Question

此代码循环访问RSS源以获取新闻摘要。摘要的长度和变化都有所不同。

由于我使用每个循环row = i + 5的简单偏移来填充这些，wraplength选项有时会导致前一行超过5行，导致偏移在写下面的下一个故事时失败前一个。

有没有一种方法可以引用最近使用过的行，只是让下一个故事填充在下面？

section_start = 9 
news_root = Frame(root, bg = 'green').grid(row = section_start, column = 0, columnspan = 4, rowspan = 20, sticky = W)

url = 'http://feeds.nytimes.com/nyt/rss/Business'

response = requests.get(url)
soup = BeautifulSoup(response.content, features = 'xml')

items = soup.findAll('item')

for item in items[:5]: 
   i += 2
   news_title = Label(news_root, text = item.title.text, fg = 'mediumblue', bg = 'white', font = ('Calibri',10))
   new_title.grid(row = i, column = 0, columnspan = 4, rowspan =4, sticky = 'W')

   news_des = Label(news_root, text = item.description.text, fg = 'dimgray', bg = 'white', font = ('Calibri',8), wraplength = 500,  justify = LEFT)
   news_des.grid(row = i+5, column = 0, rowspan =4, columnspan = 10, sticky = W)

Tkinter - 找出最后一行使用的方法？

0 个答案: