Since the UNIX sockets interface based on TCP/IP protocol has succeed in communication, of course the user-level sockets over ULC will be popular to programmer, which is motivation of thesis.

基于UNIX TCP/IP的套接字接口已经为TCP/IP协议的应用谱写了成功的乐章，当然，基于用户级协议的高性能套接字接口也将为用户级协议的应用打开方便之门，这也是论文研究的重点。

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When the programmer interacts with the panel item through the user interface (UI), this associated property will be set.

当程序设计人员透过使用者介面(UI)与面板项目互动时，会设定这个相关联的属性。

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