目录1.概述2.容器详解2.1vector（向量）2.2deque（双端队列）2.3list（列表）2.4 array（数组）2.5 string（字符串）2.6 map（映射）2.7 set（集合）3.后记1.概述
I saw any post about Reachability but people doesn\'t really give the exact answer to the problem. In my application I use the Reachability code from apple and in my appDelegate I use this:
I have a form in which i paint a waveform on a button click that is as soon as i click button, the waveform displays. Now when i minimize the form and maximize it again, the waveform disappears.How to
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