def loginView(request):
if request.method == "POST":
user = request.POST['user']
pwd = request.POST['pwd']
check = request.POST['check']
isRemember = request.POST['isRemember']
if isRemember:
request.session['user'] = user
request.session['pwd'] = pwd
else:
del request.session['user']
del request.session['pwd']
if user.strip(" ") == "" or pwd.strip(" ") == "" or check != "bi-check-circle-fill":
if user.strip(" ") == "":
return HttpResponse("OK")
return render(request,'login.html')

代码如上，是一个登陆验证，判断如果用户没有输入用户名的话返回return HttpResponse("OK")，但是无论如何都只会返回login.html，不管用render还是redirect都一样

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if后边为真才会执行