diff --git a/src/DotNetCore.CAP.Kafka/CAP.KafkaOptions.cs b/src/DotNetCore.CAP.Kafka/CAP.KafkaOptions.cs
index e61ccee..0790458 100644
--- a/src/DotNetCore.CAP.Kafka/CAP.KafkaOptions.cs
+++ b/src/DotNetCore.CAP.Kafka/CAP.KafkaOptions.cs
@@ -42,7 +42,7 @@ namespace DotNetCore.CAP
             {
                 throw new ArgumentNullException(nameof(Servers));
             }
-            
+
             MainConfig.Add("bootstrap.servers", Servers);
 
             MainConfig["queue.buffering.max.ms"] = "10";
diff --git a/src/DotNetCore.CAP.Kafka/KafkaConsumerClientFactory.cs b/src/DotNetCore.CAP.Kafka/KafkaConsumerClientFactory.cs
index ea2ee67..8bda50a 100644
--- a/src/DotNetCore.CAP.Kafka/KafkaConsumerClientFactory.cs
+++ b/src/DotNetCore.CAP.Kafka/KafkaConsumerClientFactory.cs
@@ -1,7 +1,4 @@
-using System;
-using Microsoft.Extensions.Options;
-
-namespace DotNetCore.CAP.Kafka
+namespace DotNetCore.CAP.Kafka
 {
     internal sealed class KafkaConsumerClientFactory : IConsumerClientFactory
     {
diff --git a/src/DotNetCore.CAP.MySql/CAP.MySqlCapOptionsExtension.cs b/src/DotNetCore.CAP.MySql/CAP.MySqlCapOptionsExtension.cs
index dd18861..b9c1b0d 100644
--- a/src/DotNetCore.CAP.MySql/CAP.MySqlCapOptionsExtension.cs
+++ b/src/DotNetCore.CAP.MySql/CAP.MySqlCapOptionsExtension.cs
@@ -34,7 +34,7 @@ namespace DotNetCore.CAP
                     var dbContext = (DbContext)x.GetService(mysqlOptions.DbContextType);
                     mysqlOptions.ConnectionString = dbContext.Database.GetDbConnection().ConnectionString;
                     return mysqlOptions;
-                });               
+                });
             }
             else
             {
diff --git a/src/DotNetCore.CAP.MySql/CapPublisher.cs b/src/DotNetCore.CAP.MySql/CapPublisher.cs
index aac528f..0d6a1b3 100644
--- a/src/DotNetCore.CAP.MySql/CapPublisher.cs
+++ b/src/DotNetCore.CAP.MySql/CapPublisher.cs
@@ -37,7 +37,7 @@ namespace DotNetCore.CAP.MySql
             DbConnection = _dbContext.Database.GetDbConnection();
             var dbContextTransaction = _dbContext.Database.CurrentTransaction;
             var dbTrans = dbContextTransaction?.GetDbTransaction();
-            //DbTransaction is dispose in original  
+            //DbTransaction is dispose in original
             if (dbTrans?.Connection == null)
             {
                 IsCapOpenedTrans = true;
@@ -58,7 +58,7 @@ namespace DotNetCore.CAP.MySql
         protected override async Task ExecuteAsync(IDbConnection dbConnection, IDbTransaction dbTransaction, CapPublishedMessage message)
         {
             await dbConnection.ExecuteAsync(PrepareSql(), message, dbTransaction);
-    
+
             _logger.LogInformation("Published Message has been persisted in the database. name:" + message.ToString());
         }
 
@@ -69,7 +69,8 @@ namespace DotNetCore.CAP.MySql
                 await conn.ExecuteAsync(PrepareSql(), message);
             }
         }
-        #region private methods     
+
+        #region private methods
 
         private string PrepareSql()
         {
diff --git a/src/DotNetCore.CAP.PostgreSql/CAP.PostgreSqlCapOptionsExtension.cs b/src/DotNetCore.CAP.PostgreSql/CAP.PostgreSqlCapOptionsExtension.cs
index 52de4b7..e4381e0 100644
--- a/src/DotNetCore.CAP.PostgreSql/CAP.PostgreSqlCapOptionsExtension.cs
+++ b/src/DotNetCore.CAP.PostgreSql/CAP.PostgreSqlCapOptionsExtension.cs
@@ -1,6 +1,6 @@
 using System;
-using DotNetCore.CAP.Processor;
 using DotNetCore.CAP.PostgreSql;
+using DotNetCore.CAP.Processor;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.DependencyInjection;
 
diff --git a/src/DotNetCore.CAP.PostgreSql/CapPublisher.cs b/src/DotNetCore.CAP.PostgreSql/CapPublisher.cs
index 5a81931..0f4e6c9 100644
--- a/src/DotNetCore.CAP.PostgreSql/CapPublisher.cs
+++ b/src/DotNetCore.CAP.PostgreSql/CapPublisher.cs
@@ -2,8 +2,8 @@
 using System.Data;
 using System.Threading.Tasks;
 using Dapper;
-using DotNetCore.CAP.Models;
 using DotNetCore.CAP.Abstractions;
+using DotNetCore.CAP.Models;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Storage;
 using Microsoft.Extensions.Logging;
@@ -28,7 +28,7 @@ namespace DotNetCore.CAP.PostgreSql
             if (_options.DbContextType != null)
             {
                 IsUsingEF = true;
-                _dbContext = (DbContext)ServiceProvider.GetService(_options.DbContextType);           
+                _dbContext = (DbContext)ServiceProvider.GetService(_options.DbContextType);
             }
         }
 
@@ -37,7 +37,7 @@ namespace DotNetCore.CAP.PostgreSql
             DbConnection = _dbContext.Database.GetDbConnection();
             var dbContextTransaction = _dbContext.Database.CurrentTransaction;
             var dbTrans = dbContextTransaction?.GetDbTransaction();
-            //DbTransaction is dispose in original  
+            //DbTransaction is dispose in original
             if (dbTrans?.Connection == null)
             {
                 IsCapOpenedTrans = true;
@@ -75,8 +75,8 @@ namespace DotNetCore.CAP.PostgreSql
         private string PrepareSql()
         {
             return $"INSERT INTO \"{_options.Schema}\".\"published\" (\"Name\",\"Content\",\"Retries\",\"Added\",\"ExpiresAt\",\"StatusName\")VALUES(@Name,@Content,@Retries,@Added,@ExpiresAt,@StatusName)";
-        } 
+        }
 
-        #endregion
+        #endregion private methods
     }
 }
\ No newline at end of file
diff --git a/src/DotNetCore.CAP.PostgreSql/IAdditionalProcessor.Default.cs b/src/DotNetCore.CAP.PostgreSql/IAdditionalProcessor.Default.cs
index f544d2b..1c79f60 100644
--- a/src/DotNetCore.CAP.PostgreSql/IAdditionalProcessor.Default.cs
+++ b/src/DotNetCore.CAP.PostgreSql/IAdditionalProcessor.Default.cs
@@ -44,7 +44,7 @@ namespace DotNetCore.CAP.PostgreSql
                     using (var connection = new NpgsqlConnection(_options.ConnectionString))
                     {
                         removedCount = await connection.ExecuteAsync($"DELETE FROM \"{_options.Schema}\".\"{table}\" WHERE \"ExpiresAt\" < @now AND \"Id\" IN (SELECT \"Id\" FROM \"{_options.Schema}\".\"{table}\" LIMIT @count);",
-                            new { now = DateTime.Now, count = MaxBatch });                        
+                            new { now = DateTime.Now, count = MaxBatch });
                     }
 
                     if (removedCount != 0)
diff --git a/src/DotNetCore.CAP.SqlServer/CapPublisher.cs b/src/DotNetCore.CAP.SqlServer/CapPublisher.cs
index 60bafa4..18c17c2 100644
--- a/src/DotNetCore.CAP.SqlServer/CapPublisher.cs
+++ b/src/DotNetCore.CAP.SqlServer/CapPublisher.cs
@@ -37,7 +37,7 @@ namespace DotNetCore.CAP.SqlServer
             DbConnection = _dbContext.Database.GetDbConnection();
             var dbContextTransaction = _dbContext.Database.CurrentTransaction;
             var dbTrans = dbContextTransaction?.GetDbTransaction();
-            //DbTransaction is dispose in original  
+            //DbTransaction is dispose in original
             if (dbTrans?.Connection == null)
             {
                 IsCapOpenedTrans = true;
@@ -66,8 +66,8 @@ namespace DotNetCore.CAP.SqlServer
         {
             using (var conn = new SqlConnection(_options.ConnectionString))
             {
-               await conn.ExecuteAsync(PrepareSql(), message);
-            } 
+                await conn.ExecuteAsync(PrepareSql(), message);
+            }
         }
 
         #region private methods
diff --git a/src/DotNetCore.CAP/Abstractions/CapPublisherBase.cs b/src/DotNetCore.CAP/Abstractions/CapPublisherBase.cs
index 34aba5b..2eeddc1 100644
--- a/src/DotNetCore.CAP/Abstractions/CapPublisherBase.cs
+++ b/src/DotNetCore.CAP/Abstractions/CapPublisherBase.cs
@@ -160,4 +160,4 @@ namespace DotNetCore.CAP.Abstractions
 
         #endregion private methods
     }
-}
+}
\ No newline at end of file
diff --git a/src/DotNetCore.CAP/Infrastructure/ObjectId.cs b/src/DotNetCore.CAP/Infrastructure/ObjectId.cs
index d148126..23784fd 100644
--- a/src/DotNetCore.CAP/Infrastructure/ObjectId.cs
+++ b/src/DotNetCore.CAP/Infrastructure/ObjectId.cs
@@ -16,12 +16,14 @@ namespace DotNetCore.CAP
     {
         // private static fields
         private static readonly DateTime __unixEpoch;
+
         private static readonly long __dateTimeMaxValueMillisecondsSinceEpoch;
         private static readonly long __dateTimeMinValueMillisecondsSinceEpoch;
         private static ObjectId __emptyInstance = default(ObjectId);
         private static int __staticMachine;
         private static short __staticPid;
         private static int __staticIncrement; // high byte will be masked out when generating new ObjectId
+
         private static uint[] _lookup32 = Enumerable.Range(0, 256).Select(i =>
         {
             string s = i.ToString("x2");
@@ -32,6 +34,7 @@ namespace DotNetCore.CAP
         // the extra two bytes are not visible to anyone outside of this class and they buy us considerable simplification
         // an additional advantage of this representation is that it will serialize to JSON without any 64 bit overflow problems
         private int _timestamp;
+
         private int _machine;
         private short _pid;
         private int _increment;
@@ -475,6 +478,7 @@ namespace DotNetCore.CAP
 
             return arr;
         }
+
         /// <summary>
         /// Converts a byte array to a hex string.
         /// </summary>
@@ -495,6 +499,7 @@ namespace DotNetCore.CAP
             }
             return new string(result);
         }
+
         /// <summary>
         /// Converts a DateTime to number of milliseconds since Unix epoch.
         /// </summary>
@@ -505,6 +510,7 @@ namespace DotNetCore.CAP
             var utcDateTime = ToUniversalTime(dateTime);
             return (utcDateTime - __unixEpoch).Ticks / 10000;
         }
+
         /// <summary>
         /// Converts a DateTime to UTC (with special handling for MinValue and MaxValue).
         /// </summary>
@@ -537,4 +543,4 @@ namespace DotNetCore.CAP
             return val - (val < 58 ? 48 : (val < 97 ? 55 : 87));
         }
     }
-}
+}
\ No newline at end of file
diff --git a/src/DotNetCore.CAP/Internal/ConsumerInvokerFactory.cs b/src/DotNetCore.CAP/Internal/ConsumerInvokerFactory.cs
index ea200d7..cdcb6d6 100644
--- a/src/DotNetCore.CAP/Internal/ConsumerInvokerFactory.cs
+++ b/src/DotNetCore.CAP/Internal/ConsumerInvokerFactory.cs
@@ -23,7 +23,7 @@ namespace DotNetCore.CAP.Internal
 
         public IConsumerInvoker CreateInvoker(ConsumerContext consumerContext)
         {
-            using(var scope = _serviceProvider.CreateScope())
+            using (var scope = _serviceProvider.CreateScope())
             {
                 var context = new ConsumerInvokerContext(consumerContext)
                 {
diff --git a/src/DotNetCore.CAP/Internal/IModelBinder.ComplexType.cs b/src/DotNetCore.CAP/Internal/IModelBinder.ComplexType.cs
index 6dbcb74..369e01e 100644
--- a/src/DotNetCore.CAP/Internal/IModelBinder.ComplexType.cs
+++ b/src/DotNetCore.CAP/Internal/IModelBinder.ComplexType.cs
@@ -3,7 +3,6 @@ using System.Reflection;
 using System.Threading.Tasks;
 using DotNetCore.CAP.Abstractions.ModelBinding;
 using DotNetCore.CAP.Infrastructure;
-using DotNetCore.CAP.Models;
 
 namespace DotNetCore.CAP.Internal
 {
diff --git a/src/DotNetCore.CAP/Internal/MethodBindException.cs b/src/DotNetCore.CAP/Internal/MethodBindException.cs
index de9fe86..63eb454 100644
--- a/src/DotNetCore.CAP/Internal/MethodBindException.cs
+++ b/src/DotNetCore.CAP/Internal/MethodBindException.cs
@@ -5,8 +5,16 @@ namespace DotNetCore.CAP.Internal
     [Serializable]
     public class MethodBindException : Exception
     {
-        public MethodBindException() { }
-        public MethodBindException(string message) : base(message) { }
-        public MethodBindException(string message, Exception inner) : base(message, inner) { }     
+        public MethodBindException()
+        {
+        }
+
+        public MethodBindException(string message) : base(message)
+        {
+        }
+
+        public MethodBindException(string message, Exception inner) : base(message, inner)
+        {
+        }
     }
-}
+}
\ No newline at end of file
diff --git a/src/DotNetCore.CAP/Models/Message.cs b/src/DotNetCore.CAP/Models/Message.cs
index d739886..f55262a 100644
--- a/src/DotNetCore.CAP/Models/Message.cs
+++ b/src/DotNetCore.CAP/Models/Message.cs
@@ -23,4 +23,4 @@ namespace DotNetCore.CAP.Models
             Content = content;
         }
     }
-}
+}
\ No newline at end of file