修复bug

src/WMS.Web.Repositories/SerialNumbersRepositories.cs

@@ -129,13 +129,9 @@ namespace WMS.Web.Repositories
             };
             if (!string.IsNullOrEmpty(s.SalBillNo))
             {
-                Random rd = new Random();
                 var list = JsonConvert.DeserializeObject<List<string>>(s.SalBillNo);
                 if (list.Count() > 0)
-                {
-                    int index = rd.Next(0, list.Count);
-                    respone.SalBillNo = list[index];
-                }
+                    respone.SalBillNo = list[0];
             }
 
             return respone;