如果连接失败，那么会显示连接超时或拒绝连接消息(见清单10)。
If the connection fails, then either a connection timeout or a connection refused message will be displayed (see Listing 10).
第一条if语句将处理客户机连接消息并把各个显示信息添加到% disp hash中。
The first if statement handles the client connection messages and adds each display information to the % disp hash.
在序列图上一个序列接收和发送消息(又称交互)，能通过连接消息和框架元件边界，建立模型(如图2所见到)。
On sequence diagrams incoming and outgoing messages (A.K.A. interactions) for a sequence can be modeled by connecting the messages to the border of the frame element (as seen in Figure 2).
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