urllib下载在线目录的内容

这段代码对我有用。我只是对其进行了一点修改，因为您正在复制每个ppt文件。

from urllib2 import urlopenimport reurlpath =urlopen('http://www.divms.uiowa.edu/~jni/courses/ProgrammignInCobol/presentation/')string = urlpath.read().depre('utf-8')pattern = re.compile('ch[0-9]*.ppt"') #the pattern actually creates duplicates in the listfilelist = pattern.findall(string)print(filelist)for filename in filelist:    filename=filename[:-1]    remotefile = urlopen('http://www.divms.uiowa.edu/~jni/courses/ProgrammignInCobol/presentation/' + filename)    localfile = open(filename,'wb')    localfile.write(remotefile.read())    localfile.close()    remotefile.close()