修改了演示代码

.devcontainer/devcontainer.json

@@ -1,14 +1,6 @@
-// For format details, see https://aka.ms/devcontainer.json. For config options, see the
-// README at: https://github.com/devcontainers/templates/tree/main/src/python
 {
 	"name": "Python 3",
-	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
 	"image": "mcr.microsoft.com/devcontainers/python:1-3.12",
-
-	// Features to add to the dev container. More info: https://containers.dev/features.
-	// "features": {},
-
-	// Configure tool-specific properties.
 	"customizations": {
 		// Configure properties specific to VS Code.
 		"vscode": {
@@ -18,22 +10,11 @@
 			]
 		}
 	},
-	
-	// Use 'forwardPorts' to make a list of ports inside the container available locally.
-	// "forwardPorts": [9000],
-
-	// Use 'portsAttributes' to set default properties for specific forwarded ports. 
-	// More info: https://containers.dev/implementors/json_reference/#port-attributes
 	"portsAttributes": {
 		"9000": {
 			"label": "Hello Remote World",
 			"onAutoForward": "notify"
 		}
 	},
-
-	// Use 'postCreateCommand' to run commands after the container is created.
-	"postCreateCommand": "pip3 install -r requirements.txt"
-
-	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
-	// "remoteUser": "root"
+	"postAttachCommand": "python app.py"
 }