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)
