下面是当初看这本书时按照书中的代码做的练习，一行一行敲下来的，都已经试运行过，没有错误（基于python3），练习1-练习10
#ex1.py
1 #print("Hello world!")
2 print("Hello again")
3 print("I like typing this.")
4 print("This is fun.")
5 print('Yay!Printing.')
6 print("I'd much rather you 'not'.")
7 print('I "said" do not touch this.')
8 print('')
#ex2.py
1 # A comment, this is so you can read your program later.
2 # Anything after the # is ignored by python.
3
4 print("I could have code like this.") # and the comment after is ignored)
5
6 # You can also use a comment to "disable"or comment out a piece of code:
7 # print("This won't run.")
8
9 print("This will run.")
#ex3.py
1 print("I will now count my chickens:")
2
3 print("Hens",25+30/6)
4 print("Poosters",100-25*3%4)
5
6 print("Now I will count the eggs:")
7
8 print(3+2+1-5+4%2-1//4+6)
9
10 print("Is it true that 3+2<5-7?")
11
12 print(3+2<5-7)
13
14 print("What is 3+2?",3+2)
15 print("What is 5-7?",5-7)
16
17 print("Oh,that's why it's False.")
18
19 print("How about some more.")
20
21 print("Is it greater?",5 > -2)
22 print("Is it greater or equal?",5 >= -2)
23 print("Is it less or equal?",5 <= -2)
#ex4.py
1 #给变量cars赋值为100
2 cars = 100
3 #给变量space_in_a_car赋值为4.0
4 space_in_a_car = 4
5 #给变量drivers赋值为30
6 drivers = 30
7 #给变量passengers赋值为90
8 passengers = 90
9 cars_not_driven = cars - drivers
10 cars_driven = drivers
11 carpool_capacity = cars_driven * space_in_a_car
12 average_passengers_per_car = passengers // cars_driven
13
14
15 print("There are",cars,"cars available.")
16 print("There are only",drivers,"drivers available.")
17 print("There will be",cars_not_driven,"empty cars today.")
18 print("We can transport",carpool_capacity,"people today.")
19 print("We have",passengers,"to carpool today.")
20 print("We need to put about",average_passengers_per_car,"in each car.")
#ex5.py
1 my_name = 'Zed A. Shaw'
2 my_age = 35 # not a lie
3 my_height = 74 # inches
4 my_weight = 180 #lbs
5 my_eyes = 'Blue'
6 my_teeth = 'White'
7 my_hair = 'Brown'
8
9 print("Let's talk about %s."% my_name)
10 print("He's %d inches tall."% my_height)
11 print("He's %d pounds heavy."% my_weight)
12 print("Actually that's not too heavy.")
13 print("His teeth are usually %s depending on the coffee."% my_teeth)
14
15 # this line is tricky,try to get it exactly right
16 print("If I add %d,%d,and %d I get %d."%(my_age,my_height,my_weight,my_age+my_height+my_weight))
#ex6.py
1 x = "There are %d types of people."%10
2 binary = "binary"
3 do_not = "don't"
4 y = "Those who know %s and those who %s."%(binary,do_not)
5
6 print(x)
7 print(y)
8
9 print("I said:%r."%x)
10 print("I also said:'%s'."%y)
11
12 hilarious = False
13 joke_evaluation = "Isn't that joke so funny?!%r"
14
15 print(joke_evaluation % hilarious)
16
17 w = "This is the left side of..."
18 e = "a string with a right side."
19
20 print(w+e)
#ex7.py
1 print("Mary had a little lamb.")
2 print("Its fleece was white as %s."%'snow')
3 print("And everywhere that Mary went.")
4 print("."*10) # what'd that do?
5
6 end1 = "C"
7 end2 = "h"
8 end3 = "e"
9 end4 = "e"
10 end5 = "s"
11 end6 = "e"
12 end7 = "B"
13 end8 = "u"
14 end9 = "r"
15 end10 = "g"
16 end11 = "e"
17 end12 = "r"
18
19 # watch that comma at the end. try removing it to see what happens
20
21 print(end1+end2+end3+end4+end5+end6,end=" ")
22 print(end7+end8+end9+end10+end11+end12)
#ex8.py
1 formatter = "%r %r %r %r"
2
3 print(formatter %(1,2,3,4))
4 print(formatter %("one","two","three","four"))
5 print(formatter %(True,False,False,True))
6 print(formatter %(formatter,formatter,formatter,formatter))
7 print(formatter %(
8 "I had this thing.",
9 "That you could type up right.",
10 "But it didn't sing.",
11 "So I said goodnight."
12 ))
#ex9.py
1 # Here's some new strange stuff,remember type it exactly.
2
3 days = "Mon Tue Wed Thu Fri Sat Sun"
4 months = "Jan\nFeb\nMar\nApr\nMay\nJun\nJul\nAug"
5
6 print("Here are the days: ",days)
7 print("Here are the months: ",months)
8
9 print("""
10 There's something going on here.
11 With the three double-quotes.
12 We'll be able to type as much as we like.
13 Even 4 lines if we want,or 5,or 6.
14 """)
#ex10.py
1 tabby_cat = "\tI'm tabbed in."
2 persian_cat = "I'm split\non a line."
3 backslash_cat = "I'm \\a\\ cat."
4
5 fat_cat = '''
6 I'll do a list:
7 \t* Cat food
8 \t* Fishies
9 \t* Catnip\n\t* Grass
10 '''
11
12 print(tabby_cat)
13 print(persian_cat)
14 print(backslash_cat)
15 print(fat_cat)
