修改env,添加port

backend/main.py

@@ -1,12 +1,18 @@
 # run.py
 import uvicorn
+import os
+from dotenv import load_dotenv
 
 if __name__ == "__main__":
+    
+    load_dotenv()
+    PORT = int(os.getenv("PORT", 8000))
+    
     # 启动服务
     uvicorn.run(
         app="app.main:app",
         host="0.0.0.0",
-        port=8000,
+        port=PORT,
         # reload=True,
         workers=1
     )