diff --git a/src/include/base.h b/src/include/base.h
index 61a14a6..62ad4e9 100644
--- a/src/include/base.h
+++ b/src/include/base.h
@@ -21,6 +21,7 @@
 #include <io.h>
 #include <direct.h>
 #include <winsock.h>
+#include <windows.h>
 #pragma comment (lib, "ws2_32.lib")
 #endif
 
diff --git a/src/src/Client/Client.cpp b/src/src/Client/Client.cpp
index 5619659..b8746d1 100644
--- a/src/src/Client/Client.cpp
+++ b/src/src/Client/Client.cpp
@@ -30,11 +30,12 @@ int Client::recv_cmd(char* buf, int len, int usec)
     struct timeval timeout;
     timeout.tv_sec = usec / 1000;
     timeout.tv_usec = usec % 1000;
-    if (setsockopt(cmd_sock, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout)) == -1) {
+    if (setsockopt(cmd_sock, SOL_SOCKET, SO_RCVTIMEO, (char*)&timeout, sizeof(timeout)) == -1) {
         perror("setsockopt failed:");
     }
 
     int res = recvfrom(cmd_sock, buf, len, 0, (struct sockaddr*) & serv_addr_cmd, &nSize);
+    return res;
 }
 
 int Client::send_file(const char* input_file_name, int path_offs)
@@ -111,17 +112,17 @@ bool Client::sock_init(SOCKET* sock, int port, int is_cmd)
 bool Client::sock_init(int* sock, int port, int is_cmd)
 #endif
 {
-    #ifdef _WIN32
+#ifdef _WIN32
     WSADATA wsaData;
     WSAStartup(MAKEWORD(2, 2), &wsaData);
     *sock = socket(AF_INET, SOCK_DGRAM, 0);
-    #endif
+#endif
 
-    #ifdef __linux__
-    *sock = socket(AF_INET, SOCK_DGRAM, 0);
-    #endif
+#ifdef __linux__
+    * sock = socket(AF_INET, SOCK_DGRAM, 0);
+#endif
 
-    if(is_cmd)
+    if (is_cmd)
     {
         memset(&serv_addr_cmd, 0, sizeof(serv_addr_cmd));
         serv_addr_cmd.sin_family = AF_INET;
@@ -145,7 +146,7 @@ bool Client::set_port(SOCKET* sock, int port,int  is_cmd)
 bool Client::set_port(int* sock, int port, int is_cmd)
 #endif
 {
-    if(is_cmd)
+    if (is_cmd)
     {
         serv_addr_cmd.sin_port = htons(port);
         /*if (bind(*sock, (struct sockaddr*) & serv_addr_cmd, sizeof(sockaddr)) == -1)
@@ -163,7 +164,6 @@ bool Client::set_port(int* sock, int port, int is_cmd)
     }
     return true;
 }
-
 bool Client::send_packet(int len)
 {
     int on=1;
diff --git a/src/src/Client/main.cpp b/src/src/Client/main.cpp
index 7c1e309..3fb4700 100644
--- a/src/src/Client/main.cpp
+++ b/src/src/Client/main.cpp
@@ -1,6 +1,5 @@
-#include "../interface/mainwindow.h"
+#include "../../interface/mainwindow.h"
 #include <QApplication>
-#include "../interface/mainwindow.h"
 #include "../../include/Client/Client.h"
 
 bool parse_arg(int argc, char** argv, char** file_path, char** ip_addr, int* port)
diff --git a/src/src/Server/Server.cpp b/src/src/Server/Server.cpp
index 0fb6268..f643e0c 100644
--- a/src/src/Server/Server.cpp
+++ b/src/src/Server/Server.cpp
@@ -1,5 +1,4 @@
 #include "../../include/Server/Server.h"
-
 Server::Server(int port)
 {
 	cmd_port = port;
@@ -78,7 +77,7 @@ bool Server::check_port()
 		//�˿��ѱ�ռ��
 		//printf("ռ��");
 		start_port++;
-		memset(&serv_addr2, 0, sizeof(serv_addr2));
+		memset(&serv_addr_data, 0, sizeof(serv_addr_data));
 		serv_addr_data.sin_family = AF_INET;
 		serv_addr_data.sin_addr.s_addr = htonl(INADDR_ANY);
 		serv_addr_data.sin_port = htons(start_port);
@@ -515,7 +514,7 @@ bool Server::check_file(char* file_name, int file_len, int pkt_num)
 				loaded_pack_num[temp] = true;
 			}
 			int need_send = total_packet_num - total_loaded_pack_num;
-			int need_send_num[need_send];
+			int *need_send_num = new int[need_send];
 			for (int i = 0, j = 0; i < total_packet_num; i++) 
 			{
 				if (loaded_pack_num[i] == false) 
@@ -532,6 +531,7 @@ bool Server::check_file(char* file_name, int file_len, int pkt_num)
 			if(sendto(cmd_sock, offset, strlen(offset), 0,(struct sockaddr*) & serv_addr_cmd, sizeof(serv_addr_cmd))<0)
 				perror("offset");
 			fclose(logfile);
+			delete(need_send_num);
 			return true;
 		}
 	}
@@ -547,26 +547,26 @@ void mergeFile(char* fileaddress, int package)
     int filelen = strlen(fileaddress);
 
     char* buffaddress;
-    if ((buffaddress = (char*)malloc(sizeof(char) * (filelen + 5))) == NULL)
-        puts("memory not available"), pthread_exit(NULL);
+	if ((buffaddress = (char*)malloc(sizeof(char) * (filelen + 5))) == NULL)
+	{
+		puts("memory not available"); return;
+	}
 
     FILE* dst, * src;
 
-	//for debug
-	puts(fileaddress);
-
-    if ((dst = fopen(fileaddress, "wb")) == NULL)
-        puts("cannot create file"), pthread_exit(NULL);
-    for (int i = 1; i <= package; i++)
+	if ((dst = fopen(fileaddress, "wb")) == NULL)
+	{
+		puts("cannot create file"); return;
+	}
+	for (int i = 1; i <= package; i++)
     {
         sprintf(buffaddress, "%s.%03d", fileaddress, i);
+		if ((src = fopen(buffaddress, "rb")) == NULL)
+		{
+			puts("file not exists"); return;
+		}
+		char sub;
 
-		//for debug
-		puts(buffaddress);
-
-        if ((src = fopen(buffaddress, "rb")) == NULL)
-            puts("file not exists"), pthread_exit(NULL);
-        char sub;
         while (!feof(src))
         {
             sub = fgetc(src);
@@ -576,7 +576,7 @@ void mergeFile(char* fileaddress, int package)
         remove(buffaddress);
     }
     fclose(dst);
-    pthread_exit(NULL);
+	return;
 }
 
 int Server::get_ack(char* data)