Version

3.2.25

Reproduction link

sfc.vuejs.org/

Steps to reproduce

直接访问重现链接即可

What is expected?

模板上不要出现双引号

What is actually happening?

模板上出现了双引号

模板上使用数据时加上value没问题

Your fn is not returning a reactive object so Vue won't automatically unwrap the internal computed refs. You are seeing double quotes as it's the result of stringifying a ref object.