diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3b6e585..cd1eb76 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,14 +4,16 @@ cmake_minimum_required(VERSION 2.8.4)
 # 项目信息
 project(MiniFTPD)
 
-set(CMAKE_CXX_STANDARD 14)
+# specify the C++ standard
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED True)
 
-# C++ 11
-add_definitions(-std=c++11)
+# 查找指定目录下的所有源文件，
+# 并将名称保存到 DIR_SRCS 变量
+aux_source_directory(src/ DIR_SRCS)
 
 # 指定生成目标
-add_executable(MiniFTPD main.cpp tcp.cpp utility.cpp
-        epoll_event.cpp signal_wrapper.cpp pipe_wrapper.cpp ftp_handler.cpp command_handle.cpp
-        data_handle.cpp buffer.cpp ipc_utility.cpp record_lock.cpp)
+add_executable(MiniFTPD ${DIR_SRCS})
 
+# 添加链接库
 target_link_libraries(MiniFTPD crypt)
\ No newline at end of file
diff --git a/buffer.cpp b/src/buffer.cpp
similarity index 100%
rename from buffer.cpp
rename to src/buffer.cpp
diff --git a/buffer.h b/src/buffer.h
similarity index 100%
rename from buffer.h
rename to src/buffer.h
diff --git a/command_handle.cpp b/src/command_handle.cpp
similarity index 100%
rename from command_handle.cpp
rename to src/command_handle.cpp
diff --git a/command_handle.h b/src/command_handle.h
similarity index 100%
rename from command_handle.h
rename to src/command_handle.h
diff --git a/common.h b/src/common.h
similarity index 100%
rename from common.h
rename to src/common.h
diff --git a/data_handle.cpp b/src/data_handle.cpp
similarity index 100%
rename from data_handle.cpp
rename to src/data_handle.cpp
diff --git a/data_handle.h b/src/data_handle.h
similarity index 100%
rename from data_handle.h
rename to src/data_handle.h
diff --git a/epoll_event.cpp b/src/epoll_event.cpp
similarity index 100%
rename from epoll_event.cpp
rename to src/epoll_event.cpp
diff --git a/epoll_event.h b/src/epoll_event.h
similarity index 100%
rename from epoll_event.h
rename to src/epoll_event.h
diff --git a/ftp_codes.h b/src/ftp_codes.h
similarity index 100%
rename from ftp_codes.h
rename to src/ftp_codes.h
diff --git a/ftp_handler.cpp b/src/ftp_handler.cpp
similarity index 100%
rename from ftp_handler.cpp
rename to src/ftp_handler.cpp
diff --git a/ftp_handler.h b/src/ftp_handler.h
similarity index 100%
rename from ftp_handler.h
rename to src/ftp_handler.h
diff --git a/ipc_utility.cpp b/src/ipc_utility.cpp
similarity index 100%
rename from ipc_utility.cpp
rename to src/ipc_utility.cpp
diff --git a/ipc_utility.h b/src/ipc_utility.h
similarity index 100%
rename from ipc_utility.h
rename to src/ipc_utility.h
diff --git a/main.cpp b/src/main.cpp
similarity index 100%
rename from main.cpp
rename to src/main.cpp
diff --git a/pipe_wrapper.cpp b/src/pipe_wrapper.cpp
similarity index 100%
rename from pipe_wrapper.cpp
rename to src/pipe_wrapper.cpp
diff --git a/pipe_wrapper.h b/src/pipe_wrapper.h
similarity index 100%
rename from pipe_wrapper.h
rename to src/pipe_wrapper.h
diff --git a/record_lock.cpp b/src/record_lock.cpp
similarity index 100%
rename from record_lock.cpp
rename to src/record_lock.cpp
diff --git a/record_lock.h b/src/record_lock.h
similarity index 100%
rename from record_lock.h
rename to src/record_lock.h
diff --git a/signal_wrapper.cpp b/src/signal_wrapper.cpp
similarity index 100%
rename from signal_wrapper.cpp
rename to src/signal_wrapper.cpp
diff --git a/signal_wrapper.h b/src/signal_wrapper.h
similarity index 100%
rename from signal_wrapper.h
rename to src/signal_wrapper.h
diff --git a/tcp.cpp b/src/tcp.cpp
similarity index 100%
rename from tcp.cpp
rename to src/tcp.cpp
diff --git a/tcp.h b/src/tcp.h
similarity index 100%
rename from tcp.h
rename to src/tcp.h
diff --git a/utility.cpp b/src/utility.cpp
similarity index 100%
rename from utility.cpp
rename to src/utility.cpp
diff --git a/utility.h b/src/utility.h
similarity index 100%
rename from utility.h
rename to src/utility.h