标准类型:A.数字
Test
3.times { pr
"X " }
1.upto(5) { |i| pr i, " " }
99.downto(95) { |i| pr i, " " }
50.step(80,5) { |i| pr i, " " }
a = "23"
b = "34"
puts " "
puts a + b
puts Integer(a) + Integer(b)
end输出:
X X X 1 2 3 4 5 99 98 97 96 95 50 55 60 65 70 75 80
2334
57B.
串 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..."输出:
That's right
escape using ""
That's right
escape using ""
now is the time for all good coders...操作
串
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