如何在Django模板中显示当前年份？

What is the inbuilt template tag to display the present year dynamically. Like “2011” what would be the template tag to display that?

The full tag to print just the current year is {% now "Y" %}. Note that the Y must be in quotes.

{% now 'Y' %} is the correct syntax

{% now %}

I have used the following in my Django based website http://pmtboyshostelraipur.pythonanywhere.com/ which works fine as expected (Maybe, by the time you’re reading this post, it would have stopped working because that’s a free hosting so just try in code and see).

{% now 'Y' %}

You can visit & see it in the footer part where I have displayed the current year using the below code(CSS part is omitted so use your own).

<footer class="container-fluid" id="footer">
    <center>
        <p>
           &copy;
           {% now 'Y' %}, 
           PMT Boys hostel <br> 
           All rights reserved
        </p>
    </center>
</footer>

And it is displaying the following centred text in my website’s footer.

©2018, PMT Boys hostel 
All rights reserved

In my template, aside from the current year, I needed a credit card expiration year dropdown with 20 values (starting with the current year). The select values needed to be 2 digits and the display strings 4 digits. To avoid complex template code, I wrote this simple template tag:

@register.filter
def add_current_year(int_value, digits=4):
    if digits == 2:
        return '%02d' % (int_value + datetime.datetime.now().year - 2000)
    return '%d' % (int_value + datetime.datetime.now().year)

And used it in the following manner:

<select name="card_exp_year">
    {% for i in 'iiiiiiiiiiiiiiiiiiii' %}
    <option value="{{ forloop.counter0|add_current_year:2 }}">{{ forloop.counter0|add_current_year:4 }}</option>
    {% endfor %}
</select>