一：編寫函式，（函式執行的時間用time.sleep(n)模擬）
import time
def my_index(x,y):
time.sleep(3)
print('{},{},welcome to my index page'.format(x,y)
return 100
import time
def timmer(func):
start_time = time.time()
res = func(*args, **kwargs)
end_time = time.time()
print('run time is {} s.'.format(end_time - start_time))
return res
@timmer
def my_index(x, y):
time.sleep(3)
print('{}, {}, welcome to my index.'.format(x,y))
return 100
res = my_index('egon','tank')
print(res)
import time
def auth(func):
inp_name = input('請輸入你的賬號:').strip()
inp_pwd = input('請輸入你的密碼:').strip()
if inp_name == 'vincent' and inp_pwd == '666':
res = func(*args,**kwargs)
return res
else:
print('賬號或密碼錯誤。')
@auth
def my_index(x,y):
time.sleep(3)
print('{}, {},welcome to my index.'.format(x,y))
return 100
my_index('egon','tank')
注意：從檔案中讀出字串形式的字典，可以用eval('')轉成字典格式
def auth(func):
global login_status
if not login_status:
inp_name = input('請輸入你的賬號:').strip()
inp_pwd = input('請輸入你的密碼:').strip()
with open('db.txt','rt',encoding='utf8') as f:
for line in f:
user_info = eval(line.strip())
if inp_name == user_info.get('name') and inp_pwd == user_info.get('password'):
print('登入成功。')
login_status = 1
res = func(*args,**kwargs)
return res
else:
print('賬號或密碼錯誤，登入失敗。')
return
res = func(*args,**kwargs)
return res
import time
@auth
def index(x,y):
time.sleep(3)
print('{}, {},from index page.'.format(x,y))
return 'return from index'
@auth
def home(name):
time.sleep(2)
print('{} from home page.'.format(name))
return 'return from home'
login_status = 0
index('張三','李四')
home('王五')
index('張三','李四')
def auth(func):
global login_status,login_time
if not login_status:
inp_name = input('請輸入你的賬號:').strip()
inp_pwd = input('請輸入你的密碼:').strip()
with open('db.txt','rt',encoding='utf8') as f:
for line in f:
user_info = eval(line.strip())
if inp_name == user_info.get('name') and inp_pwd == user_info.get('password'):
print('登入成功。')
login_status = 1
login_time = time.time()
res = func(*args,**kwargs)
return res
else:
print('賬號或密碼錯誤，登入失敗。')
return
else:
now_time = time.time()
if now_time - login_time <= 10:
login_status = 1
login_time = time.time()
res = func(*args, **kwargs)
return res
else:
login_status = 0
inp_name = input('請輸入你的賬號:').strip()
inp_pwd = input('請輸入你的密碼:').strip()
with open('db.txt', 'rt', encoding='utf8') as f:
for line in f:
user_info = eval(line.strip())
if inp_name == user_info.get('name') and inp_pwd == user_info.get('password'):
print('登入成功。')
login_status = 1
login_time = time.time()
res = func(*args, **kwargs)
return res
else:
print('賬號或密碼錯誤，登入失敗。')
return
import time
@auth
def index(x,y):
time.sleep(3)
print('{}, {},from index page.'.format(x,y))
return 'return from index'
@auth
def home(name):
time.sleep(2)
print('{} from home page.'.format(name))
return 'return from home'
login_status = 0
login_time = none
index('張三','李四')
time.sleep(5)
home('王五')
Python 有參裝飾器
由於語法糖 的限制，outter函式只能有乙個引數，並且該才是只用來接收 被裝飾物件的記憶體位址 def outter func func 函式的記憶體位址 def args,kwargs res func args,kwargs return res outter outter index def...
python之有參裝飾器
由於語法糖 的限制，outter函式只能有乙個引數，並且該引數只用來接收被裝飾物件的記憶體位址 def outter func func 函式的記憶體位址 res func args,kwargs return res outter outter outter index def index x,y...
python裝飾器 有殘裝飾器 無參裝飾器
裝飾器 修飾別人的工具，修飾新增功能，工具指的是函式 裝飾器本身可以是任何可呼叫物件，被裝飾的物件也可以是任意可呼叫物件 為什麼要用裝飾器 開放封閉原則 對修改是封閉的，對擴充套件是開放的 裝飾器就是為了在不修改被裝飾物件的源 以及呼叫方式的前提下，為期新增新功能 基本裝飾器 usr bin pyt...