RavenDB 错误：我无法从不同的类访问 var 存储。有什么建议

RavenDB 错误：var 存储不是全局变量。如何创建一个可以使用访问文档存储的类？非常感谢任何有关此代码拒绝运行原因的评论

    class Program
    { 
        static void Main(string[] args)
        {
            var store = new DocumentStore
            {
                Urls = new[] { "http://localhost:8080" },
                Database = "Tasks"
            };

            store.Initialize();

        }
     class OtherProgram

        using (var session = Store.OpenSession())
                    {
                        var task = session.Load<Entity>(combinedInitial + email)
//More code
}


    

通常，您会为每个应用程序使用一个文档存储实例（单例).

请参阅此处初始化 DocumentnStore 的常见模式:
https://ravendb.net/learn/inside-ravendb-book/reader/4.0/2-zero-to-ravendb#the-document-store https://ravendb.net/learn/inside-ravendb-book/reader/4.0/2-zero-to-ravendb#the-document-store

请参阅此中的演练和说明demo:
https://demo.ravendb.net/demos/csharp/basics/the-document-store https://demo.ravendb.net/demos/csharp/basics/the-document-store

也可以按照下面的例子训练营存储库
https://github.com/ravendb/bootcamp/tree/v5.x/src/unit1/lesson4#exercise-moving-the-documentstore-instance-to-a-singleton-class https://github.com/ravendb/bootcamp/tree/v5.x/src/unit1/lesson4#exercise-moving-the-documentstore-instance-to-a-singleton-class