The use of an advanced agreement and algorithms, makes BT the user to experience faster than FTP and HTTP download speed. Coupled with the combination of BT and QT, QT platform makes use of BT in a broader space to play a great role and benefits of BT and adapted to contemporary embedded, the development of things. The paper amalyzed QT signals and slots system, key metheds and measures of BT pro- tocal and stated teh system design.%BT协议基于先进的协议和方法,可极大地提高下载速度。而BT同QT的结合可以极大地发挥BT的优势和作用。文章首先分析了QT的信号和槽机制,以及BT协议的关键学法和策略,最后就其系统的设计进行了阐述。
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