QDIr QFile Create failed???
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/home/wangqinfeng/图片/qFile_qDir.png
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Partition is mounted read-only on UT,
you cannot write everywhere, there are default writeable directories though available with your app namespace by using
QStandardPath api
QStandardPaths::AppDataLocation -> ~./local/share/yourappnamespace
QStandardPaths::CacheLocation -> ~.cache/yourappnamespacesee http://docs.ubports.com/en/latest/appdev/guides/writeable-dirs.html
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