flask(8)加装饰器

from flask import Flask
import functools

app = Flask(__name__)


def wapper(func):
    @functools.wraps(func) # 这个很重要喔
    def inner(*args, **kwargs):
        print("before")
        return func(*args, **kwargs)

    return inner


@app.route("/xxx", methods=["GET", "POST"])
@wapper
def index():
    return "hello world!"

if __name__ == '__main__':
    app.run()