#!/usr/bin/env python3# coding=utf-8#login to school network#if add parameter,will logoutimport sys    #for sys.argvimport urllibimport urllib.requestimport urllib.parseurl = 'http://xxx'def login():    action = 'login'    username = 'xxx'    #可將密碼等保存至文件    passWord = 'xxx'    ac_id = 6    type = 1    data = {'action': action,        'username': username,        'password': password,        'ac_id': ac_id,        'type':type        }    postdata=urllib.parse.urlencode(data).encode('utf-8')    try:        request=urllib.request.Request(url, postdata)        response=urllib.request.urlopen(request)        if(response.read().decode('utf-8').find('login_ok')>0):            PRint('login_ok')    except Exception as e:        print('oops!Please check network!')        print(e)def logout():    logoutdata = {'action': 'logout'}    postdata=urllib.parse.urlencode(logoutdata).encode('utf-8')    request=urllib.request.Request(url, postdata)    response=urllib.request.urlopen(request)    print(response.read().decode('utf-8')) #根據(jù)情況解碼if __name__ == '__main__':    if len(sys.argv) == 1:        login()    else:        logout()