习题一：
-*- coding: utf-8 -*-
print("Hello World!")
print("Hello Again")
print("I like typing this.")
print("This is fun.")
print("Yay!Printing.")
print("I'd much rather you 'not'.")
print('I "said" do not touch this.');
加分题：
1.
print("Hello World!")
print("Hello Again")
print("I like typing this.")
print("This is fun.")
print("Yay!Printing.")
print("I'd much rather you 'not'.")
print('I "said" do not touch this.\n');
2.
print("Hello World!",end=' ')
print("Hello Again",end=' ')
print("I like typing this.",end=' ')
print("This is fun.",end=' ')
print("Yay!Printing.",end=' ')
print("I'd much rather you 'not'.",end=' ')
print('I "said" do not touch this.\n',end=' ');
3.“#”的作用为表明此行为注释，python解释器将不做处理。
习题二：
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 pice of code:
print("This won't run.")
print("This will run.")
加分题
习题三：
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 trus 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)
加分题：
1.
打印出"I will now count my chickens:"这句话
print("I will now count my chickens:")
打印出Hens以及“25+30/6”的运算结果
print("Hens",25+30/6)
打印出Roosters，以及“100-25*3%4的运算结果”
print("Roosters",100-25*3%4)
打印出“Now I will count the eggs:”
print("Now I will count the eggs:")
打印出“3+2+1-5+4%2-1/4+6”的运算结果
print(3+2+1-5+4%2-1/4+6)
打印出 “Is it trus 3+2<5-7?”这句话
print("Is it trus 3+2<5-7?")
打印“3+2<5-7” 的运算结果
print(3+2<5-7)
打印出“What is 3+2？”，以及3+2的结果
print("What is 3+2?",3+2)
打印出“What is 5-7？”，以及5-7的结果
print("What is 5-7?",5-7)
打印出“Oh,that's why it's False.”
print("Oh,that's why it's False.")
打印出“How about some more.”
print("How about some more.")
打印出“Is it greater?”，以及5>-2的结果
print("Is it greater?",5>-2)
打印出“Is it greater or equal?”，以及5>=-2的结果(True of False)
print("Is it greater or equal?",5>=-2)
打印出“Is it less or equal?”，以及5<=-2的结果(True of False)
print("Is it less or equal?",5<=-2)
3.
print(666+777)
4.
区别于定点数的一种表示方法，表示更大范围的数。
5.
print("I will now count my chickens:")
print("Hens",25+30。0/6)
print("Roosters",100-25*3%4)
print("Now I will count the eggs:")
print(3+2+1-5+4%2-1.0/4+6)
print("Is it trus 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)
习题四：
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,"cars avalialbe.")
print("There are only",drivers,"drivers avalialbe")
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.")
加分题
错误原因：第八行的car_pool_capacity没有声明
1.只是4的话，在进行运算的时候会造成误差。
2.
3.
为cars赋值100
cars = 100
为space_in_a_car负值4.0
space_in_a_car = 4.0
为drivers赋值30
drivers = 30
为passengers赋值90
passengers = 90
将cars - drivers值赋给cars_not_driven
cars_not_driven = cars - drivers
cars_driven = drivers
carpool_capacity = cars_driven * space_in_a_car
average_passengers_per_car = passengers / cars_driven
习题五：
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("Hia 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)))
加分题
1.
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("Hia 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)))
2.
print("This is %r" % '888')
print("This is %r" % 666)
3.
%s 字符串
%r 原始字符串
%c 单个字符
%d 十进制数
%f 浮点数
%% 字符%
%e 指数e
4.
x=float(input("输入厘米："))
print("%f 厘米为 %f 英寸" % (x,x/2.54))
x=float(input("输入kg："))
print("%f kg为 %f 英镑" % (x,x*(1/0.3732)))
习题六
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)
加分题
1.
通过%d 将10写入字符串，将字符串赋给变量x
x = "There are %d types of people." % 10
将字符串“binary”赋给变量binary
binary = "binary"
将字符串“don't”赋给变量do_not
do_not = "don't"
通过两个%s 将binary 与do_not添加至字符串，将字符串赋给y
y = "Those who know %s and those who %s." % (binary, do_not)
打印x
print(x)
打印y
print(y)
通过%r 将x所代表的字符串添加至需要打印的字符串。
print("I said: %r." % x)
通过%s 将y所代表的字符串添加至需要打印的字符串。
print("I also said: '%s'." % y)
False赋值给hilarious
hilarious = False
将字符串赋给koke_evaluation
joke_evaluation = "Isn't that joke so funny?! %r"
通过joke_evaluation中的%r 将hilarious添加至所打印的字符串中
print(joke_evaluation % hilarious)
将字符串赋给w
w = "This is the left side of..."
将字符串赋给e
e = "a string with a right side."
打印w与e的合并字符串
print(w + e)
2.
y = "Those who know %s and those who %s." % (binary, do_not)
print("I said: %r." % x)
print("I also said: '%s'." % y)
print(joke_evaluation % hilarious)
3.、
4.通过运算符重载实现。
习题七
print("Mary had a little lamb.")
print("Tts fleecs was white as %s." % 'snow')
print("ANd everywhere thar 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"
print(end1 + end2 + end3 + end4 + end5 + end6,)
print(end7 + end8 + end9 + end10 + end11 + end12)
习题八
formatter="%r %r %r %r"
print(formatter % (1,2,3,4))
print(formatter % ('one','two','three','four'))
print(formatter % (formatter,formatter,formatter,formatter))
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."
))
习题九
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("Here are the months:%r" % 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.
""")
习题十
tabby_cat="\tI'm tabbled in."
persian_cat="I'm split \n on a line."
backslash_cat="I'm \\ a \\ cat."
fat_cat='''
I'll do a list:
\t* Cat food
\t* Fishes
\t* Catnip\n\t* Grass
'''
print(tabby_cat)
print(persian_cat)
print(backslash_cat)
print(fat_cat)
