最近在学Qt5，遇到了许多问题，这篇文章主要对自己遇到的一些问题进行总结。 1.编译最简单的HelloWorld时 [crayon-69d961ae0bd9b224024063/] 系统提示：QApplication: no such file or directory 解决方法：这是因为Qt5的qapplication在QtWidgets模块里，和Qt4不一样，Qt4的qapplication在QtGui模块里，在pro里添加一行 [crayon-69d961ae0bda8701980124/] 即可。

The QtWebKit module provides a web browser engine as well as classes to render and interact with web content. QtWebKit模块提供了一个web浏览器引擎同时也提供了能够渲染与作用于网页内容的类。 QtWebKit provides a Web browser engine that makes it easy to embed content from the World Wide Web into your Qt application. At the same time Web content can be enhanced with native controls. QtWebKit提供了一个很容易吧万维网内容嵌入QT应用的浏览器引擎。web内容也很容易被嵌入到本地控件中。 QtWebKit provides facilities for rendering of HyperText Markup Language (HTML), Extensible HyperText Markup Language (XHTML) and Scalable Vector Graphics (SVG) documents, styled using Cascading Style Sheets (CSS) and scripted with JavaScript. QtWebkit能够渲染HTMl语言，也可渲染XHTML与SVG，实验css设计界面与Javascript进行脚本编程。 A bridge between the JavaScript execution environment and the Qt object model makes it possible for custom QObjects to be scripted. For detailed documentation see The QtWebkit Bridge. Integration with the Qt networking module enables Web pages to be transparently loaded from Web servers, the local file system or even the Qt resource system. In addition to providing pure rendering features, HTML documents can be made fully editable to the user through the use of the contenteditable attribute on HTML elements. QtWebKit has been enhanced to become more attractive on the mobile front as well. For more information see QtWebKit Goes Mobile. QtWebKit is based on the Open Source WebKit engine. More information about WebKit itself can be found on the WebKit Open Source Project Web site. Including In Your Project To include the definitions of the module's classes, use the following directive: [crayon-69d961ae0d347760562099/] To link against the module, add this line to your qmake .pro file: [crayon-69d961ae0d352577703826/] Notes Note: Building the QtWebKit module with debugging symbols is problematic on many platforms due…