使用js编写的从xml文件中读取省市区数据，实现省市区三级联动-Javasrcipt prepared using urban data read from xml file in the province to achieve three linkage provinces

最新全国省市区县街道json数据 网络搜集整理 希望对大家有所帮助(The latest JSON data of district and county streets in the latest national provinces and cities Network collation hopes to help people)