字符串压缩

ruby 代码

require "zlib"
include Zlib

# deflate 压缩
# inflate 解压

long_string = ("abcde"*71 + "defghi"*79 + "ghijkl"*113)*371

puts long_string.size # 559097

puts "==#{Deflate}=="

s1 = Deflate.deflate(long_string, BEST_SPEED)
s2 = Deflate.deflate(long_string)
s3 = Deflate.deflate(long_string, DEFAULT_COMPRESSION)
s4 = Deflate.deflate(long_string, BEST_COMPRESSION)

puts s1.size # 4188
puts s2.size # 3568
puts s3.size # 3568
puts s4.size # 2120

puts "==#{Inflate}=="

s5 = Inflate.inflate(s1)
s6 = Inflate.inflate(s1)
s7 = Inflate.inflate(s1)
s8 = Inflate.inflate(s1)

puts s5.size # 559097
puts s6.size # 559097
puts s7.size # 559097
puts s8.size # 559097

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