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int main(int argc, char* argv[])
{
fstream logFile;
logFile.open("log", std::ios::app);
log4cpp::OstreamAppender* osAppender = new log4cpp::OstreamAppender("osAppender", &logFile);
//如果我用下面这行,那么消息可以成功显示在控制台上,但如果我用上面那行,不论我执行多少次这段程序,我的log文件永远是空的
//log4cpp::OstreamAppender* osAppender = new log4cpp::OstreamAppender("osAppender", &cout);
osAppender->setLayout(new log4cpp::BasicLayout());
log4cpp::Category& root = log4cpp::Category::getRoot();
root.addAppender(osAppender);
root.setPriority(log4cpp::Priority::DEBUG);
root.error("Hello log4cpp in aError Message!");
root.warn("Hello log4cpp in aWarning Message!");
log4cpp::Category::shutdown();
cout<<"test";
return 0;
}