flask开发中遇到 Encountered unknown tag 'endblock&#39

flask开发中遇错误，提示如下

jinja2.exceptions.TemplateSyntaxError?jinja2.exceptions.TemplateSyntaxError:?Encountered?unknown?tag?'endblock'.
You?probably?made?a?nesting?mistake.?Jinja?is?expecting?this?tag,?but?currently?looking?for?'elif'?or?'else'?or?'endif'.
The?innermost?block?that?needs?to?be?closed?is?'if'.

这句话的意思是：遇到未知的‘板块’,这个板块是if

{%?extends?"base.html"?%}
{%?import?"bootstrap/wtf.html"?as?wtf?%}
{%?import?'_marcos.html'?as?macros?%}

{%?block?title?%}Flasky{%?endblock?%}

{%?block?page_content?%}
<div?class="page-header">
????<h1>Hello,?{%?if?current_user.is_authenticated?%}{{?current_user.username?}}{%?else?%}Stranger{%?endif?%}!</h1>
</div>
<div>
????{%?if?current_user.can(Permission.WRITE_ARTICLES)?%}
????{{?wtf.quick_form(form)?}}
????{%?endif?%}
</div>
{%?include?'_posts.html'?%}
????{%?if?pagination?%}
????????<div?class="pagination">
????????{{?macros.paginnation_widget(pagination,?".index")?}}
????????</div>
{%?endblock?%}

经过检查发现{% if pagination %} 少了一个结束，所以代码应该为：

{%?include?'_posts.html'?%}
????{%?if?pagination?%}
????????<div?class="pagination">
????????{{?macros.paginnation_widget(pagination,?".index")?}}
????????</div>
????{%?endif?%}
{%?endblock?%}

（编辑：李大同）

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