diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9c6aa19..9b6c392 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,17 @@ set(CMAKE_CXX_STANDARD 14)
 include_directories(include/)
 include_directories(utils/)
 
+
+
+IF (WIN32)
+
+ELSEIF (APPLE)
+    set(OPENSSL_ROOT_DIR /usr/local/opt/openssl@1.1)
+    set(OPENSSL_LIBRARIES /usr/local/opt/openssl@1.1/lib)
+ELSEIF (UNIX)
+
+ENDIF ()
+
 find_package(Boost   REQUIRED thread)
 find_package(OpenSSL 1.1.1 REQUIRED)
 
diff --git a/include/communicate/tcp.h b/include/communicate/tcp.h
new file mode 100644
index 0000000..f545b45
--- /dev/null
+++ b/include/communicate/tcp.h
@@ -0,0 +1,13 @@
+//
+// Created by 胡宇 on 2020/10/23.
+//
+
+#ifndef NET_TCP_H
+#define NET_TCP_H
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#endif //NET_TCP_H
diff --git a/include/communicate/tcp_client.h b/include/communicate/tcp_client.h
index f081424..5dd22d6 100644
--- a/include/communicate/tcp_client.h
+++ b/include/communicate/tcp_client.h
@@ -5,29 +5,28 @@
 #ifndef NET_TCP_CLIENT_H
 #define NET_TCP_CLIENT_H
 
-#include <cstring>
-#include <string>
-#include <stdexcept>
-#include <sstream>
+#include <project.h>
 
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#include <boost/thread/thread.hpp>
+#include "tcp.h"
 
 namespace Net {
 
     class TCPClient {
     public:
+
         TCPClient(const std::string &ip, int port);
 
+        ~TCPClient(){
+            close(fd);
+        }
+
         int sendData(const std::string &data);
 
 
     private:
+
         int fd{};
+
         struct sockaddr_in client_addr{};
 
         std::stringstream recv_buff;
diff --git a/include/communicate/tcp_server.h b/include/communicate/tcp_server.h
index 90288bd..c621772 100644
--- a/include/communicate/tcp_server.h
+++ b/include/communicate/tcp_server.h
@@ -5,21 +5,12 @@
 #ifndef NET_TCP_SERVER_H
 #define NET_TCP_SERVER_H
 
-#include <stdexcept>
-#include <cstdlib>
-#include <cstring>
-#include <vector>
-#include <sstream>
-#include <string>
-#include <queue>
 
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-
-#include <boost/thread/thread.hpp>
-#include <boost/thread/mutex.hpp>
+// 基础依赖
+#include <project.h>
 
+// 扩展依赖
+#include "tcp.h"
 
 namespace Net {
 
@@ -41,6 +32,7 @@ namespace Net {
         uint8_t readByte();
 
     private:
+
         int fd;
         int status = 0;
         struct sockaddr_in server_addr;
diff --git a/include/communicate/tcp_session.h b/include/communicate/tcp_session.h
new file mode 100644
index 0000000..24a1b78
--- /dev/null
+++ b/include/communicate/tcp_session.h
@@ -0,0 +1,27 @@
+//
+// Created by 胡宇 on 2020/10/23.
+//
+
+#ifndef NET_TCP_SESSION_H
+#define NET_TCP_SESSION_H
+
+// 基础依赖
+#include <project.h>
+
+// 扩展依赖
+#include "tcp.h"
+
+class TCPSession {
+public:
+
+    TCPSession(){
+
+    }
+
+private:
+
+
+};
+
+
+#endif //NET_TCP_SESSION_H
diff --git a/include/project.h b/include/project.h
new file mode 100644
index 0000000..7773100
--- /dev/null
+++ b/include/project.h
@@ -0,0 +1,31 @@
+//
+// Created by 胡宇 on 2020/10/23.
+//
+
+#ifndef NET_PROJECT_H
+#define NET_PROJECT_H
+
+// 基础
+#include <cerrno>
+#include <cstdio>
+#include <cstdlib>
+#include <cstdint>
+
+// 基本
+#include <stdexcept>
+#include <cstdlib>
+#include <cstring>
+
+// 流
+#include <sstream>
+
+// 数据结构
+#include <vector>
+#include <string>
+#include <queue>
+
+// 高级组件
+#include <boost/thread/thread.hpp>
+#include <boost/thread/mutex.hpp>
+
+#endif //NET_PROJECT_H
diff --git a/src/communicate/tcp_client.cpp b/src/communicate/tcp_client.cpp
index 2f2053d..fb939fa 100644
--- a/src/communicate/tcp_client.cpp
+++ b/src/communicate/tcp_client.cpp
@@ -4,6 +4,8 @@
 
 #include "communicate/tcp_client.h"
 
+extern int errno;
+
 void Net::TCPClient::recv_data(Net::TCPClient *client) {
     u_char buff[1024];
     int len;
@@ -13,16 +15,18 @@ void Net::TCPClient::recv_data(Net::TCPClient *client) {
 }
 
 void Net::TCPClient::recv_cycle() {
-    boost::thread recv_thread(TCPClient::recv_data,
-                              this);
+    boost::thread recv_thread(TCPClient::recv_data,this);
     recv_thread.detach();
 }
 
 void Net::TCPClient::create_socket_and_connection() {
     if ((fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
-        throw std::runtime_error("create socket failed.");
+        throw std::runtime_error(strerror(errno));
     }
-    connect(fd, (struct sockaddr *) &client_addr, sizeof(client_addr));
+    if(connect(fd, (struct sockaddr *) &client_addr, sizeof(client_addr)) < 0){
+        throw std::runtime_error(strerror(errno));
+    }
+
 }
 
 int Net::TCPClient::sendData(const std::string &data) {
diff --git a/src/communicate/tcp_server.cpp b/src/communicate/tcp_server.cpp
index 578fe72..f70336b 100644
--- a/src/communicate/tcp_server.cpp
+++ b/src/communicate/tcp_server.cpp
@@ -5,6 +5,8 @@
 #include "debug_tools/print_tools.h"
 #include "communicate/tcp_server.h"
 
+extern int errno;
+
 void Net::TCPServer::cycle() {
     boost::thread accept_manager_thread(TCPServer::accept_manager, this);
     this->p_accept_manager_thread = &accept_manager_thread;
@@ -17,7 +19,7 @@ void Net::TCPServer::accept_manager(Net::TCPServer *server) {
         int connect_fd = ::accept(server->fd, nullptr, nullptr);
         Net::PrintTools::debugPrintSuccess("New Connection.");
 
-        if(connect_fd == -1) throw std::runtime_error("accept tcp connection error");
+        if(connect_fd < 0) throw std::runtime_error(strerror(errno));
         else{
             boost::thread accept_thread(TCPServer::accept, connect_fd, &server->buff_mutex, &server->recv_buff, &server->status);
             accept_thread.detach();
@@ -45,24 +47,24 @@ void Net::TCPServer::accept(int fd, boost::mutex *buff_mutex, std::queue<uint8_t
 }
 
 void Net::TCPServer::create_socket(int port) {
-    fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
-    if(!~fd) throw std::runtime_error("could not create socket file.");
+    if((fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) throw std::runtime_error(strerror(errno));
 
     std::memset(&server_addr, 0, sizeof(struct sockaddr_in));
-    server_addr.sin_family = AF_INET;
-    server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
-    server_addr.sin_port = htons(port);
+    this->server_addr.sin_family = AF_INET;
+    this->server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
+    this->server_addr.sin_port = htons(port);
 }
 
 Net::TCPServer::TCPServer(int port, int max_connection) {
 
+    // 创建 socket
     create_socket(port);
 
-    if(bind(fd, (struct sockaddr *) &server_addr, sizeof(server_addr)) == -1)
-        throw std::runtime_error("bind port failed.");
+    if(bind(fd, (struct sockaddr *) &server_addr, sizeof(server_addr)) < 0)
+        throw std::runtime_error(strerror(errno));
 
-    if(listen(fd, max_connection) == -1)
-        throw std::runtime_error("listen socket failed.");
+    if(listen(fd, max_connection) < 0)
+        throw std::runtime_error(strerror(errno));
 
 
     cycle();
diff --git a/src/communicate/tcp_session.cpp b/src/communicate/tcp_session.cpp
new file mode 100644
index 0000000..9652a6f
--- /dev/null
+++ b/src/communicate/tcp_session.cpp
@@ -0,0 +1,5 @@
+//
+// Created by 胡宇 on 2020/10/23.
+//
+
+#include "communicate/tcp_session.h"
diff --git a/test/test_commu/main.cpp b/test/test_commu/main.cpp
index 1d83182..d88ba58 100644
--- a/test/test_commu/main.cpp
+++ b/test/test_commu/main.cpp
@@ -12,11 +12,12 @@
 using namespace Net;
 
 int main(int argc, char *argv[]){
+    PrintTools::debugPrintSuccess("All Started.");
     if(fork() == 0) {
         PrintTools::debugPrintSuccess("Child Started.");
         TCPClient client("127.0.0.1", 9048);
         for(int i = 0; i < 32; i++, usleep(1e4))
-            client.sendData("Hello");
+            client.sendData("Hello\n");
         PrintTools::debugPrintSuccess("Child Exited.");
     }
     else{