Ubuntu14.04 install qt5.3.1

1. qt5.3.1: http://qt-project.org/select ”qt 5.3.1 for Linux 32-bit, the file name is "qt-opensource-linux-x86-5.3.1.run ";

2. Go to the qt-opensource-linux-x86-5.3.1.run directory and modify file permissions: chmod U + x qt-opensource-linux-x86-5.3.1.run;

3. Open the installation interface:./qt-opensource-linux-x86-5.3.1.run;

4. Next;

5. Select the lgpl protocol and install it;

6. Start QT creater: Enter qt5.3.1/tools/qtcreater/bin/. You can double-click qtcreater to start it.