95) { |i| print i, " " } 50.step(80,5) { |i| print i, " " }   a = "23" b = "34" puts " " puts a + b puts Integer(a) + Integer(b)  end

輸出:

X X X 1 2 3 4 5 99 98 97 96 95 50 55 60 65 70 75 80233457

B.字串

class Test   puts "That's right" puts %Q/That's right/  puts 'escape using ""' puts %q/escape using ""/  end  puts "now is #{        def the(a)         'the ' + a        end        the('time')       } for all good coders..."

輸出:

That's rightescape using ""That's rightescape using ""now is the time for all good coders...

操作字串

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