关于appear的用法和enter的用法相似，它只是在第一次渲染的时候才会起作用。看完整的代码：

别忘了引用vue.js

但是这里有一些问题：关于appear-class、 appear-to-class、 appear-active-class的相同属性那个起作用的问题。

四种情况：（与他们在style中的排列顺序有关系）

1、appear-class、 appear-to-class、 appear-active-class或者 appear-to-class、appear-class、 appear-active-class的排列顺序，此时只有appear-active-class的属性起作用。

2、appear-active-class、appear-class、 appear-to-class

此时appear-active-class的不起作用，由appear-class过渡到appear-to-class属性。

3、appear-class、appear-active-class、 appear-to-class

此时appear-class属性不起作用，由appear-active-class过渡到 appear-to-class属性。

4、 appear-to-class、 appear-active-class、appear-class

此时appear-to-class不起作用，由appear-class过渡到 appear-active-class属性。

enter也有相似的问题

总结

以上所述是小编给大家介绍的vue中appear的用法。编程之家 jb51.cc 收集整理的教程希望能对你有所帮助，如果觉得编程之家不错，可分享给好友！感谢支持。