Chinese

Ok ，thanks

@joyforward 不用看了，大概国内镜像源出问题，或者qt的某个验证网站出问题了。等周一有人排查吧。

不是可以不用qrc添加qml文件吗, 在CMakeLists.txt里编辑添加或者DiskTool添加现有文件

@Three-Body You posted in English in Chinese forum. Please use correct forum. I think if you do not define dependencies between the projects the order will be undefined and on multi-core and/or multi-cpu machines they will be built in unspecified and probably non-reproducible order.

如果你想要实现相当窗口缩放的功能，你需要在resizeEvent时获取用户按下的位置（上下左右和四个角）然后保持原始比例来同步调整宽和高。这样可以保证用户无论在哪里调整大小，原始比例都不会变。 同时，你需要按原始与现在的比例调整控件的字号。控件的大小可以按百分比自动调整。

示例工程项目为：Scene Graph - OpenGL Under QML

Set environment variable QT_DEBUG_PLUGINS=1 before running your program, then run it. This gives diagnostic output, look through it to see why it fails to load QMYSQL driver. 在运行程序之前设置环境变量“QT_DEBUG_PLUGINS=1”，然后运行它。 这会提供诊断输出，查看它以了解为什么无法加载“QMYSQL”驱动程序。

@Feng-chunX database is locked => "happens only when there is another connection with an active transaction" You have another process or another thread which is writing to the database? Google: qsqlquery "database is locked"