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evilloner's questions

Martin Hope
evilloner
Asked: 2020-08-07 05:36:25 +0000 UTC
  • 0

我们有：models.py

from django.db import models

class Dreams(models.Model):
    dream_text = models.CharField(max_length=1000)
    pub_date = models.DateTimeField('date published')

视图.py

from django.shortcuts import render
from .models import Dreams

def index(request):
    dreams = Dreams.objects.all()
    return render(request, 'main/index.html', {'dreams' : dreams})

def search(request):
    if 'text' in request.GET and request.GET['text']:
        text = request.GET['text']
        search_result = Dreams.objects.filter(dream_text__icontains=text)
        return render(request, 'main/search.html', {'search_result' : search_result})
    else:
        search_result = ""
        return render(request, 'main/search.html', {'search_result' : search_result})

问题：如何不仅通过搜索进行搜索

search_result = Dreams.objects.filter(dream_text__icontains=text)

一个和由

search_result = Dreams.objects.filter(pub_date__icontains=text)

搜索.html

<!DOCTYPE html>
<html lang="ua" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title>OblaCo</title>
    <link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro&display=swap" rel="stylesheet">
    {% load static %}
    <link rel="stylesheet" href="{% static 'main/main_css.css' %}">
  </head>
  <body>
    <div class="main center">
      <h1 class="logo center"><marquee behavior="alternate" scrollamount="2">OblaCo</marquee></h1>

      {% for i in search_result %}
      <div class="dreams center">
        <h4>{{ i.pub_date }}</h4>
        <h5>{{ i.dream_text }}</h5>
      </div>
      {% endfor %}
    </div>
  </body>
</html>
python-3.x
Martin Hope
evilloner
Asked: 2020-07-08 20:29:20 +0000 UTC
  • 0

新手，开始学习python中的socket。有 server.py

import socket
import time
import threading

sock = socket.socket()
sock.bind(('', 9090))
sock.listen(10000000)

clients = []

def clients():
    while True:
        conn, addr = sock.accept()
        if addr not in clients:
            clients.append(addr)
        else:
            pass

t = threading.Thread(target=clients, name='Thread1')
t.start()

while True:
    data = input("Text: ")
    for client in clients:
        sock.sendto(data.encode(), client)

和client.py

import socket

sock = socket.socket()
sock.connect(('localhost', 9090 ))
while True:
    data = sock.recv(1024)
    print(data.decode())

服务器应该将输入的文本发送给所有客户端。但是在至少一个客户端连接后，它会抛出一个错误——'function'类型的参数是不可迭代的。

连接前

后

python-3.x