diff --git a/README.md b/README.md
index 26b6c1e..43fc402 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,4 @@
 # RedisStudy
 
-Redis 缓存学习
\ No newline at end of file
+Redis 缓存学习, 使用StackExchange.Redis。 
+命令参考网址 http://www.redis.net.cn
\ No newline at end of file
diff --git a/RedisStudyTest/RedisHashStudyTest.cs b/RedisStudyTest/RedisHashStudyTest.cs
index d76759f..9c5071b 100644
--- a/RedisStudyTest/RedisHashStudyTest.cs
+++ b/RedisStudyTest/RedisHashStudyTest.cs
@@ -3,24 +3,30 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using StackExchange.Redis;
 using Xunit;
+using Xunit.Extensions;
+using Xunit.Serialization;
+using Xunit.Abstractions;
+using Xunit.Sdk;
 
 using RedisStudyModel;
-
-using StackExchange;
-using StackExchange.Redis;
-
 using RedisStuy;
 
 namespace RedisStudyTest
 {
+    /// <summary>
+    /// Redis Hash 类型测试
+    /// </summary>
     public class RedisHashStudyTest : IDisposable
     {
+        #region 初始化
         private IDatabase redisDatabase = null;
         private RedisHashStudy hashStudy = null;
         private List<Student> students;
         private Student student = null;
         private string preHashKey = "RedisStudy:Student:";
+        private int keyExpireSeconds = 20;
 
         /// <summary>
         /// 构造
@@ -69,9 +75,15 @@ namespace RedisStudyTest
                 },
             };
 
-            //hashStudy.AddStudents(students);
+            DeleteExitsStudents();
         }
+        #endregion
 
+        #region 添加或更新学生
+
+        /// <summary>
+        /// 参数异常 测试
+        /// </summary>
         [Fact]
         public void AddStudentExceptionTest()
         {
@@ -84,13 +96,14 @@ namespace RedisStudyTest
         }
 
         /// <summary>
-        /// When参数测试
+        /// 参数 When 测试
         /// </summary>
         [Fact]
         public void AddStudentWhenTest()
         {
             string redisKey = preHashKey + student.Id;
-            //When.NotExists 当前上下文无效
+
+            //当前上下文不能使用： When.Exists
 
             var id_When_NotExists_No = hashStudy.HashSet(redisKey, "Id", student.Id + 1, When.NotExists);
             Assert.True(id_When_NotExists_No);
@@ -98,21 +111,16 @@ namespace RedisStudyTest
             var id_When_NotExists_Yes = hashStudy.HashSet(redisKey, "Id", student.Id + 1, When.NotExists);
             Assert.False(id_When_NotExists_Yes);
 
-            //字段存在，执行成功返回false
-            var id_When_Always_Exists = hashStudy.HashSet(redisKey, "Id", student.Id + 5, When.Always);
+            var id_When_Always_Exists = hashStudy.HashSet(redisKey, "Id", student.Id + 1, When.Always);
             Assert.False(id_When_Always_Exists);
 
-            //字段不存在，执行成功返回true
             var id_When_Always_NotExists = hashStudy.HashSet(redisKey, "Id4", student.Id + 1, When.Always);
             Assert.True(id_When_Always_NotExists);
         }
 
-        [Fact]
-        public void AddStudentCommandFlagTest()
-        {
-            string redisKey = preHashKey + student.Id;
-        }
-
+        /// <summary>
+        /// 添加一个默认学生 测试
+        /// </summary>
         [Fact]
         public void AddStudentTest()
         {
@@ -129,96 +137,219 @@ namespace RedisStudyTest
             Assert.True(addHash);
 
             //设置过期
-            redisDatabase.KeyExpire(redisKey, TimeSpan.FromSeconds(5));
+            redisDatabase.KeyExpire(redisKey, TimeSpan.FromSeconds(keyExpireSeconds));
         }
 
         /// <summary>
-        /// 更新学生异常测试
+        /// 添加一组初始化设置的学生 测试
         /// </summary>
         [Fact]
-        public void UpdateStudentExceptionTest()
+        public void AddStudentsTest()
         {
-            string redisKey = preHashKey + student.Id;
-            //不存在Key
-            Assert.Throws<Exception>(()=> hashStudy.HashSet(string.Empty, "Id", -1));
+            foreach (var temp in students)
+            {
+                string redisKey = preHashKey + temp.Id;
+                var studentEntries = new HashEntry[]
+                {
+                    new HashEntry("Id", temp.Id),
+                    new HashEntry("Name", temp.Name),
+                    new HashEntry("Age", temp.Age),
+                };
+
+                //插入Sudent
+                var addStudent = hashStudy.HashSet(redisKey, studentEntries);
+                Assert.True(addStudent);
+
+                //设置过期
+                redisDatabase.KeyExpire(redisKey, TimeSpan.FromSeconds(keyExpireSeconds));
+            }
         }
 
+
         /// <summary>
-        /// 更新学生
+        /// 添加或更新字段 测试
         /// </summary>
-        [Theory]
-        [InlineData("Id", 1)]
-        [InlineData("Name",1)]
-        [InlineData("Age",1)]
-        public void UpdateStudentTest(RedisValue fieldName, RedisValue value)
+        [Fact]
+        public void SetStudentTest()
         {
-            string redisKey = preHashKey + student.Id;
-            var addOrUpdateOne = hashStudy.HashSet(redisKey, fieldName, value+1);
-            Assert.True(addOrUpdateOne);
-            addOrUpdateOne = hashStudy.HashSet(redisKey, "Name", student.Name + 1);
-            Assert.True(addOrUpdateOne);
-            addOrUpdateOne = hashStudy.HashSet(redisKey, "Age", student.Age + 1);
-            Assert.True(addOrUpdateOne);
+            Assert.True(hashStudy.HashSet(preHashKey + student.Id, "Id", student.Id));
+            Assert.False(hashStudy.HashSet(preHashKey + student.Id, "Id", student.Id));
+
+            Assert.True(hashStudy.HashSet(preHashKey + student.Id, "Name", student.Name));
+            Assert.False(hashStudy.HashSet(preHashKey + student.Id, "Name", student.Name));
+
+            Assert.True(hashStudy.HashSet(preHashKey + student.Id, "Age", student.Age));
+            Assert.False(hashStudy.HashSet(preHashKey + student.Id, "Age", student.Age));
         }
 
-        [Theory]
-        [InlineData(-1)]
-        [InlineData(-2)]
-        [InlineData(-3)]
-        public void DelStudentTest(int studentId)
+        /// <summary>
+        /// 添加或更新字段 测试
+        /// </summary>
+        [Fact]
+        public void SetStudentTest2()
         {
-            Assert.False(redisDatabase.KeyDelete(preHashKey + studentId));
+            Assert.True(hashStudy.HashSet(preHashKey + student.Id, "Id", student.Id));
+            Assert.False(hashStudy.HashSet(preHashKey + student.Id, "Id", student.Id + 1));
+
+            var entrys=new HashEntry[]
+            {
+                new HashEntry("Name", student.Name),
+                new HashEntry("Age", student.Age),
+            };
+
+            var entrys2 = new HashEntry[]
+            {
+                new HashEntry("Name", student.Name+"2"),
+                new HashEntry("Age", student.Age+1),
+            };
+
+            Assert.True(hashStudy.HashSet(preHashKey + student.Id, entrys));
+            Assert.True(hashStudy.HashSet(preHashKey + student.Id, entrys2));
+        }
+
+        /// <summary>
+        /// 特例：Hash表键名为""（空字符串）
+        /// 结果：添加或更新操作能成功，但是字段值插入不进去。
+        /// </summary>
+        [Fact]
+        public void SetStudentEmptyKeyTest()
+        {   
+            Assert.True(hashStudy.HashSet(string.Empty, "Name", "wanggaofeng"));
+            redisDatabase.KeyDelete(string.Empty);
         }
 
-        [Theory]
-        [InlineData(-100)]
-        public void DelStudentTest2(int studentId)
+        /// <summary>
+        /// 特例：Hash表,字段名为""（空字符串）
+        /// 结果：添加或更新操作正常，只是字段键名为""
+        /// </summary>
+        [Fact]
+        public void SetStudentEmptyFieldTest()
         {
-            Assert.False(redisDatabase.KeyDelete(preHashKey + studentId));
+            Assert.True(hashStudy.HashSet(preHashKey + student.Id, "", student.Id));
+            Assert.False(hashStudy.HashSet(preHashKey + student.Id, "", student.Id+1));
+
+            redisDatabase.KeyDelete(preHashKey + student.Id);
         }
 
+        #endregion
+
+        #region 获取
+
+        /// <summary>
+        /// 获取一个学生
+        /// </summary>
         [Fact]
-        public void QueryOneStudentTest()
+        public void GetOneSutdentTest()
         {
-            //hashStudy.AddStudent(this.student);
+            string redisKey = preHashKey + student.Id;
+            var studentEntries = new HashEntry[]
+            {
+                new HashEntry("Id",1),
+                new HashEntry("Name",student.Name),
+                new HashEntry("Age",student.Age),
+            };
+
+            //插入Sudent
+            var addHash = hashStudy.HashSet(redisKey, studentEntries);
+            Assert.True(addHash);
+
+            var entries = hashStudy.HashGetAll(redisKey);
 
-            //var queryStudent = hashStudy.QueryOneStudent(this.student.Id);
+            Assert.NotNull(entries);
 
-            //Assert.NotNull(queryStudent);
-            //Assert.True(this.student.Id==queryStudent.Id);
-            //Assert.True(this.student.Name == queryStudent.Name);
-            //Assert.True(this.student.Age == queryStudent.Age);
+            Student myStudent = new Student()
+            {
+                Id = (int)entries.FirstOrDefault(e=>e.Name=="Id").Value,
+                Name = entries.FirstOrDefault(e => e.Name == "Name").Value,
+                Age = (int)entries.FirstOrDefault(e => e.Name == "Age").Value,
+            };
+
+            Assert.True(myStudent.Id==student.Id && myStudent.Name==student.Name && myStudent.Age==student.Age);
+
+        }
+
+        [Fact]
+        public void GetId()
+        {
+            string redisKey = preHashKey + student.Id;
+
+            Assert.NotEqual(student.Id, hashStudy.HashGet(redisKey,"Id"));
+
+            AddDefaultStudent();
+            Assert.Equal(1, hashStudy.HashGet(redisKey, "Id"));
+        }
+
+        [Fact]
+        public void GetName()
+        {
+            string redisKey = preHashKey + student.Id;
+
+            Assert.NotEqual(student.Name, hashStudy.HashGet(redisKey, "Name").ToString());
+
+            AddDefaultStudent();
+            Assert.Equal(student.Name, hashStudy.HashGet(redisKey, "Name"));
         }
 
         [Fact]
-        public void ExistStudentTest()
+        public void GetAge()
         {
-            //Assert.True(hashStudy.ExistStudent(students[0].Id));
-            //Assert.True(hashStudy.ExistStudent(students[1].Id));
-            //Assert.True(hashStudy.ExistStudent(students[2].Id));
-            //Assert.True(hashStudy.ExistStudent(students[3].Id));
-            //Assert.True(hashStudy.ExistStudent(students[4].Id));
-
-            //Assert.False(hashStudy.ExistStudent(-1000));
-            //Assert.False(hashStudy.ExistStudent(-2000));
+            string redisKey = preHashKey + student.Id;
+
+            Assert.NotEqual(student.Age, hashStudy.HashGet(redisKey, "Age"));
+
+            AddDefaultStudent();
+            Assert.Equal(student.Age, hashStudy.HashGet(redisKey, "Age"));
         }
 
         /// <summary>
-        /// 查询所有学生
+        /// 指定字段是否存在
         /// </summary>
         [Fact]
-        public void QueryAllStudent()
+        public void ExistStudent()
         {
-            //List<Student> students = hashStudy.QueryAllStudents();
+            string redisKey = preHashKey + student.Id;
+            var studentEntries = new HashEntry[]
+            {
+                new HashEntry("Id",1),
+                new HashEntry("Name",student.Name),
+            };
+
+            //插入Sudent
+            var addHash = hashStudy.HashSet(redisKey, studentEntries);
+            Assert.True(addHash);
+
+            Assert.True(hashStudy.HashExists(redisKey, "Id"));
+            Assert.True(hashStudy.HashExists(redisKey, "Name"));
+            Assert.False(hashStudy.HashExists(redisKey, "Age"));
+        }
+
+        #endregion
 
-            //Assert.NotNull(students);
-            //Assert.Equal(students.Count(), students.Count);
+        #region 删除学生
+
+        /// <summary>
+        /// 删除学生
+        /// </summary>
+        [Fact]
+        public void DeleteStudent()
+        {
+            Assert.False(redisDatabase.KeyDelete(preHashKey + "-2000"));
         }
 
+        #endregion
+
         /// <summary>
         /// 清理
         /// </summary>
         public void Dispose()
+        {
+            DeleteExitsStudents();
+        }
+
+        /// <summary>
+        /// 删除Redis中的测试学生
+        /// </summary>
+        private void DeleteExitsStudents()
         {
             if (student != null)
             {
@@ -231,56 +362,18 @@ namespace RedisStudyTest
             }
         }
 
-        #region  辅助方法
-        public HashEntry[] StudentsToHashEntrys(Student student)
+        private void AddDefaultStudent()
         {
-            if (student == null)
-            {
-                return null;
-            }
-
-            var entrys = new List<HashEntry>()
+            string redisKey = preHashKey + student.Id;
+            var studentEntries = new HashEntry[]
             {
-                new HashEntry("Id",student.Id),
+                new HashEntry("Id",1),
                 new HashEntry("Name",student.Name),
                 new HashEntry("Age",student.Age),
             };
-            return entrys.ToArray();
-        }
-
-        public Student HashEntrysToStudent(HashEntry[] hashEntrys)
-        {
-            if (hashEntrys == null)
-            {
-                return null;
-            }
-
-            if (hashEntrys.Length <= 0)
-            {
-                return null;
-            }
-
-            var student = new Student();
-            foreach (var entry in hashEntrys)
-            {
-                switch (entry.Name)
-                {
-                    case "Id":
-                        student.Id = entry.Value.IsInteger ? (int)entry.Value : default(int); ;
-                        break;
-                    case "Name":
-                        student.Name = entry.Value.ToString();
-                        break;
-                    case "Age":
-                        student.Age = entry.Value.IsInteger ? (int)entry.Value : default(int);
-                        break;
-                    default:
-                        break;
-                }
-            }
 
-            return student;
+            //插入Sudent
+            var addHash = hashStudy.HashSet(redisKey, studentEntries);
         }
-        #endregion
     }
 }
diff --git a/RedisStudyTest/RedisHashStudyTest22.cs b/RedisStudyTest/RedisHashStudyTest22.cs
new file mode 100644
index 0000000..64af6d9
--- /dev/null
+++ b/RedisStudyTest/RedisHashStudyTest22.cs
@@ -0,0 +1,196 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xunit;
+
+using RedisStudyModel;
+
+using StackExchange;
+using StackExchange.Redis;
+
+using RedisStuy;
+
+namespace RedisStudyTest
+{
+    public class RedisHashStudyTest : IDisposable
+    {
+        private IDatabase redisDatabase = null;
+        private RedisHashStudy hashStudy = null;
+        private List<Student> students;
+        private Student student = null;
+        private string preHashKey = "RedisStudy:Student:";
+
+        /// <summary>
+        /// 构造
+        /// </summary>
+        public RedisHashStudyTest()
+        {
+            redisDatabase = RedisHelper.GetRedisDatabase();
+            hashStudy = new RedisHashStudy();
+            student = new Student()
+            {
+                Id = 1,
+                Name = "王高峰",
+                Age = 2 * 9
+            };
+            students = new List<Student>()
+            {
+                new Student()
+                {
+                    Id = 1001,
+                    Name = "王高峰",
+                    Age = 11
+                },
+                new Student()
+                {
+                    Id = 1002,
+                    Name = "王高峰2",
+                    Age = 22
+                },
+                new Student()
+                {
+                    Id = 1003,
+                    Name = "王高峰3",
+                    Age = 33
+                },
+                new Student()
+                {
+                    Id = 1004,
+                    Name = "王高峰4",
+                    Age = 44
+                },
+                new Student()
+                {
+                    Id = 1005,
+                    Name = "王高峰5",
+                    Age = 55
+                },
+            };
+
+            //hashStudy.AddStudents(students);
+        }
+
+        [Fact]
+        public void AddStudentExceptionTest()
+        {
+            string redisKey = preHashKey + student.Id;
+            //参数异常测试
+            Assert.Throws<ArgumentNullException>(() => hashStudy.HashSet(string.Empty, null));
+            Assert.Throws<ArgumentNullException>(() => hashStudy.HashSet("", null));
+            Assert.Throws<ArgumentNullException>(() => hashStudy.HashSet(preHashKey + "-1", null));
+            Assert.Throws<ArgumentNullException>(() => hashStudy.HashSet(preHashKey + "-1", new HashEntry[] { }));
+        }
+
+        [Fact]
+        public void AddStudentWhenTest()
+        {
+            string redisKey = preHashKey + student.Id;
+
+            var id_When_NotExists_No = hashStudy.HashSet(redisKey, "Id", student.Id + 1, When.NotExists);
+            Assert.True(id_When_NotExists_No);
+
+            var id_When_NotExists_Yes = hashStudy.HashSet(redisKey, "Id2", student.Id + 1, When.NotExists);
+            Assert.False(id_When_NotExists_Yes);
+
+            var id_When_Exists_Yes = hashStudy.HashSet(redisKey, "Id", student.Id + 1, When.Exists);
+            Assert.True(id_When_Exists_Yes);
+
+            var id_When_Exists_No = hashStudy.HashSet(redisKey, "Id3", student.Id + 1, When.Exists);
+            Assert.False(id_When_Exists_No);
+
+            var id_When_Always_Exists = hashStudy.HashSet(redisKey, "Id", student.Id + 1, When.Always);
+            Assert.True(id_When_Always_Exists);
+
+            var id_When_Always_NotExists = hashStudy.HashSet(redisKey, "Id4", student.Id + 1, When.Always);
+            Assert.True(id_When_Always_NotExists);
+        }
+
+        [Fact]
+        public void AddStudentCommandFlagTest()
+        {
+            string redisKey = preHashKey + student.Id;
+        }
+
+        [Fact]
+        public void AddStudentTest()
+        {
+            string redisKey = preHashKey + student.Id;
+            var studentEntries = new HashEntry[]
+            {
+                new HashEntry("Id",1),
+                new HashEntry("Name",student.Name),
+                new HashEntry("Age",student.Age),
+            };
+
+            //插入Sudent
+            var addHash = hashStudy.HashSet(redisKey, studentEntries, CommandFlags.None);
+            Assert.True(addHash);
+
+            //设置过期
+            redisDatabase.KeyExpire(redisKey, TimeSpan.FromSeconds(5));
+        }
+
+        /// <summary>
+        /// 更新学生异常测试
+        /// </summary>
+        [Fact]
+        public void UpdateStudentExceptionTest()
+        {
+            string redisKey = preHashKey + student.Id;
+            //不存在Key
+            Assert.Throws<Exception>(()=> hashStudy.HashSet(string.Empty, "Id", -1));
+        }
+
+        /// <summary>
+        /// 更新学生:导致测试不能运行
+        /// </summary>
+        [Theory]
+        [InlineData("Id", 1)]
+        [InlineData("Name",1)]
+        [InlineData("Age",1)]
+        public void UpdateStudentTest(RedisValue fieldName, RedisValue value)
+        {
+            string redisKey = preHashKey + student.Id;
+            var addOrUpdateOne = hashStudy.HashSet(redisKey, fieldName, value+1);
+            Assert.True(addOrUpdateOne);
+            addOrUpdateOne = hashStudy.HashSet(redisKey, "Name", student.Name + 1);
+            Assert.True(addOrUpdateOne);
+            addOrUpdateOne = hashStudy.HashSet(redisKey, "Age", student.Age + 1);
+            Assert.True(addOrUpdateOne);
+        }
+
+        [Theory]
+        [InlineData(-1)]
+        [InlineData(-2)]
+        [InlineData(-3)]
+        public void DelStudentTest(int studentId)
+        {
+            Assert.False(redisDatabase.KeyDelete(preHashKey + studentId));
+        }
+
+        [Theory]
+        [InlineData(-100)]
+        public void DelStudentTest2(int studentId)
+        {
+            Assert.False(redisDatabase.KeyDelete(preHashKey + studentId));
+        }
+
+        /// <summary>
+        /// 清理
+        /// </summary>
+        public void Dispose()
+        {
+            if (student != null)
+            {
+                redisDatabase.KeyDelete(preHashKey + student.Id);
+            }
+
+            foreach (var temp in students)
+            {
+                redisDatabase.KeyDelete(preHashKey + temp.Id);
+            }
+        }
+    }
+}
diff --git a/RedisStudyTest/RedisStudyTest.cs b/RedisStudyTest/RedisStudyTest.cs
index 093130e..0be3440 100644
--- a/RedisStudyTest/RedisStudyTest.cs
+++ b/RedisStudyTest/RedisStudyTest.cs
@@ -14,22 +14,20 @@ namespace RedisStudyTest
 {
     public class RedisStudyTest
     {
-        private IServer redisServer;
-        private RedisServerStudy redisServerStudy;
+        private RedisServerStudy _redisServerStudy;
 
         public RedisStudyTest()
         {
-            redisServer = RedisHelper.GetDefaultRedisServer();
-            redisServerStudy = new RedisServerStudy();
+            _redisServerStudy = new RedisServerStudy();
         }
 
         [Fact]
         public void Test()
         {
-           var info= redisServerStudy.RedisInfo();
+            var info = _redisServerStudy.RedisInfo();
 
             Assert.NotEmpty(info);
-            Assert.True(info.Count()>0);
+            Assert.True(info.Any());
         }
     }
 }
diff --git a/RedisStudyTest/RedisStudyTest.csproj b/RedisStudyTest/RedisStudyTest.csproj
index cbeda78..b1bb9f9 100644
--- a/RedisStudyTest/RedisStudyTest.csproj
+++ b/RedisStudyTest/RedisStudyTest.csproj
@@ -74,10 +74,10 @@
     </Reference>
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="RedisHashStudyTest.cs" />
     <Compile Include="RedisLockStudyTest.cs" />
     <Compile Include="RedisStudyTest.cs" />
     <Compile Include="RedisSortSetStudyTest.cs" />
-    <Compile Include="RedisHashStudyTest.cs" />
     <Compile Include="RedisHelperTest.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="RedisServerStudyTest.cs" />
diff --git a/RedisStuy/RedisHashStudy.cs b/RedisStuy/RedisHashStudy.cs
index 4723599..9d60594 100644
--- a/RedisStuy/RedisHashStudy.cs
+++ b/RedisStuy/RedisHashStudy.cs
@@ -141,7 +141,8 @@ namespace RedisStuy
         /// </summary>
         public bool HashSet(RedisKey key, RedisValue hashField, RedisValue value, When when = When.Always, CommandFlags flags = CommandFlags.None)
         {
-            return redisDatabase.HashSet(key, hashField, value, when, flags);
+            var result = redisDatabase.HashSet(key, hashField, value, when, flags);
+            return result;
         }
 
         /// <summary>
@@ -166,11 +167,11 @@ namespace RedisStuy
                 throw new ArgumentNullException("hashFields", "参数hashFields.Length ");
             }
 
-            redisDatabase.HashSet(key, hashFields, flags);
+            
             bool result = false;
             try
             {
-
+                redisDatabase.HashSet(key, hashFields, flags);
                 result = true;
             }
             catch (ArgumentNullException argumentNullException)