這是我 views.py 文件from django.shortcuts import renderdef home(request): return render(request, 'home.html',{'name':'irtiza'})def add(request):val1 = int(request.GET['num1'])val2 = int(request.GET['num2'])res = val1 + val2return render(request, "result.html",{'result': res})當我運行此代碼時，我收到此錯誤，錯誤然后我嘗試了這個代碼：def add(request): val1 = int(request.GET.get(['num1'])) val2 = int(request.GET.get(['num2'])) res = val1 + val2 return render(request, "result.html",{'result': res})發生此錯誤。在此輸入圖像描述urls.py 文件from django.urls import path from . import viewsurlpatterns = [ path("",views.home,name="home"), path("add", views.add, name="add")]首頁.html 文件{% extends 'base.html' %}{% block content %}<h1> hello {{name}} </h1><form action="add"> {% csrf_token %} Enter 1st number : <input type="text" name="num1"><br> Enter 2nd number : <input type="text" name="num2"><br> <input type="submit"></form>{% endblock %}結果.html文件{% extends 'base.html' %}{% block content %} Result : {{result}}{% endblock %}當我嘗試POST功能時，它會給出下面提到的錯誤from django.shortcuts import render# Create your views here.def home(request): return render(request, 'home.html',{'name':'irtiza'})def add(request): val1 = int(request.POST['num1']) val2 = int(request.POST['num2']) res = val1 + val2 return render(request, "result.html",{'result': res})MultiValueDictKeyError at /add 'num1' Request Method： GET Request URL： http://127.0.0.1:7000/add?csrfmiddlewaretoken=t6mVWboKI37vxW3zDbVmpnB3j3g89EzjFhikDDMrB4qVEfrNyqG5pebeXgDLAFE0&num1=3&num1=3 Django Version： 3.0.3 Exception Type： MultiValueDictKeyError Exception Value：'num1' Exception Location： C：\Users\irtiza\AppData\Local\Continuum\anaconda3\lib\site-packages\django\utils\datastructures.py in getitem， 第 78 行 Python 可執行文件： C：\Users\irtiza\AppData\Local\Continuum\anaconda3\python.exe Python 版本： 3.7.4我現在應該做什么來解決這個錯誤。這只是一個將兩個數字相加的簡單函數。請幫幫我。
3 回答
慕虎7371278
TA貢獻1802條經驗 獲得超4個贊
您在網址中經過兩次，如下所示...num1
url - http://127.0.0.1:7000/add?csrf.......&num1=2&num1=3
改變它吹...
url - http://127.0.0.1:7000/add?csrf.......&num1=2&num2=3
并通過以下方式獲得它...
def add(request):
val1 = int(request.GET.get('num1'))
val2 = int(request.GET.get('num2'))
res = val1 + val2
return render(request, "result.html",{'result': res})
并從您的表單更改此行，如下所示...
Enter 2nd number : <input type="text" name="num2"><br>
精慕HU
TA貢獻1845條經驗 獲得超8個贊
刪除方括號。它不是必需的。
val1 = int(request.GET.get('num1'))
val2 = int(request.GET.get('num2'))
慕哥9229398
TA貢獻1877條經驗 獲得超6個贊
基本上我在家里的形式上失蹤了（方法=“post或GET”）.html
我所做的更改包括：
家.html
{% extends 'base.html' %}
{% block content %}
<h1> hello {{name}} </h1>
<form action="add" method="POST">
{% csrf_token %}
Enter 1st number : <input type="text" name="num1"><br>
Enter 2nd number : <input type="text" name="num2"><br>
<input type="submit">
</form>
{% endblock %}
views.py
from django.shortcuts import render
def home(request):
return render(request, 'home.html',{'name':'irtiza'})
def add(request):
val1 = int(request.POST['num1'])
val2 = int(request.POST['num2'])
res = val1 + val2
return render(request, "result.html",{'result': res})
然后它工作正常。
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