shixun_linshi/woniu2/template/error-404.html

{% extends 'base.html' %}   {# 将当前页面继承至base.html母版 #}
{% block content %}

<div class="col-10" style="margin: auto">
    <img src="/img/404.png" class="img-fluid"/>
</div>

<script>
    setTimeout(function () {
        location.href = '/';
    }, 2000);
</script>

{% endblock %}