1、下载安装程序 

http://download.qt.io/official_releases/qt/5.9/5.9.2/qt-opensource-linux-x64-5.9.2.run 

2、安装

chmod u+x qt-opensource-linux-x64-5.9.2.run 

./qt-opensource-linux-x64-5.9.2.run 

进入安装界面，进行安装 

安装完成之后进入安装目录运行QtCreator

此时只能在root用户下执行./Qt5.9.2/Tools/QtCreator/bin/qtcreator.sh运行QtCreator

3、设置环境变量

添加环境变量 

export LD_LIBRARY_PATH=/opt/Qt5.9.2/Tools/QtCreator/lib:/opt/Qt5.9.2/Tools/QtCreator/lib/qtcreator:/opt/Qt5.9.2/Tools/QtCreator/lib/Qt/lib:$LD_LIBRARY_PATH

export PATH=$PATH:/opt/Qt5.9.2/5.9.2/gcc_64/bin:/opt/Qt5.9.2/Tools/QtCreator/bin

4、执行qtcreator

qtcreator