1、去官网下载离线安装包 (需要注册)
linux 64bit : qt-opensource-linux-x64-5.7.0.run
2、安装libgl1-mesa-dev ,否则在编译时会出错,提示
cannot find -lGL collect2:error:ld returned 1 exit status
sudo apt-get install libgl1-mesa-dev
3、安装QT
(1)赋可执行权限
sudo chmod u+x qt-opensource-linux-x64-5.7.0.run
(2)安装
./qt-opensource-linux-x64-5.7.0.run
安装目录选择了默认目录/opt/Qt5.7.0
四:配置Qt
安装完后,还要配置Qt,否则是不能使用的。当你在命令行下输入qmake时,会报这样的错误qmake:could not exec ‘/usr/lib/x86_64-linux-gnu/qt4/bin/qmake’:NO such file or directory(32位的ubuntu报的是这样的错 qmake:could not exec ‘/usr/lib/i386-linux-gnu/qt4/bin/qmake’:NO such file or directory)
顺着它的报错,进入/usr/lib/x86_64-linux-gnu/qt-default/qtchooser 下
sudo gedit /usr/lib/x86_64-linux-gnu/qt-default/qtchooser/default.conf
/opt/Qt5.7.0/5.7/gcc_64/bin /opt/Qt5.7.0/5.7/gcc_64