习题1：第一个程序
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 rouch this.')
加分习题
1. 让你的脚本再多打印一行。
举例：print("Hello ；World!")
2. 让你的脚本只打印一行。
举例：print("Hello World!")
3. 在一行的起始位置放一个 ‘#’ (octothorpe) 符号。它的作用是什么？
‘#’ (octothorpe) 符号--单行注释所用
习题2：注释和井号
#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：数字和数学计算
print("I will now count mu 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("It is 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("It is greater?",5> -2)
print("It is greater or equal?",5>= -2)
print("It is less or equral?",5<= -2)
习题 4: 变量(variable) 和命名
cars =100
space_in_a_car =4.0
drives =30
passengers =90
cars_not_driven = cars - drives
cars_driven = drives
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",drives,"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.")
习题 5:更多的变量和打印
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 %r."%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))
习题 6: 字符串(string)和文本
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)
习题 7:更多打印
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)
习题 8: 打印，打印
formatter ="%r %r %r %r"
print(formatter % (1,2,3,4))
print(formatter % ("one","two","three","four"))
print(formatter % (True,False,True,False))
print(formatter % (formatter,formatter,formatter,formatter))
print(formatter % ("I had this thing.","That you could type up right.","But it didn't ding.","So I said goodnight"))
习题9：打印，打印，打印
# 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.
''')
习题10：那是什么？
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)
