question = request.args.get('name')
时间: 2023-12-18 20:03:26 浏览: 30
这是一个 Flask 框架中的函数,用于从 HTTP 请求的查询参数中获取名为 name 的参数的值,并将其赋值给变量 question。其中,request 是 Flask 框架中的一个全局变量,用于表示当前的 HTTP 请求对象。args 属性是该对象中的一个字典,包含了 HTTP 请求中所有的查询参数。get 方法用于获取指定名称的查询参数的值,如果该参数不存在,则返回 None。在该代码中,如果 HTTP 请求中包含名为 name 的查询参数,则将其值赋给变量 question。
相关问题
from flask import Flask, request, jsonify import jieba import pandas as pd app = Flask(name) # 读取Excel文件 qa_data = pd.read_excel('questions_answers.xlsx') # 分词函数 def cut_words(text): words = jieba.cut(text) return ' '.join(words) # 匹配问题函数 def match_question(text): # 分词 words = cut_words(text) # 在问题列表中匹配 match = qa_data[qa_data['Question'].apply(lambda x: words in cut_words(x))] if match.empty: return '抱歉,我不知道怎么回答您的问题' else: return match.iloc[0]['Answer'] # 后端接口 @app.route('/api/qa', methods=['POST']) def qa(): # 获取前端传递的问题 question = request.form.get('question') # 进行问题匹配 answer = match_question(question) # 返回结果给前端 return jsonify({'answer': answer}) if name == 'main': app.run(debug=True)发生错误File c:\users\ljimmy\appdata\local\programs\python\python38\lib\site-packages\werkzeug_reloader.py:315, in WatchdogReloaderLoop.init(self, *args, **kwargs) 313 from watchdog.observers import Observer 314 from watchdog.events import PatternMatchingEventHandler --> 315 from watchdog.events import EVENT_TYPE_OPENED 316 from watchdog.events import FileModifiedEvent 318 super().init(*args, **kwargs) ImportError: cannot import name 'EVENT_TYPE_OPENED' from 'watchdog.events' (C:\Users\Ljimmy\AppData\Roaming\Python\Python38\site-packages\watchdog\events.py)如何解决
这是一个 ImportError 异常,提示从 watchdog.events 中无法导入名为 EVENT_TYPE_OPENED 的模块。这通常是由于 watchgod 库的版本问题引起的。
你可以尝试升级 watchdog 库到最新版本,使用以下命令:
```
pip install --upgrade watchdog
```
如果升级后仍然无法解决问题,可以尝试卸载 watchdog 库并重新安装:
```
pip uninstall watchdog
pip install watchdog
```
如果问题仍然存在,请检查你的 Python 环境和依赖库是否正确配置。
Django实现在线考试系统的代码
好的,下面是一个简单的Django在线考试系统的代码示例,供您参考:
### models.py
```python
from django.db import models
from django.contrib.auth.models import User
class Question(models.Model):
title = models.CharField(max_length=256)
content = models.TextField()
options = models.TextField()
answer = models.CharField(max_length=256)
analysis = models.TextField()
difficulty = models.CharField(max_length=32)
class Paper(models.Model):
name = models.CharField(max_length=256)
description = models.TextField()
questions = models.TextField()
class Score(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE)
paper = models.ForeignKey(Paper, on_delete=models.CASCADE)
score = models.IntegerField()
start_time = models.DateTimeField(auto_now_add=True)
end_time = models.DateTimeField(auto_now=True)
```
### forms.py
```python
from django import forms
from .models import Score
class ExamForm(forms.ModelForm):
class Meta:
model = Score
fields = []
def __init__(self, *args, **kwargs):
self.paper = kwargs.pop('paper', None)
super().__init__(*args, **kwargs)
questions = self.paper.questions.split(',')
for question in questions:
self.fields[f'question_{question}'] = forms.CharField(widget=forms.RadioSelect(choices=[(i, x) for i, x in enumerate(self.get_options(question))]))
self.fields[f'question_{question}'].label = self.get_title(question)
def get_title(self, question_id):
question = Question.objects.get(id=question_id)
return question.title
def get_options(self, question_id):
question = Question.objects.get(id=question_id)
return question.options.split(',')
class PaperForm(forms.ModelForm):
class Meta:
model = Paper
fields = ['name', 'description', 'questions']
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['questions'].widget.attrs.update({'class': 'form-control'})
class QuestionForm(forms.ModelForm):
class Meta:
model = Question
fields = ['title', 'content', 'options', 'answer', 'analysis', 'difficulty']
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['options'].widget.attrs.update({'class': 'form-control'})
self.fields['options'].widget.attrs.update({'rows': '3'})
self.fields['analysis'].widget.attrs.update({'class': 'form-control'})
self.fields['analysis'].widget.attrs.update({'rows': '3'})
```
### views.py
```python
from django.shortcuts import render, redirect
from django.contrib.auth.decorators import login_required
from django.contrib import messages
from django.http import HttpResponseForbidden
from django.db.models import Avg, Count
from .models import Question, Paper, Score
from .forms import ExamForm, PaperForm, QuestionForm
def home(request):
papers = Paper.objects.all().annotate(num_questions=Count('questions'))
return render(request, 'exam/home.html', {'papers': papers})
@login_required
def exam(request, paper_id):
paper = Paper.objects.get(id=paper_id)
form = ExamForm(paper=paper)
if request.method == 'POST':
form = ExamForm(request.POST, paper=paper)
if form.is_valid():
score = 0
questions = paper.questions.split(',')
for question in questions:
answer = Question.objects.get(id=question).answer
if form.cleaned_data[f'question_{question}'] == answer:
score += 1
score = Score(user=request.user, paper=paper, score=score)
score.save()
return redirect('exam:score', score.id)
return render(request, 'exam/exam.html', {'paper': paper, 'form': form})
@login_required
def score(request, score_id):
score = Score.objects.get(id=score_id)
if score.user != request.user:
return HttpResponseForbidden()
return render(request, 'exam/score.html', {'score': score})
@login_required
def paper_create(request):
if request.method == 'POST':
form = PaperForm(request.POST)
if form.is_valid():
paper = form.save()
messages.success(request, '试卷创建成功!')
return redirect('exam:paper_edit', paper.id)
else:
form = PaperForm()
return render(request, 'exam/paper_form.html', {'form': form})
@login_required
def paper_edit(request, paper_id):
paper = Paper.objects.get(id=paper_id)
if request.method == 'POST':
form = PaperForm(request.POST, instance=paper)
if form.is_valid():
form.save()
messages.success(request, '试卷修改成功!')
return redirect('exam:paper_edit', paper.id)
else:
form = PaperForm(instance=paper)
return render(request, 'exam/paper_form.html', {'form': form, 'paper': paper})
@login_required
def question_create(request):
if not request.user.is_superuser:
return HttpResponseForbidden()
if request.method == 'POST':
form = QuestionForm(request.POST)
if form.is_valid():
form.save()
messages.success(request, '题目创建成功!')
return redirect('exam:question_create')
else:
form = QuestionForm()
return render(request, 'exam/question_form.html', {'form': form})
```
### urls.py
```python
from django.urls import path
from . import views
app_name = 'exam'
urlpatterns = [
path('', views.home, name='home'),
path('exam/<int:paper_id>/', views.exam, name='exam'),
path('score/<int:score_id>/', views.score, name='score'),
path('paper/create/', views.paper_create, name='paper_create'),
path('paper/edit/<int:paper_id>/', views.paper_edit, name='paper_edit'),
path('question/create/', views.question_create, name='question_create'),
]
```
以上是在线考试系统的简单实现,您可以根据自己的需求进行修改和完善。如果您有任何问题或需要进一步的帮助,请随时联系我。
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