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16# 路由装饰器
@app.route
# 登陆装饰器
from flask_login import login_required, current_user
@app.route('/')
@login_required
def account():
pass
# 缓存装饰器
from flask_cache import Cache
@app.route('/')
@cache.cached(timeout=60)
def index():
pass
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28# 定义一个装饰器
def check_expired(func):
@wraps(func)
def decorated_function(*args, **kwargs):
# 一些逻辑
return func(*args, **kwargs)
return decorated_function
# 使用
@check_expired
def get_something():
pass;
# 定义一个类装饰器
class Timeit(object):
def __init__(self, func):
self.func = func
def __call__(self, *args, **kwargs):
print("invoking Timer")
def __get__(self, instance, owner):
return lambda *args, **kwargs: self.func(instance, *args, **kwargs)
# 使用
class A(object):
@Timeit
def func(self):
time.sleep(1)
return "invoking method func"