This article mainly introduces JavaScript to implement three-level cascading special effects. Select the provincial capital and the corresponding county drop-down box will appear. At the same time, the city drop-down box will change. It has certain reference value. Interested friends can refer to it. I hope it can help. to everyone.
//onchange():控件的value值改变后调用方法
Related recommendations:
Ajax implements detailed explanation of three-level cascade of provinces and municipalities
Detailed explanation of iframe production of three-level cascading menu
The above is the detailed content of JavaScript implements three-level cascading special effects example sharing. For more information, please follow other related articles on the PHP Chinese website!