参考文章:http://blog.csdn.net/superbfly/article/details/18075915
我安装了Qt类库和开发Qt的VS2010插件，使用VS2010编写Qt程序时发现没有代码提示功能，
网上查了下，需要在工程中设置Qt类库的头文件路径和库文件路径，未设置之前错误提示如下：
很明显是VS2010找不到Qt类库的头文件放在哪里，也就难怪没有代码提示功能了。。。
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在VS2010的菜单栏中点 视图--->属性管理器,打开属性管理窗口，如下图所示：
Debug | Win32 目录下面的是针对调试版本程序的设置。
Release | Win32 目录下面的是针对发行版本程序的设置。
打开相应目录的Microsoft.Cpp.Win32.user，添加Qt类库相应文件所在的目录即可，
这里为了方便，我新建了一个属性文件，直接添加到属性管理器中就可以了，不过每次重启VS2010，好像都要重新添加？
我的属性文件内容如下：
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<ExecutablePath>D:\Qt\4.8.6\bin;$(ExecutablePath)</ExecutablePath>
</PropertyGroup>
<PropertyGroup>
<IncludePath>
D:\Qt\4.8.6\include;
D:\Qt\4.8.6\include\QtCore;
D:\Qt\4.8.6\include\QtGui;
D:\Qt\4.8.6\QtMultimedia;
D:\Qt\4.8.6\QtNetwork;
D:\Qt\4.8.6\QtOpenGL;
D:\Qt\4.8.6\QtOpenVG;
D:\Qt\4.8.6\QtScript;
D:\Qt\4.8.6\QtScriptTools;
D:\Qt\4.8.6\QtSql;
D:\Qt\4.8.6\QtSvg;
D:\Qt\4.8.6\QtWebKit;
D:\Qt\4.8.6\QtXml;
D:\Qt\4.8.6\QtXmlPatterns;
D:\Qt\4.8.6\QtDeclarative;
D:\Qt\4.8.6\Phonon;
D:\Qt\4.8.6\Qt3Support;
D:\Qt\4.8.6\QtDesigner;
D:\Qt\4.8.6\QtUiTools;
D:\Qt\4.8.6\QtHelp;
D:\Qt\4.8.6\QtTest;
D:\Qt\4.8.6\QAxContainer;
D:\Qt\4.8.6\QAxServer;
D:\Qt\4.8.6\src;
$(IncludePath)
</IncludePath>
</PropertyGroup>
<PropertyGroup>
<ReferencePath>D:\Qt\4.8.6\lib;$(ReferencePath)</ReferencePath>
</PropertyGroup>
<PropertyGroup>
<LibraryPath>D:\Qt\4.8.6\lib;$(LibraryPath)</LibraryPath>
</PropertyGroup>
<PropertyGroup>
<SourcePath>D:\Qt\4.8.6\src;$(SourcePath)</SourcePath>
</PropertyGroup>
</Project>
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WIN7 Microsoft.Cpp.Win32.user文件默认路径：
C:\Users\你的用户名\AppData\Local\Microsoft\MSBuild\v4.0\
Microsoft.Cpp.Win32.user.props
我改好Microsoft.Cpp.Win32.user.props 的内容如下，将其中的D:\Qt\4.8.6替换成你的Qt的安装目录即可。
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ImportGroup Label="PropertySheets" />
<PropertyGroup>
<ExecutablePath>$(VCInstallDir)bin;$(WindowsSdkDir)bin\NETFX 4.0 Tools;$(WindowsSdkDir)bin;$(VSInstallDir)Common7\Tools\bin;$(VSInstallDir)Common7\tools;$(VSInstallDir)Common7\ide;$(ProgramFiles)\HTML Help Workshop;$(FrameworkSDKDir)\bin;$(MSBuildToolsPath32);$(VSInstallDir);$(SystemRoot)\SysWow64;$(FxCopDir);$(PATH);D:\Qt\4.8.6\bin;</ExecutablePath>
<IncludePath>$(IncludePath);D:\Qt\4.8.6\include;D:\Qt\4.8.6\include\QtCore;D:\Qt\4.8.6\include\QtGui;D:\Qt\4.8.6\QtMultimedia;D:\Qt\4.8.6\QtNetwork;D:\Qt\4.8.6\QtOpenGL;D:\Qt\4.8.6\QtOpenVG;D:\Qt\4.8.6\QtScript;D:\Qt\4.8.6\QtScriptTools;D:\Qt\4.8.6\QtSql;D:\Qt\4.8.6\QtSvg;D:\Qt\4.8.6\QtWebKit;D:\Qt\4.8.6\QtXml;D:\Qt\4.8.6\QtXmlPatterns;D:\Qt\4.8.6\QtDeclarative;D:\Qt\4.8.6\Phonon;D:\Qt\4.8.6\Qt3Support;D:\Qt\4.8.6\QtDesigner;D:\Qt\4.8.6\QtUiTools;D:\Qt\4.8.6\QtHelp;D:\Qt\4.8.6\QtTest;D:\Qt\4.8.6\QAxContainer;D:\Qt\4.8.6\QAxServer;D:\Qt\4.8.6\src;$(IncludePath)</IncludePath>
<ReferencePath>$(VCInstallDir)atlmfc\lib;$(VCInstallDir)lib;D:\Qt\4.8.6\lib;</ReferencePath>
<LibraryPath>$(LibraryPath);D:\Qt\4.8.6\lib;</LibraryPath>
<SourcePath>$(VCInstallDir)atlmfc\src\mfc;$(VCInstallDir)atlmfc\src\mfcm;$(VCInstallDir)atlmfc\src\atl;$(VCInstallDir)crt\src;D:\Qt\4.8.6\src;</SourcePath>
<ExcludePath>$(VCInstallDir)include;$(VCInstallDir)atlmfc\include;$(WindowsSdkDir)include;$(FrameworkSDKDir)\include;$(MSBuildToolsPath32);$(VCInstallDir)atlmfc\lib;$(VCInstallDir)lib;</ExcludePath>
</PropertyGroup>
</Project>