Chinese

@bobbyzhang Hi . I don't speak chinese but i understand your issue.
for Qt to detect opengl es 2 you will need to have libEGL.so and libGLESv2.so in your sysroot, especially in opt\vc\lib

so rename libEGL.so.1 and libGLESv2.so.2 to libEGL.so and libGLESv2.so
rename libEGL_static.a to libEGL.a and
libGLESv2_static.a to libGLESv2.a
Run configure again.You may find detailed infos in my article https://drive.google.com/file/d/1-Dd228_crhvV1VJnNjqLCAl3O6_cWeJ4/view?usp=drive_link

add this to the top of your cpp file
#pragma execution_character_set("UTF-8")

使用qcustomplot自定义类，可以在网上找到这个模块，里面会有例子，比这个复杂的都可以

问题已经解决，是个基础错误，我没有将数据库文件放入Debug的项目文件夹中导致查找的数据库数据为空，将数据库放入后正常。f7d054e9-eda8-40d4-ac53-bde018319976-image.png

Please write in english or use the chinese subforum -> moved to the correct subforum