中国省地区县城JSON数据免费下载网址
http://download.csdn.net/detail/smoothiemiss/9638955
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[{"code":"110000","sheng":"11","di":"00","xian":"00","name":"北京市","level":1},
{"code":"110100","sheng":"11","di":"01","xian":"00","name":"市辖区","level":2},
{"code":"110101","sheng":"11","di":"01","xian":"01","name":"东城区","level":3},
{"code":"110102","sheng":"11","di":"01","xian":"02","name":"西城区","level":3},
{"code":"110105","sheng":"11","di":"01","xian":"05","name":"朝阳区","level":3},
{"code":"110106","sheng":"11","di":"01","xian":"06","name":"丰台区","level":3},
{"code":"110107","sheng":"11","di":"01","xian":"07","name":"石景山区","level":3},
{"code":"110108","sheng":"11","di":"01","xian":"08","name":"海淀区","level":3},........