修改主页，感觉还可以

templates/blog/upload.html

@@ -0,0 +1,19 @@
+<title>上传文件</title>
+上传文件
+<br>
+目前只支持jpg, jpeg, png, gif
+<form id="upload-form" enctype="multipart/form-data" method="post" action="./">
+    <input type="file" name="img" required>
+    <button type="submit">上传文件</button>
+</form>
+<br>
+<br>
+已上传图片
+<br>
+<br>
+<br>
+{% for image in images %}
+    <a href="{{ url_for('static', filename='upload/img/' + image) }}">
+        <img src="{{ url_for('static', filename='upload/img/' + image) }}" style="width: 10%;" alt="{{ image }}">
+    </a>
+{% endfor %}