测试zlib的压缩效率

zlib.py

import zlib
import base64

filename = '1.jpg'
with open(filename, 'rb') as f:
    data = f.read()
    print len(data)
    bdata = base64.encodestring(data)
    print len(bdata)
    zdata = zlib.compress(bdata)
    print len(zdata)