Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I read the Qt4 can use text to write a procedure ,next use Administrator tocompile,but the Qt5 don't use this way,who can tell me how to use the Application Developer Guide for Desktop.