C#List＜T＞集合转换为Json类型

using Newtonsoft.Json;//需要引用此类库 public static string ToJson<T>(List<T> list, string dateFormat = "yyyy-MM-dd") { IsoDateTimeConverter dc = new IsoDateTimeConverter(); dc.DateTimeFormat = dateFormat;//格式化时间 JsonSerializerSettings jss = new JsonSerializerSettings(); jss.NullValueHandling = NullValueHandling.Ignore;//忽略null值的属性 jss.Converters.Add(dc); string isoJson = JsonConvert.SerializeObject(list, Formatting.None, jss); return isoJson; }