diff --git a/xUnitStudy.WebApi.Test/StudentBll/StudentBllTest.cs b/xUnitStudy.WebApi.Test/StudentBll/StudentBllTest.cs
index d4ac5f6..c607e68 100644
--- a/xUnitStudy.WebApi.Test/StudentBll/StudentBllTest.cs
+++ b/xUnitStudy.WebApi.Test/StudentBll/StudentBllTest.cs
@@ -17,15 +17,52 @@ namespace xUnitStudy.WebApi.Test
 {
     public class StudentBllTest:IDisposable
     {
-        private StudentBll bll;
+        #region 准备
+        private StudentBll actualBll;
         public StudentBllTest()
         {
-            bll = new Bll.StudentBll();
+            //这里创建和设置需要注入的IDal。当然也可以创建和设置，直接注入。
+            actualBll = new Bll.StudentBll();
         }
+        #endregion
 
         [Fact]
-        public void GetTuitionTest()
+        public void Students_Test()
         {
+            IStudentBll actual_Bll = new StudentBll();
+            List<Student> studentsFromProperty = actual_Bll.Students;
+            List<Student> studentsFromMethod = actual_Bll.GetAll();
+
+            Assert.Equal(studentsFromMethod, studentsFromProperty);
+        }
+
+        [Fact]
+        public void GetAll_Test()
+        {
+            List<Student> students = actualBll.GetAll();
+
+            Assert.Equal(actualBll.Students, students);
+        }
+
+        [Fact]
+        public void GetStudentById_Test()
+        {
+            var studentId = 1;
+
+            Student student = actualBll.GetStudentById(studentId);
+
+            Assert.NotNull(student);
+            Assert.Equal(studentId, student.Id);
+        }
+
+        /// <summary>
+        /// 获取学费
+        /// 属性注入：IDal Mock对象
+        /// </summary>
+        [Fact]
+        public void GetTuition_UseMoq_Test()
+        {
+            // #准备
             Mock<IStudentDal> mockStudentDal = new Mock<IStudentDal>();
             mockStudentDal
                 .Setup(m => m.GetStudentById(2))
@@ -33,18 +70,23 @@ namespace xUnitStudy.WebApi.Test
                 (
                     new Student() { Id = 2, Name = "小小张", Age = 95 }
                 );
-            //属性注入
-            bll.dal = mockStudentDal.Object;
 
-            var student = bll.GetStudentById(2);
-            var tuition = bll.GetTuition(2);
+            //属性注入,也可以使用构造函数注入
+            actualBll.dal = mockStudentDal.Object;
+
+            // #使用
+            var student = actualBll.GetStudentById(2);
+            var tuition = actualBll.GetTuition(2);
 
+            // #断言
             Assert.Equal(student.Id + student.Age, tuition);
         }
 
+        #region 清理
         public void Dispose()
         {
              
         }
+        #endregion
     }
 }