本人只是写了一段代码，感觉性能比较好所以记录下来供自己查看用得：
public virtual ReturnResult<bool> CheckTimeRange(string range, string operHint, string name, string dateSeparator = ">", string dateRangeSeparator = ";") { if (string.IsNullOrEmpty(range)) return new ReturnResult<bool>(false, operHint + "失败，" + name + "日期范围不可为空"); Regex reg = new Regex(@"(?<sdate>d{4}[-/]d{1,2}[-/]d{1,2})" + dateSeparator + @"(?<edate>d{4}[-/]d{1,2}[-/]d{1,2})"); string[] sArrays = range.Split(new string[] { dateRangeSeparator }, StringSplitOptions.RemoveEmptyEntries); foreach(string sArray in sArrays) { DateTime firstValue, lastVaule; if(!reg.IsMatch(sArray)) return new ReturnResult<bool>(false, operHint + "失败，" + name + "日期格式有误"); string[] dateTimeRanges = Regex.Split(sArray, dateSeparator); if (!DateTime.TryParse(dateTimeRanges.First(), out firstValue) || !DateTime.TryParse(dateTimeRanges.Last(), out lastVaule)) return new ReturnResult<bool>(false, operHint + "失败，" + name + "日期格式有误"); DateTime date = DateTime.Now; if (firstValue < date.AddYears(-2) || lastVaule > date.AddYears(2) || firstValue > lastVaule) return new ReturnResult<bool>(false, operHint + "失败，" + name + "日期范围输入有误"); } return new ReturnResult<bool>(true, name + "时间范围正确"); }