[ v1-v2 ]我在使用idux-v1，我想迁移到v2，样式可以保留用v1的样式吗

[lsymy]

• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

升级到v2版本，但是不改变现在系统样式，用户无需适应，有简便的方法吗，非常感谢。

What does the proposed API look like?

和v1相同，可以使用v1默认的css
@import '@idux/components/default.css';
@import "@idux/pro/default.css";

[idux-bot]

Translation of this issue:

[v1-v2] I'm using iidux-v1, I want to migrate to v2, can the style retain the style with v1

• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

Upgraded to v2 version, but the current system style does not change, and users do not need to adapt. Is there an easy way? Thank you very much.

What does the proposed API look like?

Same as v1, you can use the default css of v1
@import '@idux/components/default.css';
@import "@idux/pro/default.css";