Hello World

HelloWorld.proj

<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="SayHello">  

    <!-- Properties can be passed as command line parameters. i.e. /p:Name=MyName 
    or /p:Name="My Name" (Use quotes if the value includes spaces) -->  
    <PropertyGroup>
        <Name Condition="'$(Name)'==''">Rolo</Name>
    </PropertyGroup>  

    <!-- Items can't be passed as command line parameters. -->   
    <!-- Items can include metadata. i.e. URL -->  
    <ItemGroup>  
        <People Include="World"/>  
        <People Include="StackOverflow">  
            <URL>http://stackoverflow.com</URL>
        </People>
        <People Include="Google">  
            <URL>http://google.com</URL>  
        </People>  
    </ItemGroup>  

    <!-- Targets can be called using it's name. i.e. /t:SayHello -->  
    <Target Name="SayHello">  
        <!-- You can have as many Tasks as required inside a Target. -->  
        <!-- Tasks can be executed conditionally. -->  
        <Message Condition="'%(People.URL)'==''" Text="Hello %(People.Identity), my name is $(Name)! "/>  
        <Message Condition="'%(People.URL)'!=''" Text="Hello %(People.Identity), my name is $(Name)!. Your URL is %(People.URL) "/>  
    </Target>  
</Project>  

执行：

• msbuild HelloWorld.proj
• msbuild HelloWorld.proj / p：Name =John Doe
• msbuild HelloWorld.proj / p：Name =Batman/ t：SayHello