[
{
"id": "11",
"pid": 0,
"deep": 0,
"name": "北京",
"pinyin": "bei jing",
"pinyin_prefix": "b",
"ext_id": "110000000000",
"ext_name": "北京市",
"childs": [
{
"id": "1101",
"pid": 11,
"deep": 1,
"name": "北京",
"pinyin": "bei jing",
"pinyin_prefix": "b",
"ext_id": "110100000000",
"ext_name": "市辖区",
"childs": [
{
"id": "110101",
"pid": 1101,
"deep": 2,
"name": "东城",
"pinyin": "dong cheng",
"pinyin_prefix":