<img attachment="true" src="https://www.jishulink.com/platform/static/ueditor/dialogs/attachment/fileTypeImages/icon_rar.gif" a

纯六面体如上图所示

特别简单 <div> <img src="https://img.jishulink.com/upload/201908/354536703ab5441fa167be7e464dbe25.png" title="QQ截图20190814094453.png" alt="QQ截图20190814094453.png" style="max-width:760px;"> </div>

何为高质量？四面体？六面体？混合网格？ 题不详，意不达。