List<实体> 转字符串常用写法

                var List<entity> enitylist = getEnitylist(); // 获取实体list
                List<string> strList= new List<string>();
                enitylist .ForEach(x => sorts.Add(string.Format("{0} {1}", x.field1, x.field2)));
                var result = string.Join(",", strList.ToArray());