refactor: demo 优化

[visiky]

No description provided.

[github-actions]

🎊 PR Preview 7327f5d has been successfully built and deployed to https://antvis-G2Plot-preview-pr-1948.surge.sh

🕐 Build time: 529.991s

_{🤖 By surge-preview}

[coveralls]

Pull Request Test Coverage Report for Build 374118191

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 96.622%

---

Totals
Change from base Build 374046681:	0.0%
Covered Lines:	3936
Relevant Lines:	3974

---

💛 - Coveralls

[lgtm-com]

This pull request introduces 1 alert when merging ee78511 into 046e994 - view on LGTM.com

new alerts:

• 1 for Comparison between inconvertible types

[lgtm-com]

This pull request introduces 1 alert when merging 0ef58a6 into 6a8e921 - view on LGTM.com

new alerts:

• 1 for Comparison between inconvertible types

[lgtm-com]

This pull request introduces 1 alert when merging c3effad into c8d5193 - view on LGTM.com

new alerts:

• 1 for Comparison between inconvertible types

[lgtm-com]

This pull request introduces 1 alert when merging dc250ad into 909665a - view on LGTM.com

new alerts:

• 1 for Comparison between inconvertible types

[lgtm-com]

This pull request introduces 1 alert when merging e9728fd into ea0f675 - view on LGTM.com

new alerts:

• 1 for Comparison between inconvertible types

[lgtm-com]

This pull request introduces 1 alert when merging 4324f00 into 42d8c2a - view on LGTM.com

new alerts:

• 1 for Comparison between inconvertible types

[lgtm-com]

This pull request introduces 1 alert when merging 3e02652 into 42d8c2a - view on LGTM.com

new alerts:

• 1 for Comparison between inconvertible types

[lgtm-com]

This pull request introduces 1 alert when merging 7327f5d into 42d8c2a - view on LGTM.com

new alerts:

• 1 for Comparison between inconvertible types