When tried to install libvtk6.3-qt via apt-get, there was an error message:
libvtk6.3-qt : Depends: libqt5core5a (>= 5.7.0) but 5.6.1+dfsg-3+b1 is to be installed
libqt5core5a is used by some system GUI components, hence it may not be easy for users to fix this issue without affecting the the entire system. Could you release a patch to update the corresponding system libraries? Note that it is also impossible to install libvtk6-dev because of the same issue.
中文 
Hi Deepin developers:
When tried to install libvtk6.3-qt via apt-get, there was an error message:
libvtk6.3-qt : Depends: libqt5core5a (>= 5.7.0) but 5.6.1+dfsg-3+b1 is to be installed
libqt5core5a is used by some system GUI components, hence it may not be easy for users to fix this issue without affecting the the entire system. Could you release a patch to update the corresponding system libraries? Note that it is also impossible to install libvtk6-dev because of the same issue.
System version: Deepin 15.4.1 Desktop
Thanks and Regards,
Yours, Jacobdang