ip2region是准确率99.9%的ip地址定位库，0.0x毫秒级查询，数据库文件大小只有2.7M，提供了java, php, c, python,nodejs,golang查询绑定和Binary,B树,内存三种查询算法，妈妈再也不同担心我的ip地址定位！(Ip2region is a IP library address location accuracy of 99.9% millisecond, 0.0x query, database file size is only 2.7M, P