Flask-小试牛刀 待续

Posted 2020-10-20 buyisan

• Web本质

from werkzeug.wrappers import Request, Response
from werkzeug.serving import run_simple


@Request.application
def hello(request):
    return Response(‘Hello World!‘)

if __name__ == ‘__main__‘:

    run_simple(‘localhost‘, 4000, hello)

•  快速入门

from flask import Flask

# 实例化Flask对象
app = Flask(__name__)

# 生成路由关系，并把关系保存到某个地方,app对象的 url_map字段中
@app.route(‘/xxxx‘)  # @decorator # 带参数装饰器.
def index():
    return "Index"

# def index():
#     return "Index"
# app.add_url_rule(‘/xxx‘, "n1", index)  # 添加路由关系的第二种方式

if __name__ == ‘__main__‘:
    # 启动程序，监听用户请求
    # 一旦请求到来，执行 app.__call__方法
    # 封装用户请求
    # 进行路由匹配
    app.run()