交互式建立简单的交通网络模型，可以算出两点间的最短路径，并且可将数据保存到txt文件中，再读取显示。-Interactive create a simple traffic network model, you can calculate the shortest path between two points, and the data can be saved to the txt file, and then read the display.

git代码仓库托管及基本的 Web管理界面以外，还提供了订阅、讨论组、文本渲染、在线文件编辑器、协作图谱（报表）、代码片段分享（Gist）等功能。(git code warehouse hosting and basic Web management interface, but also provides subscr iption, discussion group, text rendering, online file editor, collaboration map (report)