原始碼
#命名函式
def break_words(stuff):
"""this function will break up words for us."""
#設定變數words 使用.split()命令分割字串
words = stuff.split(' ')
#返回return words
def sort_words(words):
"""sorts the words."""
#返回 使用sorted()命令公升序排序
return sorted(words)
def print_first_word(words):
"""prints the first word after popping it off."""
#.pop(0)命令刪除並返回第乙個元素
word = words.pop(0)
print(word)
def print_last_word(words):
"""prints the last word after poping it off."""
#.pop(-1)命令刪除並返回最後乙個元素
word = words.pop(-1)
print(word)
def sort_sentence(sentence): #sentence句子
"""takes in a full sentence and returns the sorted words."""
words = break_words(sentence)
return sort_words(words)
def print_first_and_last(sentence):
"""prints the first and last words of the sentence."""
words = break_words(sentence)
print_first_word(words)
print_last_word(words)
def print_first_and_last_sorted(sentence):
"""sorts the words then prints the first and last one."""
words = sort_sentence(sentence)
print_first_word(words)
print_last_word(words)
python 3.7.3 (v3.7.3:ef4ec6ed12, mar 25 2019, 22:22:05) [msc v.1916 64 bit (amd64)] on win32
>>> import sys
>>> sys.path
['', 'c:\\python37\\lib\\idlelib', 'c:\\python37\\python37.zip', 'c:\\python37\\dlls', 'c:\\python37\\lib', 'c:\\python37', 'c:\\python37\\lib\\site-packages', 'c:\\users\\gw\\test']
>>> import ex25
>>> sentence = "all good things come to those who wait."
>>> words = ex25.break_words(sentence)
>>> words
['all', 'good', 'things', 'come', 'to', 'those', 'who', 'wait.']
>>> sorted_words = ex25.sort_words(words)
>>> sorted_words
['all', 'come', 'good', 'things', 'those', 'to', 'wait.', 'who']
>>> ex25.print_first_word(words)
all>>> ex25.print_last_word(words)
wait.
>>> words
['good', 'things', 'come', 'to', 'those', 'who']
>>> ex25.print_first_word(sorted_words)
all>>> ex25.print_last_word(sorted_words)
who>>> sorted_words
['come', 'good', 'things', 'those', 'to', 'wait.']
>>> sorted_words = ex25.sort_sentence(sentence)
>>> sorted_words
['all', 'come', 'good', 'things', 'those', 'to', 'wait.', 'who']
>>> ex25.print_first_and_last(sentence)
allwait.
>>> ex25.print_first_and_last_sorted(sentence)
allwho
>>>
《笨辦法學python》習題25 筆記
原文習題 def break words stuff this function will break up words for us words stuff.split return words def sort words words sorts the words.排序return sorte...
《笨辦法學python》習題38 40
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《笨辦法學Python》 習題3
加分習題 系統 mac os 10.14 python 2.7.10 版本 笨辦法學python 第四版 print i will now count my chickens print hens 25 30 6.0 print roosters 100 25 3 4 print now i wil...