更新班级和学生相关功能

TechHelper.Client/Services/ClasssServices.cs

@@ -20,7 +20,16 @@ namespace TechHelper.Client.Services
 
 		public Task<ResponseDto> CreateClass(UserRegistrationToClassDto userClass)
 		{
-			throw new NotImplementedException();
+			try
+			{
+				return Task.FromResult(new ResponseDto { IsSuccessfulRegistration = true });	
+			}
+			catch (Exception ex)
+			{
+				// 实际应用中，这里应该加入日志记录
+				Console.WriteLine($"Error in CreateClass: {ex.Message}");
+				return Task.FromResult(new ResponseDto { IsSuccessfulRegistration = false, Errors = new string[] { ex.Message } });
+			}
 		}
 
 		public async Task<ApiResponse> GetClassStudents()
@@ -56,7 +65,25 @@ namespace TechHelper.Client.Services
 
 		public StudentDto GetStudents(byte Class)
 		{
-			throw new NotImplementedException();
+			try
+			{
+				var result = _client.PostAsJsonAsync("class/getClassStudents", Class);
+				var content = result.Result.Content.ReadAsStringAsync();
+				if (content.Result != null)
+				{
+					var users = JsonConvert.DeserializeObject<StudentDto>(content.Result);
+					return users;
+				}
+				else
+				{
+					return new StudentDto();
+				}
+			}
+			catch (Exception ex)
+			{
+				Console.WriteLine($"获取失败,{ex.Message}, InnerException: {ex.InnerException}");
+				return new StudentDto();
+			}
 		}
 
 		public async Task<ResponseDto> UserRegister(UserRegistrationToClassDto userRegistrationToClassDto)