ASP.Net MVC MvcBuildViews 大幅增加编译时间

csharp
[PrecompiledMvcViewEngine]
public class MyPrecompiledViewEngine : RazorGeneratorMvcWebPageViewEngine
{
    public MyPrecompiledViewEngine()
    {
        var assembly = typeof(MyPrecompiledViewEngine).Assembly;
        var viewsNamespace = "MyNamespace.Views";
        // 配置视图文件的命名空间和程序集
        ViewLocationFormats = new[]
        {
            "~/Views/{1}/{0}.cshtml",
            "~/Views/Shared/{0}.cshtml"
        };
        PartialViewLocationFormats = ViewLocationFormats;
        // 设置预编译视图的程序集和命名空间
        var precompiledViewsAssembly = typeof(MyPrecompiledViewEngine).Assembly;
        var precompiledViewsNamespace = "MyNamespace.PrecompiledViews";
        var precompiledViewsLocationFormats = new[]
        {
            "~/bin/PrecompiledViews/{1}/{0}.cshtml",
            "~/bin/PrecompiledViews/Shared/{0}.cshtml"
        };
        // 添加预编译视图引擎
        var precompiledViewEngine = new PrecompiledMvcEngine(precompiledViewsAssembly, precompiledViewsNamespace, precompiledViewsLocationFormats);
        precompiledViewEngine.UsePhysicalViewsIfNewer = true;
        precompiledViewEngine.FileExtensions = new[] { "cshtml" };
        ViewEngines.Engines.Insert(0, precompiledViewEngine);
    }
}