84669 person learning
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Why does it appear twice? I only want data with or -, what should I do?
Yourv-ifwas added in the wrong position, it should be added on.
v-if
It would be better to useif-else
if-else
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Your
v-ifwas added in the wrong position, it should be added on.It would be better to use
if-else