update app.py

@@ -5,7 +5,7 @@
   </component>
   <component name="NewModuleRootManager">
     <content url="file://$MODULE_DIR$" />
-    <orderEntry type="jdk" jdkName="Python 3.12 (venv)" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="pytorch3.10" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
   <component name="TemplatesService">

@@ -3,7 +3,7 @@
   <component name="Black">
     <option name="sdkName" value="Python 3.12 (Desktop)" />
   </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.12 (venv)" project-jdk-type="Python SDK" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="pytorch3.10" project-jdk-type="Python SDK" />
   <component name="PyCharmProfessionalAdvertiser">
     <option name="shown" value="true" />
   </component>

+from flask import render_template
+
+@app.route('/')
+def upload_form():
+    """显示文件上传表单"""
+    return render_template('main.html')
\ No newline at end of file