习题1：

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加分题：多打印一行
答：Print (‘\n’)

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加分题：在一行的起始位置放一个 ‘#’符号，它的作用是什么？
答：作用是作为注释，不在运行后显示这一行

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加分题：让你的脚本只打印一行
答：
print ('Hello World!', end="")
print ('Hello Again', end="")
print ('I like typing this.',end="")
print ('This is fun.',end="")

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习题2：

A comment, this is so you can read your program later.

Anything after the # is ignored by python.

print "I could have code like this." # and the comment after is ignored

You can also use a comment to "disable" or comment out a piece of code:

print "This won't run."

print "This will run."

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习题3：
print "I will now count my chickens:"
print "Hens", 25 + 30 / 6
print "Roosters", 100 - 25 * 3 % 4
print "Now I will count the eggs:"
print 3 + 2 + 1 - 5 + 4 % 2 - 1 / 4 + 6
print "Is it true that 3 + 2 < 5 - 7?"
print 3 + 2 < 5 - 7
print "What is 3 + 2?", 3 + 2
print "What is 5 - 7?", 5 - 7
print "Oh, that's why it's False."
print "How about some more."
print "Is it greater?", 5 > -2
print "Is it greater or equal?", 5 >= -2
print "Is it less or equal?", 5 <= -2
+加法； -减法; /整除；%取余数； ×乘法；

判断前面的数字比后面的大，返回结果为True/False
<判断前面的数字比后面的小，返回结果为True/False
=判断前面的数字大于等于后面的数字，返回结果为True/False
<=判断前面的数字小于等于后面的数字，返回结果为True/False

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整除//，
print (3 + 2 + 1 - 5 + 4 % 2 - 1 /4 + 6)
print (3 + 2 + 1 - 5 + 4 % 2 - 1 //4 + 6)

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习题4
cars = 100
space_in_a_car = 4.0
drivers = 30
passengers = 90
cars_not_driven = cars - drivers
cars_driven = drivers
carpool_capacity = cars_driven * space_in_a_car
average_passengers_per_car = passengers / cars_driven
print "There are", cars, "cars available."
print "There are only", drivers, "drivers available."
print "There will be", cars_not_driven, "empty cars today."
print "We can transport", carpool_capacity, "people today."
print "We have", passengers, "to carpool today."
print "We need to put about", average_passengers_per_car, "in each car."

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习题5：

-- coding: utf-8--

my_name = 'Zed A. Shaw'
my_age = 35 # not a lie
my_height = 74 # inches
my_weight = 180 # lbs
my_eyes = 'Blue'
my_teeth = 'White'
my_hair = 'Brown'
print ("Let's talk about %s." % my_name)
print ("He's %d inches tall." % my_height)
print ("He's %d pounds heavy." % my_weight)
print ("Actually that's not too heavy.")
print ("He's got %s eyes and %s hair." % (my_eyes, my_hair))
print ("His teeth are usually %s depending on the coffee." % my_teeth)

this line is tricky, try to get it exactly right

print ("If I add %d, %d, and %d I get %d." % (my_age, my_height, my_weight, my_age + my_height + my_weight))

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加分题：去掉”my_”
name = 'Zed A. Shaw'
age = 35 # not a lie
height = 74 # inches
weight = 180 # lbs
eyes = 'Blue'
teeth = 'White'
hair = 'Brown'
print ("Let's talk about %s." % name)
print ("He's %d inches tall." % height)
print ("He's %d pounds heavy." % weight)
print ("Actually that's not too heavy.")
print ("He's got %s eyes and %s hair." % (eyes, hair))
print ("His teeth are usually %s depending on the coffee." % teeth)

this line is tricky, try to get it exactly right

print ("If I add %d, %d, and %d I get %d." % ( age, height, weight, age + height + weight))

习题6
x = "There are %d types of people." % 10
binary = "binary"
do_not = "don't"
y = "Those who know %s and those who %s." % (binary, do_not)
print (x)
print (y)
print ("I said: %r." % x)
print ("I also said: '%s'." % y)
hilarious = False
joke_evaluation = "Isn't that joke so funny?! %r"
print (joke_evaluation % hilarious)
w = "This is the left side of..."
e = "a string with a right side."
print (w + e)

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习题7：
print ("Mary had a little lamb.")
print ("Its fleece was white as %s." % 'snow')
print ("And everywhere that Mary went.")
print ("." * 10)# what'd that do?
end1 = "C"
end2 = "h"
end3 = "e"
end4 = "e"
end5 = "s"
end6 = "e"
end7 = "B"
end8 = "u"
end9 = "r"
end10 = "g"
end11 = "e"
end12 = "r"

watch that comma at the end. try removing it to see what happens

print (end1 + end2 + end3 + end4 + end5 + end6)
print (end7 + end8 + end9 + end10 + end11 + end12)

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习题8：
formatter = "%r %r %r %r"
print (formatter % (1, 2, 3, 4))
print (formatter % ('one', 'two', 'three', 'four'))
print (formatter % (True, False, False, True))
print (formatter % (formatter, formatter, formatter, formatter))
print (formatter % (
"I had this thing.",
"That you could type up right.",
"But it didn't sing.",
"So I said goodnight."))

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语句中无单引号时，打印语句引用单引号；如语句中有单引号时，打印语句引用双引号。

习题9：

Here's some new strange stuff, remember type it exactly.

days = "Mon Tue Wed Thu Fri Sat Sun"
months = "Jan\nFeb\nMar\nApr\nMay\nJun\nJul\nAug"
print ("Here are the days: ", days)
print ("Here are the months: ", months)
print ("""
There's something going on here.
With the three double-quotes.
We'll be able to type as much as we like.
Even 4 lines if we want, or 5, or 6.""")

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习题10：
tabby_cat = "\tI'm tabbed in."
persian_cat = "I'm split\non a line."
backslash_cat = "I'm \ a \ cat."
fat_cat = """
I'll do a list:
\t* Cat food
\t* Fishies
\t* Catnip\n\t* Grass
"""
print (tabby_cat)
print (persian_cat)
print (backslash_cat)
print (fat_cat)

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