python简单实现文件下载

import socket

def main():
# 创建客户端套接字
client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# 连接服务器ip和端口
server_ip = input("请输入服务器ip地址")
server_port = int(input("请输入服务器端口号"))
client_socket.connect((server_ip, server_port))
file_name = input("请输入你要下载的文件名")
# 发送客户端信息
client_socket.send(file_name.encode())
# 接收服务器信息
while True:
recv_data = client_socket.recv(1024)
# print(recv_data.decode())
if recv_data:
file = open("新建"+file_name, "ab")
file.write(recv_data)

client_socket.close()

if __name__ == '__main__':
main()

import socket

def get_file_content(file_name):
try:
file = open(file_name, "r")
content = file.read()
except:
print("没有%s这个文件" % file_name)
else:
file.close()
return content

def main():
# 创建套接字
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# 绑定服务器ip端口
server_socket.bind(('192.168.113.62', 9995))
# 将主动套接字转换为被动套接字
server_socket.listen(128)
while True:
# 等待客户端发送信息
client_socket, client_address = server_socket.accept()
# 接收客户端发送的文件名
rec_data = client_socket.recv(1024)
file_name = rec_data.decode()
file_content = get_file_content(file_name)
if file_content:
client_socket.send(file_content)
print("文件下载完成")
client_socket.close()
server_socket.close()
if __name__ == '__main__':
main()