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csdn
11 年
发布时报 Please instantiate the QApplication object first
程序里确实使用了很多applicationDirPath(),唯有一个类使用时报这个,把那个类注释掉就不报了,什么意思呢,我是在主窗体的TimerEvent里初始化的那个类。总不能给个Debug版本让别人用吧。
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