python flask english
时间: 2023-06-21 18:24:25 浏览: 64
Python Flask is a lightweight web application framework based on Werkzeug and Jinja 2. Flask provides many useful tools and libraries to help us quickly develop web applications. Flask framework is a "micro" framework, it does not enforce any specific directory structure or project structure, so you can customize it according to your needs.
Using Flask framework, you can easily create RESTful APIs and handle HTTP requests and responses. Flask also provides a simple and easy-to-use template engine Jinja2 for rendering HTML templates.
Here is an example of a simple Flask application:
```python
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello():
return 'Hello, World!'
if __name__ == '__main__':
app.run()
```
This application creates a Flask instance named `app` and defines a route function `hello()`. When a user visits the root URL of the application, the `hello()` function will be called and return `Hello, World!`. Finally, `app.run()` starts the Flask application.