def regAction(request):
user_name = request.POST.get('user_name', '')
password = request.POST.get('password', '')
try:
errors = ''
if len(User.objects.filter(username = user_name)):
errors = "用户已经存在，请更换用户名后注册。"
return render(request, 'reg.html', {'errors': errors})
except Exception as e:
print("Exception:查询错误",e)
User.objects.get_or_create(username=user_name, password=password)
return HttpResponse('注册成功,转到<a href="/login/">登录</a>')
代码老是出问题，要不就异常
