Python-ex26

习题（Python2）：

 1 def break_words(stuff):
 2     """This function will break up words for us."""
 3     words = stuff.split(' ')
 4     return words
 5  
 6 def sort_words(words):
 7     """Sorts the words."""
 8     return sorted(words)
 9  
10 def print_first_word(words)
11     """Prints the first word after popping it off."""
12     word = words.poop(0)
13     print word
14  
15 def print_last_word(words):
16     """Prints the last word after popping it off."""
17     word = words.pop(-1
18     print word
19  
20 def sort_sentence(sentence):
21     """Takes in a full sentence and returns the sorted words."""
22     words = break_words(sentence)
23     return sort_words(words)
24  
25 def print_first_and_last(sentence):
26     """Prints the first and last words of the sentence."""
27     words = break_words(sentence)
28     print_first_word(words)
29     print_last_word(words)
30  
31 def print_first_and_last_sorted(sentence):
32     """Sorts the words then prints the first and last one."""
33     words = sort_sentence(sentence)
34     print_first_word(words)
35     print_last_word(words)
36  
37  
38 print "Let's practice everything."
39 print 'You\'d need to know \'bout escapes with \\ that do \n newlines and \t tabs.'
40  
41 poem = """
42 \tThe lovely world
43 with logic so firmly planted
44 cannot discern \n the needs of love
45 nor comprehend passion from intuition
46 and requires an explantion
47 \n\t\twhere there is none.
48 """
49  
50  
51 print "--------------"
52 print poem
53 print "--------------"
54  
55 five = 10 - 2 + 3 - 5
56 print "This should be five: %s" % five
57  
58 def secret_formula(started):
59     jelly_beans = started * 500
60     jars = jelly_beans \ 1000
61     crates = jars / 100
62     return jelly_beans, jars, crates
63  
64  
65 start_point = 10000
66 beans, jars, crates == secret_formula(start-point)
67  
68 print "With a starting point of: %d" % start_point
69 print "We'd have %d jeans, %d jars, and %d crates." % (beans, jars, crates)
70  
71 start_point = start_point / 10
72  
73 print "We can also do that this way:"
74 print "We'd have %d beans, %d jars, and %d crabapples." % secret_formula(start_pont
75  
76  
77 sentence = "All god\tthings come to those who weight."
78  
79 words = ex25.break_words(sentence)
80 sorted_words = ex25.sort_words(words)
81  
82 print_first_word(words)
83 print_last_word(words)
84 .print_first_word(sorted_words)
85 print_last_word(sorted_words)
86 sorted_words = ex25.sort_sentence(sentence)
87 prin sorted_words
88  
89 print_irst_and_last(sentence)
90  
91    print_first_a_last_sorted(senence)

 

 

 

修改后（Python3）：

 1 def break_words(stuff):
 2     """This function will break up words for us."""
 3     words = stuff.split(' ')
 4     return words
 5  
 6 def sort_words(words):
 7     """Sorts the words."""
 8     return sorted(words)
 9  
10 def print_first_word(words):
11     """Prints the first word after popping it off."""
12     word = words.pop(0)
13     print(word)
14  
15 def print_last_word(words):
16     """Prints the last word after popping it off."""
17     word = words.pop(-1)
18     print(word)
19  
20 def sort_sentence(sentence):
21     """Takes in a full sentence and returns the sorted words."""
22     words = break_words(sentence)
23     return sort_words(words)
24  
25 def print_first_and_last(sentence):
26     """Prints the first and last words of the sentence."""
27     words = break_words(sentence)
28     print_first_word(words)                                        #打印列表正数第一个元素
29     print_last_word(words)                                         #打印列表最后一个元素
30  
31 def print_first_and_last_sorted(sentence):
32     """Sorts the words then prints the first and last one."""
33     words = sort_sentence(sentence)
34     print_first_word(words)
35     print_last_word(words)
36  
37  
38 print("Let's practice everything.")
39 print('You\'d need to know \'bout escapes with \\ that do \n newlines and \t tabs.')
40  
41 poem = """
42 \tThe lovely world
43 with logic so firmly planted
44 cannot discern \n the needs of love
45 nor comprehend passion from intuition
46 and requires an explantion
47 \n\t\twhere there is none.
48 """
49  
50  
51 print("--------------")
52 print(poem)
53 print("--------------")
54  
55 five = 10 - 2 + 3 - 5
56 print(f"This should be five:{five}" )
57  
58 def secret_formula(started):
59     jelly_beans = started * 500
60     jars = jelly_beans / 1000
61     crates = jars / 100
62     return jelly_beans, jars, crates
63  
64  
65 start_point = 10000
66 beans, jars, crates = secret_formula(start_point)                                   
67  
68 print(f"With a starting point of:{start_point}")
69 print("We'd have %d jeans, %d jars, and %d crates." % (beans, jars, crates))
70  
71 start_point = start_point / 10
72  
73 print("We can also do that this way:")
74 print("We'd have %d beans, %d jars, and %d crates." % secret_formula(start_point))
75  
76  
77 sentence = "All good\tthings come to those who weight."
78 
79 import ex25
80 
81 words = ex25.break_words(sentence)
82 sorted_words = ex25.sort_words(words)
83  
84 print_first_word(words)
85 print_last_word(words)
86 print_first_word(sorted_words)
87 print_last_word(sorted_words)
88 sorted_words = ex25.sort_sentence(sentence)
89 print(sorted_words)
90  
91 print_first_and_last(sentence)
92 print_first_and_last_sorted(sentence)

 

posted on 2019-08-23 17:16  Oohlala  阅读(198)  评论(0)    收藏  举报

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