四捨五入
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| #!/usr/bin/env ruby
# encoding: utf-8
def n425(num)
test = num.to_s.match(/(\d*)\.(\d{1})/)
test[2].to_i >= 5 ? test = test[1].to_i+1 : test = test[1].to_i
num < 0 ? test*(-1) : test
end
def n425(num)
num.to_s.to_f.round
end
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