在Python中读取JSON对象遇到问题
我有一个JSON对象，想用Python来读取，但遇到了一些问题。我有一个名为“test.txt”的文件，里面存放着收到的JSON对象。这个“test.txt”的内容如下：
{ "Sections": {"Now": "Thursday 3 February 2011 08:31", "Section": [ { "Article": [ {"audioCounter": 0, "commentsCounter": 0, "Exceprt": "Category 5 cyclone slams into flood-hit Queensland", "hasMore": "true", "ID": 44871, "important": "False", "likesCounter": 0, "photoCounter": 0, "time": "20:58", "timeStamp": "2\/2\/2011 8:59:37 PM", "timeStatus": "True", "Title": "Category 5 cyclone slams into flood-hit Queensland", "Type": "Politics", "videoCounter": 0, "viewsCounter": 2 }, {"audioCounter": 0, "commentsCounter": 0, "Exceprt": "The White House: Egypt must begin a peaceful and orderly transition of power immediately", "hasMore": "false", "ID": 44868, "important": "True", "likesCounter": 0, "photoCounter": 0, "time": "20:51", "timeStamp": "2\/2\/2011 8:52:28 PM", "timeStatus": "True", "Title": "The White House: Egypt must begin a peaceful and orderly transition of power immediately", "Type": "Politics", "videoCounter": 0, "viewsCounter": 0 }, {"audioCounter": 0, "commentsCounter": 0, "Exceprt": "Bazzi: Berri endeavors to facilitate cabinet formation", "hasMore": "true", "ID": 44866, "important": "False", "likesCounter": 0, "photoCounter": 0, "time": "20:47", "timeStamp": "2\/2\/2011 8:48:18 PM", "timeStatus": "True", "Title": "Bazzi: Berri endeavors to facilitate cabinet formation", "Type": "Politics", "videoCounter": 0, "viewsCounter": 0 }, {"audioCounter": 0, "commentsCounter": 0, "Exceprt": "Saker via Future News: Opening files era has ended, Gen. Aoun can\u0027t open any corruption files since his allies were the pioneers of corruption", "hasMore": "false", "ID": 44865, "important": "False", "likesCounter": 0, "photoCounter": 0, "time": "20:41", "timeStamp": "2\/2\/2011 8:45:36 PM", "timeStatus": "True", "Title": "Saker via Future News: Opening files era has ended, Gen. Aoun can\u0027t open any corruption files since his allies were the pioneers of corruption", "Type": "Politics", "videoCounter": 0, "viewsCounter": 0 }, {"audioCounter": 0, "commentsCounter": 0, "Exceprt": "White House deplores violence in Egypt", "hasMore": "true", "ID": 44857, "important": "False", "likesCounter": 0, "photoCounter": 0, "time": "20:28", "timeStamp": "2\/2\/2011 8:29:26 PM", "timeStatus": "True", "Title": "White House deplores violence in Egypt", "Type": "Politics", "videoCounter": 0, "viewsCounter": 1 }, {"audioCounter": 0, "commentsCounter": 0, "Exceprt": "Baabda sources via MTV: President Suleiman works on a consensus curriculum hoping for the formation of a national unity cabinet, if this does not happen, the cabinet will be political inlaid with technocrats", "hasMore": "false", "ID": 44855, "important": "False", "likesCounter": 0, "photoCounter": 0, "time": "20:20", "timeStamp": "2\/2\/2011 8:23:14 PM", "timeStatus": "True", "Title": "Baabda sources via MTV: President Suleiman works on a consensus curriculum hoping for the formation of a national unity cabinet, if this does not happen, the cabinet will be political inlaid with technocrats", "Type": "Politics", "videoCounter": 0, "viewsCounter": 0 }, {"audioCounter": 0, "commentsCounter": 0, "Exceprt": "An American senior official to Reuters: expects pressure on Mubarak by the army after street violence", "hasMore": "false", "ID": 44853, "important": "True", "likesCounter": 0, "photoCounter": 0, "time": "20:18", "timeStamp": "2\/2\/2011 8:20:14 PM", "timeStatus": "True", "Title": "An American senior official to Reuters: expects pressure on Mubarak by the army after street violence", "Type": "Politics", "videoCounter": 0, "viewsCounter": 0 }, {"audioCounter": 0, "commentsCounter": 0, "Exceprt": "The disappearance of the Al-Arabia correspondence Ahmed Abdullah in Egypt after clashing with Mubarak supporters", "hasMore": "false", "ID": 44851, "important": "True", "likesCounter": 0, "photoCounter": 0, "time": "20:17", "timeStamp": "2\/2\/2011 8:18:28 PM", "timeStatus": "True", "Title": "The disappearance of the Al-Arabia correspondence Ahmed Abdullah in Egypt after clashing with Mubarak supporters", "Type": "Politics", "videoCounter": 0, "viewsCounter": 0 } ], "ID": 22, "Name": "EN Live", "totalNews": 2997 } ] }}
我的Python脚本：
import json;
f = open("test.txt");
d = json.load(f);
for i in d:
print(i);
我的输出结果：
Sections
这就是我得到的全部内容。我希望能得到一个“文章”的列表以及它们的属性。我试着查看官方的Python文档，但觉得有点模糊。
谢谢
3 个回答
0
这段话的意思是，你可以这样做：
for i in d.items():
print(i);
或者这样做：
for k,v in d.items():
print k, v
在这里，你需要把键和对应的值放到两个不同的变量里。
d 是一个 Python 字典，你需要遍历它的键和值。
0
在你的JSON数据中，Sections是最外层的数据，只出现一次。因此，输出结果也是我们预期的，因为 json.load 会把这个列表解析成一个Python对象。
你可以通过对Sections进行一个循环，然后对每个section再进行一个循环，来获取每篇文章。
5
在你的 for i in d 循环中，你是在遍历一个字典的键。这个字典里只有一个顶层的键，也就是 'Sections'，所以你只看到这个输出。
我不太清楚你的 JSON 结构是怎样的，但看起来你想要的是这样的：
for aritcle in d['Sections']['Section'][0]['Article']:
print article
这样就能把所有的文章都打印出来了。