diff --git a/WebSiteCode/Cmdjy/Cmdjy/Controllers/WsdInterfaceController.cs b/WebSiteCode/Cmdjy/Cmdjy/Controllers/WsdInterfaceController.cs
index ec1e1de..bbbb1ed 100644
--- a/WebSiteCode/Cmdjy/Cmdjy/Controllers/WsdInterfaceController.cs
+++ b/WebSiteCode/Cmdjy/Cmdjy/Controllers/WsdInterfaceController.cs
@@ -51,36 +51,52 @@ namespace Cmdjy.Controllers
                 result.Code = EnumCode.Exception;
                 result.Msg = "Count值错误。";
             }
-            if(result.Code != EnumCode.Exception) {
-                result.Prescriptions = new List<WsdPrescriptionInfo>();
-                count = count > WebSettings.WsdMaxCount ? WebSettings.WsdMaxCount : count;
-                var cache = CacheFactory.Cache;
-                for(int i = start;i < start + count;i++) {
-                    //从缓存获取
-                    var pkey = $"Company:Id:{info.CompanyCode}:Pre:Id:{i}";
-                    var one = cache.GetData<WsdPrescriptionInfo>(pkey);
-                    if(one == null) {
-                        //从数据库获取处方信息
-                        one = getPrescriptionInfoFromDb(info.CompanyCode,i);
-                        //判断是否为
-                        //获取药品信息
-                        if(one != null) one.Drugs = getDrugInfoFromDb(one.Id);
-                        //存缓存
-                        if(one != null) cache.SetData(pkey,one);
+            DateTime sd = DateTime.MinValue;
+            if(!string.IsNullOrEmpty(info.StartDate) && !DateTime.TryParse(info.StartDate,out sd)) {
+                result.Code = EnumCode.Exception;
+                result.Msg = "StartDate值格式错误，请修改正确格式或不提供该值。";
+            }
+            sd = new DateTime(sd.Year,sd.Month,sd.Day,0,0,0);//起始时间
+            int i = start;//起始编号
+            int maxId = db.PrescriptionInfos.Max(m => m.Id);//最大Id
+            count = Math.Min(WebSettings.WsdMaxCount,count);//最大获取数量
+            result.MaxId = maxId.ToString();//处方最大Id
+            result.Prescriptions = new List<WsdPrescriptionInfo>();
+            var cache = CacheFactory.Cache;
+            while(result.Code != EnumCode.Exception && i <= maxId && result.Prescriptions.Count < count) {
+                var pkey = $"Company:Id:{info.CompanyCode}:Pre:Id:{i}";
+                var one = cache.GetData<WsdPrescriptionInfo>(pkey);
+                if(one == null) {
+                    //从数据库获取处方信息
+                    one = getPrescriptionInfoFromDb(info.CompanyCode,i);
+                    //判断是否为
+                    //获取药品信息
+                    if(one != null) one.Drugs = getDrugInfoFromDb(one.Id);
+                    //存缓存
+                    if(one != null) cache.SetData(pkey,one);
+                }
+                if(one != null) {
+                    //处方日期要大于起始日期
+                    if(DateTime.TryParse(one.PrescriptionDatatime,out DateTime odt)) {
+                        if(odt < sd) {
+                            one = null;
+                        }
                     }
-                    if(needNull != null && one == null) {
-                        one = new WsdPrescriptionInfo {
-                            Type = WsdPrescriptionType.NullOrder,Id = i,
-                        };
-                    }
-                    if(one != null) {
-                        result.Prescriptions.Add(one);
+                    else {
+                        result.Code = EnumCode.Exception;
+                        result.Msg = $"处方({i})中PrescriptionDatatime错误。";
+                        break;
                     }
                 }
+                if(one != null) {
+                    result.Prescriptions.Add(one);
+                }
+                i++;
+            }
+            if(result.Code != EnumCode.Exception) {
                 result.Code = EnumCode.Success;
                 result.Count = result.Prescriptions.Where(m => m.Type != WsdPrescriptionType.NullOrder).Count();
                 result.Msg = "";
-                result.MaxId = db.PrescriptionInfos.Max(m => m.Id).ToString();
                 result.More = db.PrescriptionInfos.Max(m => m.Id) > (start + count);
             }
             //编码：json串 +  加密信息
diff --git a/WebSiteCode/Cmdjy/WsdInterfaceModels/WsdRequest.cs b/WebSiteCode/Cmdjy/WsdInterfaceModels/WsdRequest.cs
index 883d3b3..99b4e70 100644
--- a/WebSiteCode/Cmdjy/WsdInterfaceModels/WsdRequest.cs
+++ b/WebSiteCode/Cmdjy/WsdInterfaceModels/WsdRequest.cs
@@ -21,5 +21,9 @@
         /// 最大本次获取的处方数量。根据客户网络和服务器配置情况自行调整
         /// </summary>
         public string MaxCount { get; set; }
+        /// <summary>
+        /// 查询开始时间
+        /// </summary>
+        public string StartDate { get; set; }
     }
 }