python学习

下面这个例子是我写了个文件替换的小程序。替换所有.html文件里的图片的路径

import os
import re
t = re.compile(r'/?static/|/?media/') #re.compile

template = '/home/laowangpython/'
for root, dirs, files in os.walk(template):
    for f in files:
        if f.endswith('.html'):
            tihuan = 'http://www.cnpythoner.com/'
            filename = '%s'%(os.path.join(root,f))
            print filename
            f_a = file(filename,'r')
            info = []
            for i in f_a:
                content =  t.sub(tihuan,i)
                info.append(content)
            finfo = "".join(info)
            b = file(filename,'w')
            b.write(finfo)

原创文章：http://www.cnpythoner.com/post/17.html，转载请保留，谢谢！