笨方法学习Python-习题26: 恭喜你，现在可以考试了！

从开始学习到现在已经过半了，后面会继续学习到逻辑，并通过条件判断实现有用的功能。

这节练习，就是自己单独做一道试题。“修改脚本代码”

原脚本地址：http://learnpythonthehardway.org/exercise26.txt

注意：原脚本用的是Python2

下面是我对此脚本进行的修改：

def break_words(stuff):
"""This function will break up words for us."""
words = stuff.split(' ')
return words

def sort_words(words):
"""Sorts the words."""
return sorted(words)

#def print_first_word(words)
def print_first_word(words):
"""Prints the first word after popping it off."""
#word = words.poop(0)
word = words.pop(0)
print(word)

def print_last_word(words):
"""Prints the last word after popping it off."""
#word = words.pop(-1
word = words.pop(-1)
print(word)

def sort_sentence(sentence):
"""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)

print("Let's practice everything.")
print('You\'d need to know \'bout escapes with \\ that do \n newlines and \t tabs.')

poem = """
\tThe lovely world
with logic so firmly planted
cannot discern \n the needs of love
nor comprehend passion from intuition
and requires an explantion
\n\t\twhere there is none.
"""

print("--------------")
print(poem)
print("--------------")

#five = 10 - 2 + 3 - 5
five = 10- 2 + 3 - 6
print("This should be five: %s" % five)

def secret_formula(started):
jelly_beans = started * 500
#jars = jelly_beans \ 1000
jars = jelly_beans / 1000
crates = jars / 100
return jelly_beans, jars, crates

start_point = 10000
#beans, jars, crates == secret_formula(start-point)
beans,jars,crates = secret_formula(start_point)

print("With a starting point of: %d" % start_point)
#print("We'd have %d jeans, %d jars, and %d crates." % (beans, jars, crates))
print("We'd have %d beans, %d jars, and %d crates." % (beans, jars, crates))

start_point = start_point / 10

print("We can also do that this way:")
#print "We'd have %d beans, %d jars, and %d crabapples." % secret_formula(start_pont
print("We'd have %d beans, %d jars, and %d crates." % secret_formula(start_point))

#sentence = "All god\tthings come to those who weight."
sentence = "All good things come to those who wait."

#words = ex25.break_words(sentence)
words = break_words(sentence)
#sorted_words = ex25.sort_words(words)
sorted_words = sort_words(words)

print_first_word(words)
print_last_word(words)
#.print_first_word(sorted_words)
print_first_word(sorted_words)
print_last_word(sorted_words)
#sorted_words = ex25.sort_sentence(sentence)
sorted_words = sort_sentence(sentence)
#prin sorted_words
print(sorted_words)
'''
print_i
4000
rst_and_last(sentence)

print_first_a_last_sorted(senence)
'''
print_first_and_last(sentence)
print_first_and_last_sorted(sentence)