Provincial and municipal selectors are often used, but the provincial and municipal selectors found online are not very practical, so I wrote the provincial and municipal selectors for mobile terminals by myself.
interface:
Source code structure:
Demo address: http://component.cform.cn/city/
Demo QR code:
Source code address: http://component.cform.cn/city/city.zip
The next article will introduce in detail the principles and implementation of provincial and municipal selectors.