yED
把我常用的Ubuntu下的软件都整理一下。画流程图的yED，其实它可以画的类型很多。
yWorks的东西设计得十分精细。德国人还是比较严谨。
First-class Diagramming Components
yED Graph Editor
yEd is a very powerful graph editor that can be used to quickly and effectively generate drawings and to apply automatic layouts to a range of different diagrams and networks.
yEd is available as a free download with unrestricted functionality!
yEd makes full use of the yFiles library. This is a Java class library enabling the viewing, editing, optimizing, drawing, and animating of a wide range of diagrams, networks, and other graph-like structures.
yEd has been built using 100% lightweight Swing components. This allows it to run on any platform where a suitable Runtime Environment is available.
优点：可以画各种图，跨平台
缺点：都能克服:D
