Writing practical province and city selectors in javascript_javascript skills

Province and city selectors are often used by everyone, but the province and city selectors found online are not very practical, so I wrote a mobile province and city selector 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 the principle and implementation of the province and city selector in detail.