将具有相同类的select元素的多个值传递给django视图

from django import forms

class MyForm(forms.Form):
    my_choices = forms.MultipleChoiceField(choices=[('value1', 'Label 1'), ('value2', 'Label 2'), ('value3', 'Label 3')], widget=forms.SelectMultiple(attrs={'class': 'my-select-class'}))

from django.shortcuts import render
from .forms import MyForm

def my_view(request):
    if request.method == 'POST':
        form = MyForm(request.POST)
        if form.is_valid():
            selected_values = form.cleaned_data['my_choices']
            # 处理选中的值
            return render(request, 'success.html', {'selected_values': selected_values})
    else:
        form = MyForm()
    return render(request, 'my_form.html', {'form': form})

<form method="post">
  {% csrf_token %}
  {{ form }}
  <button type="submit">提交</button>
</form>