server.py

from socket import *
import os
from threading import *
class download(Thread):
    def __init__(self,connect,address):
        super().__init__()
        self.connect=connect
        self.address=address
    def run(self) -> None:
        with open('start.txt','r',encoding='utf-8') as f:
            start=f.read()
        self.connect.send(start.encode(encoding='utf-8'))
        while True:
            num = self.connect.recv(1024).decode(encoding='utf-8')
            if num == '1':
                print('请求文字')
                str2 = input('发送:')
                self.connect.send(str2.encode(encoding='utf-8'))
                continue
            elif num == '2':
                print('请求图片')
                list1 = os.listdir('./img')
                str1 = str(list1).replace(' ', '')
                self.connect.send(str1.encode(encoding='utf-8'))
                img_name = self.connect.recv(1024).decode(encoding='utf-8')
                if img_name not in list1:
                    self.connect.send('图片不存在'.encode(encoding='utf-8'))
                else:
                    self.connect.send('发送图片'.encode(encoding='utf-8'))
                    is_send = self.connect.recv(1024).decode(encoding='utf-8')
                    print(img_name)
                    if is_send == '来吧':
                        with open('./img/%s' % img_name, 'rb') as f:
                            print('11')
                            self.connect.send(f.read())

            if num == '3':
                self.connect.send('886'.encode(encoding='utf-8'))
                break

def runfun1():
    server=socket()
    server.bind(('10.7.181.100',8888))
    server.listen(512)
    while True:
        connet,adress=server.accept()
        t=download(connet,adress)
        t.start()

runfun1()

client.py

from socket import *
client=socket()
client.connect(('10.7.181.100',8888))
while True:
   re_data = client.recv(1024)
   print(re_data.decode(encoding='utf-8'))
   if re_data.decode(encoding='utf-8') == '886':
       client.close()
       break
   if re_data.decode(encoding='utf-8')=='发送图片':
       client.send('来吧'.encode(encoding='utf-8'))
       name=input('请输入保存图片的名字:')
       while True:
         my_img = client.recv(1024)
         with open('./newimg/%s.jpg'%name,'ab')as f:
                 f.write(my_img)
         if (len(my_img)<1024):
                 print('图片保存成功')
                 break

   n = input('选择：')
   client.send(n.encode(encoding='utf-8'))