import socket
        
        def send_file_2_client(client_socket, client_addr):
        	
        	# 接收下載檔名
        	file_name = client_socket.recv(1024).decode("utf-8")
        	print("要下載的檔案是 %s " %  file_name)
        
        	file_contect = ""
        	# 開啟檔案
        	try:
        		f=
 
open(file_name, "rb")
        		file_content = f.read()
        		f.close()
        		client_socket.send(file_content)
        	except Exception as ret:
        		print("沒有要下載的檔案 %s" % file_name)
        
        
        def main():
        	# 1.買個手機
        	tcp_server_socket = socket.socket(socket.
 
AF_INET, socket.SOCK_STREAM)
        	
        	# 2 插入手機卡
        	tcp_server_socket.bind(("",9996))
        	
        	# 3 設定手機為監聽模式（SOCKET主動變成被動連線模式）
        	tcp_server_socket.listen(128)
        	
        	# 4 等待接電話（等待客戶端的連線）
        	client_socket, client_addr = tcp_server_socket.accept()
        	
        	send_file_2_client
 
(client_socket, client_addr)
        	
        	client_socket.close()
        	#print("client_socket.close")
        	tcp_server_socket.close()
        	#print("server_socket.close")
        if __name__ == "__main__":
        	main()