Python工具箱系列(三十九)

import zlib

# 压缩一段中文
originstr = '神龟虽寿，犹有竟时；腾蛇乘雾，终为土灰。老骥伏枥，志在千里；烈士暮年，壮心不已。盈缩之期，不但在天；养怡之福，可得永年。幸甚至哉，歌以咏志。'
print(len(originstr))
str_compression = zlib.compress(originstr.encode('utf-8'), level=8)
print(len(str_compression))
print(str_compression)
decompress_str = zlib.decompress(str_compression)
print(decompress_str)
print(decompress_str.decode('utf-8')) 

# 压缩一段英文
originstr = 'The World Health Organization officially declared on Saturday that the current multi-country monkeypox outbreak outside of the traditional endemic areas in Africa has already turned into a public health emergency of international concern (PHEIC).'
print(len(originstr))
str_compression = zlib.compress(originstr.encode('utf-8'), level=8)
print(len(str_compression))
print(str_compression)
decompress_str = zlib.decompress(str_compression)
print(decompress_str)
print(decompress_str.decode('utf-8'))

import zlib

def compress(inputfile,outputfile):
    with open(inputfile,'rb') as input:
        with open(outputfile,'wb') as output:
            data = input.read()
            compressdata = zlib.compress(data)
            output.write(compressdata)

def decompress(inputfile,outputfile):
   with open(inputfile,'rb') as input:
        with open(outputfile,'wb') as output:
            data = input.read()
            compressdata = zlib.decompress(data)
            output.write(compressdata)

compress(r'd:devsensor.dat',r'd:devsensor.zlib')
decompress(r'd:devsensor.zlib',r'd:devsensor_d.dat')