Python TCP通信之仿文件下载

import socketdef main():
# 创建TCP套接字
tcp_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# 链接服务器
tcp_socket.connect(("127.0.0.1", 5001))
# 获取下载的文件的名字
download_file_name = input("请输入要下载的文件名字：")
# 将文件名字发送到服务器
tcp_socket.send(download_file_name.encode("utf-8"))
# 接收文件中的数据
recv_data = tcp_socket.recv(1024)
if recv_data:
# 保存接收到的数据到一个新的文件中
with open("[新]" + download_file_name, "wb") as f:
f.write(recv_data)
# 关闭套接字
tcp_socket.close()if __name__ == '__main__':
main()

import socketdef main():
# 创建套接字
tcp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# 绑定本地信息
tcp_server_socket.bind(("", 5001))
# 监听
tcp_server_socket.listen(128)
while True:
# 等待客户端的链接
new_client_socket, client_addr = tcp_server_socket.accept()
file_name = new_client_socket.recv(1024).decode("utf-8")
print("客户端(%s)需要下载的文件名字是：%s" % (str(client_addr), file_name))
file_content = None
try:
f = open(file_name, "rb")
file_content = f.read()
f.close()
except Exception as result:
print("没有要下载的文件%s" % file_name)
if file_content:
new_client_socket.send(file_content)
# 关闭套接字
new_client_socket.close()
tcp_server_socket.close()if __name__ == '__main__':
main()