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Ruby 想将 mac 地址转换 crc 值，有什么方法

praguepp · March 11, 2013 · Last by quakewang replied at March 11, 2013 · 2827 hits

想将 mac 地址转换 crc 值，有什么方法

praguepp #1 March 11, 2013

class ConvertMacToint

def initialize

end

def crc32(c) n = c.length r = 0xFFFFFFFF n.times do |i| r ^= c[i] 8.times do if (r & 1)!=0 r = (r>>1) ^ 0xEDB88320 else r >>= 1 end end end puts r ^ 0xFFFFFFFF

end

end

mac = ConvertMacToint.new mac.crc32("aa::bb::cc::dd::ee::ff") 用了下这样的方法，不知道对不

quakewang #2 March 11, 2013 
require 'zlib'
Zlib::crc32("aa::bb::cc::dd::ee::ff")
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