How to control the loop variable

This look

Because I am responsible for the front-end, I am not very familiar with views. I want to control them directly in the template. After searching, I found that there is no need to directly use multiplication, division or mod calculation, which is embarrassing.

Reference article: http://blog.csdn.net/rain_qingtian/article/details/41076151

Easy to know, Django template addition:

value=5, then 15 is returned. Django template subtraction:

value=5, then -5 is returned. This is easier to understand. Subtraction is to add a negative number. Django template multiplication:

The above code means: 5/1 *100, returns 500, widthratio requires three parameters, it will use parameter 1/parameter 2 * parameter 3, so if you want to perform multiplication, just set parameter 2 = 1 to perform Django template division

The above code means: 5/100*1, returns 0.05, just set the third parameter to 1.

But these methods are very troublesome to use for remainder division.

Solution: divisibleby tags!

Use Django’s divisibleby tag to implement it, as follows:

{% for each in somelist %}

{% if forloop.counter|divisibleby:2 %}

{% else %}

{% endif %}

{% endfor %}

divisibleby tag is to use the following parameters to remove it, and all the exceptions are True, otherwise it is False.

So, my code changed to:

{% endif %}
{% endfor %}

This solution can also be used for line breaks and style changes, etc.!