python教程6-3：排序

（a）、输入一串数字、并从大到小排列。

（b）、跟a一样，不过要用字典序从大到小排列。

python35 PaiXu_6_3.py

PaiXu_6_3.py

#coding=utf-8

import string

print ("Welcome to the PaiXu v1.0")

print ("Must be num.")

myInput = input('Are you ready?')

#myInput2 = {'host':'192.168.1.1', 'port':80}

def dict2list(dic:dict):

    keys = dic.keys()

    vals =
dic.values()

    lst = [(key, val) for
key, val in zip (keys, vals)]

    return lst

if myInput.isnumeric() == True:

    print
("(a)、输入一串数字、并从大到小排列。")

    myInput1 =
sorted(myInput)

    print
(myInput1[::-1])

    print
("(b)、跟a一样。不过要用字典序从大到小排列。")

    print
(myInput[::-1])

    #print
(sorted(dict2list(myInput2), key = lambda x:x[0],
reverse=True))

else:

    print (myInput + "is not
num.")