如何在page函数之外访问myvar？当page函数内部有print（myvar）时，我可以打印myvar，但当它在page函数外部时，我就不能打印myvar了。

def page(request):
    form = MyForm(request.POST or None)

    if form.is_valid():
        instance = form.save(commit=False)

        myvar = form.cleaned_data.get("myvar")
        # myvar is printed here
        print(myvar)
        if not myvar:
            myvar = "this"
        instance.myvar= myvar
        instance.save()
    context = {
        "form" : form
    }
    return render(request, "home.html", context)

# I want to print the contents of myvar but it doesn't work here
print(myvar)

谢啦，谢啦