C# SQLite连接字符串

path测试路径：Data目录存在，Data2目录不存在

                var path1 = "dummy1.db";//成功

                var path2 = "Data/dummy2.db";//成功

                var path3 = "Data\\dummy3.db";//成功

                var path4 = "c:\\Data\\dummy4.db";//成功

                var path5 = "Data2//dummy5.db";//错误，Data2目录不存在

           var path6 = "C:\\Data2\\dummy6.db";//错误，Data2目录不存在