the official website can configure other pages to be used directly in main.js.

I think he wrote it wrong. I think it should be the name of the quoted package. My name is VuePreview . The name of the package is whatever you define, and the name is written there, ok.
I have also seen another way to write page tags, not using < vue-preview > is a direct img tag, and then there is a click event called $preview.open () . Here I always report wrong, and it is useless to change my name.