#!/usr/bin/env python
# python 3.5.1
import bs4, urllib.request, os

def bathome(soup,idstring):
    homegrids = soup.find(id = idstring)
    a = homegrids.find_all('a')
    #print(homegrids.find_all('a'))
    count = 0
    for i in a:
        count += 1
        if count % 2 == 0:
            print('%-15s文章：%3s' % (str, i.string))
        else:
            str = '用户：%s' % i.string

url = 'http://www.bathome.net/'
web = urllib.request.urlopen(url)
soup = bs4.BeautifulSoup(web,'html.parser')
print("最新主题:")
bathome(soup, 'homegrids_c_1')
print("最新回复:")
bathome(soup, 'homegrids_c_2')
print("热门主题:")
bathome(soup, 'homegrids_c_3')
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