python 互联网编程

zope\plone\pylons\web2py\cherrypy\webware:web框架 pyjamas soap:web service Ironpython 1\ socket(AF_INET,SOCK_STREAM) SOCK_DGRAM AF_UNIF sobj.bind() sobj.listen con,dre=sobj.accept() con.receive() con.send() con.close() socket(xx) sobj.connect() sobj.send() sobj.recv() 2 返回字符串列表中的最长长度： labelsize = max(len(x) for x in labels) + 2 3 if input("xx") in ['y','Y']: 4 urllib.request.urlretrieve(remoteaddr,localfilename) 从远端地址下载文件存储到localfilename 5、ftp.retrbinary二进制方式下载，retrlines文本方式下载 6、localdir=(len(sys.argv)>1 and sys.argv[1]) or '.' ###传参默认值 localdir = (len(sys.argv) > 1 and sys.argv[1]) or '.' cleanall = input('Clean local directory first? ')[:1] in ['y', 'Y'] ##获取用户输入 7、删除文件夹： for localname in os.listdir(localdir): # try to delete all locals try: # first, to remove old files print('deleting local', localname) # os.listdir omits . and .. os.remove(os.path.join(localdir, localname)) except: print('cannot delete local', localname) 8、 from mimetypes import guess_type mimetype,encoding=guess_type(filepath) mimetype=mimetype or "?/?" maintype = mimetype.split('/')[0] 9、收取邮件：

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10、email.utils 邮件发送中的日期格式：

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11、发送邮件：

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12、mimetype

mimetypes.guess_type(filename) xxx.txt--> text/plain

mimetypes.guess_extension(contype) text/plain-->xxx.txt

13、email.message

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parser

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14、发送带附件邮件：

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接收邮件解析：

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15、http.client.HTTPConnection

16 urllib.request.urlopen

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