Gantt Diagrams，甘特图

参考：mermaid - Gantt diagrams

A Gantt chart is a type of bar chart, first developed by Karol Adamiecki in 1896, and independently by Henry Gantt in the 1910s, that illustrates a project schedule and the amount of time it would take for any one project to finish. Gantt charts illustrate number of days between the start and finish dates of the terminal elements and summary elements of a project.

甘特图将每个计划记录为一个从左到右的连续条形图。x 轴代表时间，y 轴记录不同的任务以及它们完成的顺序。