python time模块练手小程序

   
   
   
   

    
    
    
    
    #
    
    
    
    -*-coding:utf8 -*-
    
    
    
     
    
    
    
    import
    
    
    
     httplib as client 
    
    
    
    import
    
    
    
     time 
    
    
    
    import
    
    
    
     os 
    
    
    
    def
    
    
    
     get_webservertime(host): conn
    
    
    
    =
    
    
    
    client.HTTPConnection(host) conn.request(
    
    
    
    "
    
    
    
    GET
    
    
    
    "
    
    
    
    , 
    
    
    
    "
    
    
    
    /
    
    
    
    "
    
    
    
    ) r
    
    
    
    =
    
    
    
    conn.getresponse() ts
    
    
    
    =
    
    
    
     r.getheader(
    
    
    
    '
    
    
    
    date
    
    
    
    '
    
    
    
    ) 
    
    
    
    #
    
    
    
    获取http头date部分
    
    
    
     
    
    
    
     
    
    
    
    #
    
    
    
    将GMT时间转换成北京时间
    
    
    
     
    
    
    
     local_time
    
    
    
    =
    
    
    
     time.mktime(time.strptime(ts[
    
    
    
    5
    
    
    
    :], 
    
    
    
    "
    
    
    
    %d %b %Y %H:%M:%S GMT
    
    
    
    "
    
    
    
    )) 
    
    
    
    +
    
    
    
     (
    
    
    
    8
    
    
    
     
    
    
    
    *
    
    
    
     
    
    
    
    60
    
    
    
     
    
    
    
    *
    
    
    
     
    
    
    
    60
    
    
    
    ) ltime 
    
    
    
    =
    
    
    
     time.gmtime(local_time) 
    
    
    
    #
    
    
    
    使用date设置时间
    
    
    
     
    
    
    
     dat 
    
    
    
    =
    
    
    
     
    
    
    
    '
    
    
    
    date -u -s "%d-%d-%d %d:%d:%d" 
    
    
    
    '
    
    
    
     
    
    
    
    %
    
    
    
     (ltime.tm_year,ltime.tm_mon,ltime.tm_mday,ltime.tm_hour,ltime.tm_min,ltime.tm_sec) os.system(dat) get_webservertime(
    
    
    
    '
    
    
    
    www.baidu.com
    
    
    
    '
    
    
    
    )
   
   
   
   

ps. 使用firebug可以直观看到http头的数据结构