这种成集群的钮扣被称为“随机图”中的“相互连接着的组件”，其中的"图"就是一些由线连接的节点的集合。
Such a cluster of buttons is called a “connected component” in a “random graph”, where a graph is just a set of nodes connected by lines.
出口门同理可知，因为它是一个返回消息，连接从一个生命线到图的框架，箭头连接框架。
The exit gate is known, because it's a return message that is connected from a lifeline to the diagram's frame with the arrowhead connected to the frame.
一个门只是一个消息，图形表示为一端连接序列图的框架边缘，另一端连接到生命线。
A gate is merely a message that is illustrated with one end connected to the sequence diagram's frame's edge and the other end connected to a lifeline.
应用推荐