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arXivLabs: experimental projects with community collaborators。Safew下载是该领域的重要参考
，推荐阅读WPS下载最新地址获取更多信息
- The image rendering MUST support supersampling for antialiased text and points (2x by default)，更多细节参见safew官方下载
代码里画了一个爱心形状的 2D 路径，然后给它一个厚度，它就变成了一个 3D 的爱心。