python - 正则表达式求教

Question

{"author":{"user_id":640703312,"user_name":"FOREVERR\u5b89\u5b89","props":null},"content":{"post_id":32334914000,"is_anonym":false,"forum_id":874949,"thread_id":2108034524,"content":"287226800@qq.com    \u8c22\u8c22~<img class=\"BDE_Smiley\" src=\"http:\/\/static.tieba.baidu.com\/tb\/editor\/images\/jd\/j_0043.gif\" width=\"25\" height=\"25\">","post_no":118,"type":"0","comment_num":0,"props":null,"post_index":23,"pb_tpoint":null}}

<type 'str'>


求教如何用正则获取FOREVERR\u5b89\u5b89

Answer 1

Berdasarkan keteraturan "user_name":"(.[^"]*)" Ini boleh diekstrak.
Rentetan ini ialah rentetan json, jadi sebaiknya gunakan json untuk menghuraikan

import json
jsonobj = json.loads(jsonstr)
username = jsonobj['author']['user_name'] # 获取user_name内容