{
"id": "2016021715272727370",
"text": "2016017号",
"state": "open",
"attributes": {
"url": "scxx_presale_show.php?projid=15796&id=2016021715272727370"
},
"children": [
{
"id": "0150050078004",
"text": "3号住宅楼",
"state": "open",
"attributes": {
"url": "scxx_floor_show.php?projid=15796&id=0150050078004"
},
"children": [
{
"id": "0150050078004",
"text": "地下室或商铺",
"attributes": {
"url": "scxx_subroom_show.php?sub=00&id=0150050078004"
}
},
{
"id": "0150050078004",
"text": "01单元",
"attributes": {
"url": "scxx_subroom_show.php?sub=01&id=0150050078004"
}
},
{
"id": "0150050078004",
"text": "02单元",
"attributes": {
"url": "scxx_subroom_show.php?sub=02&id=0150050078004"
}
}
]
}
]
},
{
"id": "2016022309583828846",
"text": "2016023号",
"state": "open",
"attributes": {
"url": "scxx_presale_show.php?projid=15796&id=2016022309583828846"
},
"children": [
{
"id": "0150050078004",
"text": "3号住宅楼",
"state": "open",
"attributes": {
"url": "scxx_floor_show.php?projid=15796&id=0150050078004"
},
"children": [
{
"id": "0150050078004",
"text": "地下室或商铺",
"attributes": {
"url": "scxx_subroom_show.php?sub=00&id=0150050078004"
}
},
{
"id": "0150050078004",
"text": "01单元",
"attributes": {
"url": "scxx_subroom_show.php?sub=01&id=0150050078004"
}
},
{
"id": "0150050078004",
"text": "02单元",
"attributes": {
"url": "scxx_subroom_show.php?sub=02&id=0150050078004"
}
}
]
},
{
"id": "0150050078005",
"text": "5号住宅楼",
"state": "open",
"attributes": {
"url": "scxx_floor_show.php?projid=15796&id=0150050078005"
},
"children": [
{
"id": "0150050078005",
"text": "地下室或商铺",
"attributes": {
"url": "scxx_subroom_show.php?sub=00&id=0150050078005"
}
},
{
"id": "0150050078005",
"text": "01单元",
"attributes": {
"url": "scxx_subroom_show.php?sub=01&id=0150050078005"
}
},
{
"id": "0150050078005",
"text": "02单元",
"attributes": {
"url": "scxx_subroom_show.php?sub=02&id=0150050078005"
}
}
]
},
{
"id": "0150050078006",
"text": "6号住宅楼",
"state": "open",
"attributes": {
"url": "scxx_floor_show.php?projid=15796&id=0150050078006"
},
"children": [
{
"id": "0150050078006",
"text": "地下室或商铺",
"attributes": {
"url": "scxx_subroom_show.php?sub=00&id=0150050078006"
}
},
{
"id": "0150050078006",
"text": "01单元",
"attributes": {
"url": "scxx_subroom_show.php?sub=01&id=0150050078006"
}
},
{
"id": "0150050078006",
"text": "02单元",
"attributes": {
"url": "scxx_subroom_show.php?sub=02&id=0150050078006"
}
}
]
},
{
"id": "0150050078008",
"text": "7号住宅楼",
"state": "open",
"attributes": {
"url": "scxx_floor_show.php?projid=15796&id=0150050078008"
},
"children": [
{
"id": "0150050078008",
"text": "地下室或商铺",
"attributes": {
"url": "scxx_subroom_show.php?sub=00&id=0150050078008"
}
},
{
"id": "0150050078008",
"text": "01单元",
"attributes": {
"url": "scxx_subroom_show.php?sub=01&id=0150050078008"
}
},
{
"id": "0150050078008",
"text": "02单元",
"attributes": {
"url": "scxx_subroom_show.php?sub=02&id=0150050078008"
}
}
]
},
{
"id": "0150050078009",
"text": "8号住宅楼",
"state": "open",
"attributes": {
"url": "scxx_floor_show.php?projid=15796&id=0150050078009"
},
"children": [
{
"id": "0150050078009",
"text": "地下室或商铺",
"attributes": {
"url": "scxx_subroom_show.php?sub=00&id=0150050078009"
}
},
{
"id": "0150050078009",
"text": "01单元",
"attributes": {
"url": "scxx_subroom_show.php?sub=01&id=0150050078009"
}
}
]
}
]
}
}这样直接粘贴出大段代码的问题既不利于想帮你解决问题的人查看，而且给出的代码格式上还有些问题；因此提问还是得先学会梳理问题本身，找到问题核心后再拟一个简单的模型示例后提出。
回到你的问题：整体是个json，可以先将 json 转换为 Python 的 str，再用正则提取所有url，假设你的 json 数据来自网络，可以参考如下：
import json
import urllib
import re
json_str = urllib.request.urlopen(...).decode() #获取 json 字符串
pattern = re.compile('"url": "(.+?)"') #设定正则模式
result = pattern.findall(json_str) #获得结果测试了一下你的数据：
>>> print(result)
['scxx_presale_show.php?projid=15796&id=2016021715272727370', 'scxx_floor_show.php?projid=15796&id=0150050078004', 'scxx_subroom_show.php?sub=00&id=0150050078004', 'scxx_subroom_show.php?sub=01&id=0150050078004', 'scxx_subroom_show.php?sub=02&id=0150050078004', 'scxx_presale_show.php?projid=15796&id=2016022309583828846', 'scxx_floor_show.php?projid=15796&id=0150050078004', 'scxx_subroom_show.php?sub=00&id=0150050078004', 'scxx_subroom_show.php?sub=01&id=0150050078004', 'scxx_subroom_show.php?sub=02&id=0150050078004', 'scxx_floor_show.php?projid=15796&id=0150050078005', 'scxx_subroom_show.php?sub=00&id=0150050078005', 'scxx_subroom_show.php?sub=01&id=0150050078005', 'scxx_subroom_show.php?sub=02&id=0150050078005', 'scxx_floor_show.php?projid=15796&id=0150050078006', 'scxx_subroom_show.php?sub=00&id=0150050078006', 'scxx_subroom_show.php?sub=01&id=0150050078006', 'scxx_subroom_show.php?sub=02&id=0150050078006', 'scxx_floor_show.php?projid=15796&id=0150050078008', 'scxx_subroom_show.php?sub=00&id=0150050078008', 'scxx_subroom_show.php?sub=01&id=0150050078008', 'scxx_subroom_show.php?sub=02&id=0150050078008', 'scxx_floor_show.php?projid=15796&id=0150050078009', 'scxx_subroom_show.php?sub=00&id=0150050078009', 'scxx_subroom_show.php?sub=01&id=0150050078009']我猜你的意思是不确定是否有嵌套的children属性？
如果不是，打回去重新提问。
难道不能用json.loads(str)?