QCalendarWidget: A component that selects dates in the form of a calendar.No one can deny the role of practice on the road to improving one's skills and continuous improvement. But what are the problems with the 10,000-hour law? What is the original intention of the author Eriksson? How can people learn better?Recently, the number of reflective DDoS attacks using memcached servers has increased significantly. CNCERT has carried out centralized monitoring and analysis on three types of key reflective attacks. This report is a special analysis report on reflective attack resources in February 2018. Focusing on the problem of Internet environment threat management, this paper focuses on the analysis of "what are the important network resources used to launch DDoS reflection attacks". Network resources for reflection attacks include:上世纪七十年代，赫山警备团团长周青卷入一场政治风波。周青的妻子石竹为保全五个孩子，被迫与丈夫离婚，同时强迫长子晓杨与热恋中的女友分手，远赴边疆从军，自己留在辽北小镇，艰辛抚育其他四个儿女。不幸的是，晓杨在战斗中英勇牺牲。石竹带着终身难以平复的愧疚，接纳了晓杨的爱人迎彤和遗孤瑶瑶。喊完这话，头也不回地冲出去了。一来病人看病很方便，二来若是出诊的话，说不定会耽误更多人。鲁三答应一声，转身吩咐人去准备。
