# from collections import Iterable#collections模块的Iterable类型判断

# dict1 = {'a':111,'b':222,'c':333}

# print(dict1.keys())#dict_keys(['a', 'b', 'c'])

# print(dict1.values())#dict_values([111, 222, 333])

# print(dict1.items())#dict_items([('a', 111), ('b', 222), ('c', 333)])

# for key,value in dict1.items():

#     print(key,'---',value)

# #a --- 111

# #b --- 222

# #c --- 333

# print(isinstance('abc',Iterable))#True  str是否可迭代

# print(isinstance([1,2,3],Iterable))#True    list是否可迭代

# print(isinstance(123,Iterable))#False   整数是否可迭代

# for i,item in enumerate(['a','b','c']):#list下标循环，内置的enumerate函数可以把一个list变成索引-元素对

#     print(i,'---',item)

# #0 --- a

# #1 --- b

# #2 --- c

# for x,y in [(1,11),(2,22),(3,33)]:

#     print(x,'---',y)

# #1 --- 11

# #2 --- 22

# #3 --- 33

arr = [1,2,3,4,5,6,1,3,9]

def findMaxMin(arr):

    max = 0

    min = 0

    if not isinstance(arr,(list)):

        print('传入的不是list')

        return

    else:

        for i,item in enumerate(arr):

            if i == 0:

                min = item

            elif item < min:

                min = item

            elif item > max:

                max = item

    return (max,min)

print(findMaxMin(arr))