跟着麦叔学flask，感谢b站麦叔

templates/study/edit.html

@@ -0,0 +1,25 @@
+{# 引入base #}
+{% extends 'study/base.html' %}
+
+{# 网站标签 #}
+{% block title %} 编辑 "{{ posts['title'] }}" {% endblock %}
+
+{% block content %}
+
+<form method="post">
+    <div class="form-group">
+        <label for="title">标题</label>
+        <input type="text" name="title" placeholder="标题" class="form-control" value="{{ request.form['title'] or posts['title'] }}">
+        </inpit>
+    </div>
+    <div class="form-group">
+        <label for="content">内容</label>
+        <textarea name="content" placeholder="文章内容" class="form-control">{{ request.form['content'] or posts['content'] }}</textarea>
+    </div>
+    <div class="form-group">
+        <button type="submit" class="btn btn-primary">提交</button>
+    </div>
+</form>    
+
+    
+{% endblock %}