【Python爬虫作业】笨办法学python 习题1-10

一、作业内容

笨办法学python 习题1-10

习题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.')

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.")

习题3：

print("I will now count my chickens:")

#print("")

print("Hens",25+30//6)

print("Rooters",100-25*3%4)

#//能够将数字整除，

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?")

#给出一个判断5是否小于-2

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.")

#对判断只能给出false和true两种判断

print("Is it greater?",5> -2)

print("Is it greater or equal?",5>= -2)

print("Is it less or equal?",5<= -2)

习题4：

cars =100

#有100辆车

space_in_a_car =4.0

#每辆车能运输的次数

drivers =30

#司机= 30名

passengers =90

#乘客= 90名

cars_not_driven = cars - drivers

#没有司机驾驶的汽车=总汽车-司机人数

cars_driven = drivers

#有司机的汽车= drivers

carpool_capacity = cars_driven * space_in_a_car

#可运输乘客人次=有司机的汽车*每辆车的运输次数

average_passengers_per_car = passengers / cars_driven

#平均每辆车上安排乘车人数=乘车人数/有司机的汽车数

print("There are",cars,"cars available.")

#有100辆车可供选择

print("There are only",drivers,"drivers available")

#只有30个司机可用

print("There will be",cars_not_driven,"empty cars today.")

#今天会有70辆空车

print("We can transport",carpool_capacity,"people today.")

#今天我们可以运送120人

print("We have",passengers,"to carpool today.")

#我们今天有90人的乘车

print("We need to put about",average_passengers_per_car,"in each car")

#我们需要在每辆车上安排3人

#

习题5：

# -- coding: utf-8 --

name ='Zad A. Shaw'

#我的名字

age =35# not a lie

#我的年龄

height =74# inches

#我的高度

weight =180# lbs

#我的体重

eyes ='Blue'

#我的眼睛

teeth ='White'

#我的牙齿

hair ='Brown'

#我的头发

print("Let's talk about %s."% name)

#让我们来谈谈关于某人

print("He's %d inches tall."% height)

#他的身高

print("He's %d pounds heavy."% weight)

#他的体重

print("Actually that's not too heavy.")

print("He's got %s eyes and %s hair."% (eyes,hair))

#变量2个以上需要使用括号括起来

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))

#%s字符串(采用str()的显示)

#%r字符串(采用repr()的显示)

#%c单个字符

#%b二进制整数

#%d十进制整数

#%i十进制整数

#%o八进制整数

#%x十六进制整数

#%e指数(基底写为e)

#%E指数(基底写为E)

#%f浮点数

#%F浮点数，与上相同

#%g指数(e)�或浮点数(根据显示长度)

#%G指数(E)或浮点数(根据显示长度)

#%%字符"%"

习题6：

x ="There are %d types of people."%10

bianry ="binary"

#把dot赋值给变量do_not.

do_not ="don't"

#把两个格式化变量%时放入字符串those who know  and those中 并把字符串赋值给变量月，变量名分别为bianry,do_not

y ="those who know %s and those who %s."% (bianry,do_not)

#打印变量

print(x)

#打印变量

print(y)

#打印含有格式化变量%r的字符串I said： 变量名为x

print("I said %r ."% x)

print("I also said：'%s."%y)

#变量hilarious是一个布尔值False

hilarious =False

#把格式化的变量%r放入Isn't that joke so funny?并把字符串赋值给变量joke_evaluatio

joke_evaluation ="Isn't that joke so funny?! %r"

#打印joke_evaluatio，变量名是hilarious

print(joke_evaluation % hilarious)

#将字符串This is the left side of..。赋值给变量w

w ="This is the left side of..."

#将字符串a string with a right side赋值给变量

e ="a string with a right side."

#打印变量e和变量w

print(w + e)

习题7：

#打印Mary had a little lamb

print("Mary had a little lamb.")

#打印含有格式化变量%的字符串Its fleece was white as，变量为show

print("Its fleece was white as %s."%'show')

#打印And everywhere that Mary went

print("And everywhere that Mary went.")

#打印字符串，重复10次的结果

print("."*10)# what'd that do?

#将字符重赋值給变量end1

end1 ="c"

#将字符重赋值給变量end2

end2 ="h"

#将字符重赋值給变量end3

end3 ="e"

#将字符重赋值給变量end4

end4 ="e"

#将字符重赋值給变量end5

end5 ="s"

#将字符重赋值給变量end6

end6 ="e"

#将字符重赋值給变量end7

end7 ="B"

#将字符重赋值給变量end8

end8 ="u"

#将字符重赋值給变量end9

end9 ="r"

#将字符重赋值給变量end10

end10 ="g"

#将字符重赋值給变量end11

end11 ="e"

#将字符重赋值給变量end12

end12 ="r"

#将字符重赋值給变量end13

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

#打印end1到end6及end7到end12

print(end1 + end2 + end3 + end4 + end5 +end6)

print(end7 + end8 + end9 + end10 + end11 + end12)

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 % (

"I had this thing.",

"That you could type up right.",

"But it didn't.",

"So I said goodnight."

))

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\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 wa want,or 5,or 6.

""")

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 alist:

\t* Cat food

\t* Fishies

\t* Catnip\n\t*Grass

"""

print(tabby_cat)

print(persian_cat)

print(backslash_cat)

print(fat_cat)