# 2,写函数，接收n个数字，求这些参数数字的和。（动态传参）
# def sum(*num):
# s=0
# for i in num:
# s+=i
# return s
#3,读代码，回答：代码中,打印出来的值a,b,c分别是什么？为什么？
# a=10
# b=20
# def test5(a,b):
# print(a,b)
# c = test5(b,a)
# print(c) #a=20,b=10,c=None
#4,读代码，回答：代码中,打印出来的值a,b,c分别是什么？为什么？
# a=10
# b=20
# def test5(a,b):
# a=3
# b=5
# print(a,b)
# c=test5(a,b) #a=3,b=5,c=None
# print(c)
#5,写函数,传入函数中多个实参(均为可迭代对象如字符串,列表,元祖,集合等),将每个实参的每个元素依次添加到函数的动态参数args里面.
# 例如 传入函数两个参数[1,2,3] (22,33)最终args为(1,2,3,22,33)
# def fn(*args):
# print(args)
# fn(*[1,2,3],*(22,33))
#6,写函数,传入函数中多个实参(实参均为字典),将每个实参的键值对依次添加到函数的动态参数kwargs里面.
# 例如 传入函数两个参数{‘name’:’alex’} {‘age’:1000}最终kwargs为{‘name’:’alex’ ,‘age’:1000}
# def fn(**kwargs):
# print(kwargs)
# fn(**{"name":"alex"} ,**{"age":1000})
#7, 下面代码成立么?如果不成立为什么报错?怎么解决?
# 7.1
# a = 2
# def wrapper():
# print(a)
# wrapper() #成立,输出a=2
#
# # 7.2
# a = 2
# def wrapper():
# global a
# a += 1
# print(a)
# wrapper() #不成立,全局作用域变量与局域作用域变量命名重复,执行错误
# # 7.3
# def wrapper():
# a = 1
# def inner():
# print(a)
# inner()
# wrapper() #成立,输出a=1
# 7.4
# def wrapper():
# a = 1
# def inner():
# nonlocal a
# a += 1
# print(a)
# inner()
# wrapper() #不成立,当前的局域变量中与外一层的局部变量a无法读取
#8，写函数,接收两个数字参数,将较小的数字返回.
# def min(a,b):
# c=a if a<b else b
# return c
#9，写函数,接收一个参数(此参数类型必须是可迭代对象),将可迭代对象的每个元素以’_’相连接,形成新的字符串,并返回.
# 例如 传入的可迭代对象为[1,'老男孩','武sir']返回的结果为’1_老男孩_武sir’
# def func(*args):
# s=""
# for i in args:
# s=s+"_"+str(i)
# s1=s[1:]
# print(s1)
# func(*[1,'老男孩','武sir'])
#10,写函数，传入n个数，返回字典{‘max’:最大值,’min’:最小值}
# 例如:min_max(2,5,7,8,4) 返回:{‘max’:8,’min’:2}(此题用到max(),min()内置函数)
# def fn(**kwargs):
# dic={}
# dic["min"]=min(args)
# dic["max"]=max(args)
# return dic
# print(fn(2,5,7,8,4))
# def fn(*args):
# m=args[0]
# mi=args[0]
# for i in args:
# if i>m:
# m=i
# if i<mi:
# mi=i
# return {'max':m,'min':mi}
# print(fn(2,3,4,34,5,6,7,8))
#11,写函数，传入一个参数n，返回n的阶乘
# 例如:cal(7) 计算7*6*5*4*3*2*1
# def fn(num):
# cal=1
# while num>0:
# cal=cal*num
# num-=1
# print(cal)
# fn(3)
#12写函数，返回一个扑克牌列表，里面有52项，每一项是一个元组
# 例如：[(‘红心’，2),(‘草花’，2), …(‘黑桃’，‘A’)]
# ll=["红心","方块","梅花","黑桃"]
# def fn(*args):
# lst=[]
# for a in args:
# for b in ll:
# if a==1:
# lst.append((b,"A"))
# elif a==11:
# lst.append((b, "J"))
# elif a==12:
# lst.append((b,"Q"))
# elif a==13:
# lst.append((b,"K"))
# else:
# lst.append((b,a))
# print(lst)
# fn(1,2,3,4,5,6,7,8,9,10,11,12,13)
# def func():
# a = ['红心', '草花', '方片', '黑桃']
# b = [2, 3, 4, 5, 6, 7, 8, 9, 10]
# c = ['A', 'J', 'Q', 'K']
# li = []
# for i in b:
# for p in a:
# tp = (p, i)
# li.append(tp)
# for m in c:
# for n in a:
# tp1 = (n, m)
# li.append(tp1)
# print(li)
# print(len(li))
# func()
#13 有如下函数:
# def wrapper():
# def inner():
# print(666)
# wrapper()
# 你可以任意添加代码,用两种或以上的方法,执行inner函数.
# def wrapper():
# def inner():
# print(666)
# inner()
# wrapper()
# def wrapper():
# def inner():
#
# print(666)
# ret=inner()
# print(ret)
# wrapper()
#14.
#1.
# 有函数定义如下：
# def calc(a,b,c,d=1,e=2):
# return (a+b)*(c-d)+e
# 请分别写出下列标号代码的输出结果，如果出错请写出Error。
# print(calc(1,2,3,4,5))__2___
# print(calc(1,2))___Error_
# print(calc(e=4,c=5,a=2,b=3))___ -7
# print(calc(1,2,3))_____8
# print(calc(1,2,3,e=4))____10
# print(calc(1,2,3,d=5,4))__Error___
#2(此题有坑)下面代码打印的结果分别是__list1=["a",10]__list2=[123] list3=["a",10]_____,________,________.
# def extendList(val,list=[]): #默认值参数如果是个可变的数,则会随着运行的结果发生变化
# list.append(val)#如果默认值参数是一个可变的数据类型, 如果有人调用的时候改变了他. 其他位置看到的也跟着改变了
# return list
# list1 = extendList(10) #list1=[10]
# list2 = extendList(123,[]) #list=[123]
# #
# #
# list3 = extendList('a')
#
# print('list1=%s' % list1)
# print('list2=%s' % list2)
# print('list3=%s' % list3)
# 3, 写代码完成99乘法表.(升级题)
# 1 * 1 = 1
# 2 * 1 = 2 2 * 2 = 4
# 3 * 1 = 3 3 * 2 = 6 3 * 3 = 9
# ......
# 9 * 1 = 9 9 * 2 = 18 9 * 3 = 27 9 * 4 = 36 9 * 5 = 45 9 * 6 = 54 9 * 7 = 63 9 * 8 = 72 9 * 9 = 81
# 第一种方法
# print( '
'.join([' '.join(['%s*%s=%-2s' % (y,x,x*y) for y in range(1,x+1)]) for x in range(1,10)]))
# 第二种方法
# for m in range(1,10):
# for n in range(1,m+1):
# print('%s×%s=%s'%(m,n,m*n),end=' ')
# print()
# 第三种方法
# a = 1
# while a <=9:
#
# b = 1
# while b <= a:
# print("%dx%d=%d " % (a, b, a*b), end="")
# b = b + 1
# print() # 换行
# a = a + 1
# a=input("请输入一个数")
# b=0
# for i in a:
# if i.isdigit():
# b=b+1
# print(b)
#
# s=123
# for c in s:
# print(c) 数字不可迭代
# user_list=[
# {"name": "alex", "hobby": "抽烟"},
# {"name": "alex", "hobby": "喝酒"},
# {"name": "alex", "hobby": "烫头"},
# {"name": "wusir", "hobby": "喊麦"},
# {"name": "wusir", "hobby": "街舞"},
# {"name": "alex", "hobby": "泡吧"},
# {"name":"太白", "hobby":"开车"}
# ]
# lst=[]
# for user in user_list:
# for i in lst:
# if user['name']==i['name']:
# i['hobby_list'].append(user['hobby'])
# break
# else:
# dic={}
# dic['name']=user['name']
# dic['hobby_list']=[user['hobby']]
# lst.append(dic)
# print(lst)