The Date picker for Element Plus is in English by default

The solution in Figure 2 does nothing

The real solution is as follows

First, the date selector configuration component and Chinese JS file are imported separately

Register the date selector configuration component in the Components component

ZhCn is assigned to the locale variable in data

Finally, write the date selector component in the configuration component

Of course, this method also forces internationalization to be written in Chinese, so you can reduce the version of ElementPlus if you want to preserve internationalization and resolve Chinese display