Based layui framework exquisitely provinces dropdown menu to select three linkage,
Support three linkage city selection, click to submit a selected value code.
Example is as follows:
Resource Links: https://pan.baidu.com/s/1s6l8iDBEP1UOt28O-5jVLg extraction code: y4d3
Tags: three linkage provinces, municipalities, cities drop-down box to select the value