question

 Q:1.1、optparse参数处理

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1、带参数装饰器执行步骤

#本地验证
user,passwd = "abc","123"
 
def auth(auth_type):  
    print("auth func:",auth_type)
    def outer_wrapper(func):   
        def wrapper(*args,**kwargs):  
            print("wrapper func args:",*args,**kwargs)
            username = input("Username:").strip()
            password = input("Password:").strip()
            if auth_type == "local":
                if user == username and passwd == password:
                    print("33[32mUser has passed authentication33[0m")
                    res = func(*args,**kwargs)
                    print("--after authentication")
                    return res
                else:
                    exit("Invalid username or password")
            elif auth_type == "ldap":
                pass
        return wrapper
    return outer_wrapper
 
def index():
    print("welcome to index page")
 
@auth(auth_type="local")  #带参数装饰器
def home():
    print("welcome to home page")
    return "from home"
 
@auth(auth_type="ldap")   #带参数装饰器
def bbs():
    print("welcome  to bbs page")
 
index()
home()
bbs()

2、列表、元组、字典中的深copy、浅copy如何理解？

import copy
name1 = ['a','b',['m','n'],'c']
name2 = copy.copy(name1)
name3 = copy.deepcopy(name1)
print(name1）
print(name2)
print(name3)

name1[0] = 'h'
name1[2][0] = 'M'
print(name1）
print(name2)
print(name3)
结果：
['a', 'b', ['m', 'n'], 'c']
['a', 'b', ['m', 'n'], 'c']

['h', 'b', ['M', 'n'], 'c']
['a', 'b', ['M', 'n'], 'c']
['a', 'b', ['m', 'n'], 'c']