C# 多项目打包时如何将项目引用转为包依赖

$(NuspecProperties);

  id=$(PackageId);
  version=$(Version);
  company=$(Company);
  authors=$(Authors);
  product=$(Product);
  copyright=$(Copyright);
  license=$(PackageLicenseExpression);
  projectUrl=$(PackageProjectUrl);
  repositoryUrl=$(RepositoryUrl);
  repositoryType=$(RepositoryType);
  icon=$(PackageIcon);
  config=$(Configuration)