第2章 python实战例子

1、实战例子：

print("Program 'Game Over' 2.0") #字符串输出

print("Same","message","as before") #打印输出多个值

print("Just", #打印输出多个值,这样输出更好

"a bit",

"bigger")

print("Here",end=" ") #end设置为空格,下次调用从它的右边开始

print("it is...") #从end=" " 右边开始

print("""

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║╔╦╣║╔╗║║　 ║║ ═╣║╔╗║║║║║ ═╣║║║

║╚╝║║╔╗║║║║║║ ═╣║╚╝║║║║║ ═╣║ ╣

╚══╝╚╝╚╝╚╩╩╝╚══╝╚══╝╚═╝╚══╝╚╩╝

""")

#线体字欢迎输出,多行注释

input("\n\nPrass the enter key to exit.")

#按回车结束

2、实战例子：

# Fancy Credits

#演示转义序列

print("\t\t\tFancy Credits")

print("\t\t\t \\ \\ \\ \\ \\ \\")

print("\t\t\t\tby")

print("\t\t\tMichael Dawson")

print("\t\t\t \\ \\ \\ \\ \\ \\")

print("\nSpecial thanks goes out to:")

print("My hair stylist,Henry \'The Great,\' who never says \"can\'t.\"")

print("\a")

input("\n\nPress the enter key to exit.")

3、实战例子：

print("\t\t\t \\ \\ \\ \\ \\ \\ \\")

print("\t\t\t \\ \\ \\ \\ \\ \\ \\")

4、实战例子：

print("\nSpecial thanks goes out to:") #“\n”换行符

5、实在例子：

print("My hair stylist,Henry \'the great,\'who never says \"can\'t.\"")

#插入单引号和双引号

6、实战例子：

print("\a")

#蜂鸣声

7、实战例子：

#"+"使用拼接成一个全新的字符串

#"\"使用继续符连接

print("You can concatenate two" + "strings with the '+' operator.")

print("\nThis string" + "may not" + "seem terr" + "ibly impressive." \

+ "But what" + "you don't know" + " is that\n" + "it's one real" \

+ "l" + "y" + "long string, created from the concatenation" \

+ "of" + "twenty-two\n" + "different strings,broken across" \

+ "six lines." + "Now are you" + " impressed?" + "Okay,\n" \

+ "this" + "one" + "long" + "string is now over!")

#字符串的重复使用“*”符

print("Pie" * 10)

8、实战例子：

#Word Problems

#演示数字和数学运算

#加法运算

input("Press the enter key to find out.")

print("2000 -100 + 50 =",2000 - 100 + 50)

#乘法运算

input("Press the enter key to find out.")

print("6 * 3 =", 6 * 3)

#除法运算(取整数)

input("Press the enter key to find out.")

print("107 // 3 =", 107 // 3)

#取模运算

input("Press the enter key to find out.")

print("107 % 4 =", 107 % 4)

input("\n\nPress the enter key to exit.")

9、实战例子：

#Greeter

#演示变量的用法

#声明一个name的变量

name = "Larry"

print(name)

print("Hi,",name)

input("\n\nPress the enter key to exit.")

10、实战例子：

#Personal Greeter

#演示获取用户输入

#将“name”赋值给一个语句

name = input("Hi. What's your name?")

print(name)

print("Hi,",name)

input("\n\nPress the enter key to exit.")

11、实战例子：

Quotation Manipulation

#演示字符串方法

#IBM主席 Thomas Watson在1943年的时候说的

quote= "I think there is a world market for maybe five computers."

print("Original quote:")

print(quote) #默认输出

print("\nIn uppercase:")

print(quote.upper()) #全部字母变成大写

print("\nIn lowercase:")

print(quote.lower()) #全部字母变成小写

print("\nAs a title:")

print(quote.title()) #每个单词首选字母大写

print("\nWith a minor replacement:")

print(quote.replace("five","millions of")) #将maybe后的字母进行更换

print("\nOriginal quote is still:") #将maybe后的默认字母

print(quote)

print("\nIn swapcase:")

print(quote.swapcase())

print("\nIn capitalize")

print(quote.capitalize())

input("\n\nPress the enter key to exit.")

12、实战例子：

# Truse Fund Buddy -Bad

#演示逻辑错误

print("""

╔══╗　　　　　　　 ╔╗ ╔╗　　 ╔═╗　　　　　　　 ╔╗╔╗　　　　　　

║　 ║╔═╗╔═╗╔══╗║╚╗║║╔╦╗║═╣╔═╗╔═╗╔═╗╔╝║╠╣╔═╗╔═╗

║║║║║║║║║║╚╗╔╝║║║║║║║║╠═║║║║║╩╣║║║║║║║║║║║║║║

╚╩╩╝╚═╝╚╩╝ ╚╝ ╚╩╝╚╝╠═║╚═╝║╔╝╚═╝╚╩╝╚═╝╚╝╚╩╝╠╗║

　　　　　　　　　　　　　　 ╚═╝　　 ╚╝　　　　　　　　　 ╚═╝

""")

car = input("Lamborghini Tune-Ups:")

rent = input("Manhattan Apartment:")

jet = input("Private Jet Rental:")

gifts = input("Gifts:")

food = input("Dining Out:")

staff = input("Staff (butlers,chef,driver,assistant):")

guru = input("Personal Guru and Coach:")

games = input("Computer Games:")

total = car + rent + jet + gifts + food + staff + guru + games

print("\nGrand Total:",total)

input("\n\nPress the enter key to exit.")

13、实战例子：

# Truse Fund Buddy -Bad

#演示改后逻辑

print("""

╔══╗　　　　　　　 ╔╗ ╔╗　　 ╔═╗　　　　　　　 ╔╗╔╗　　　　　　

║　 ║╔═╗╔═╗╔══╗║╚╗║║╔╦╗║═╣╔═╗╔═╗╔═╗╔╝║╠╣╔═╗╔═╗

║║║║║║║║║║╚╗╔╝║║║║║║║║╠═║║║║║╩╣║║║║║║║║║║║║║║

╚╩╩╝╚═╝╚╩╝ ╚╝ ╚╩╝╚╝╠═║╚═╝║╔╝╚═╝╚╩╝╚═╝╚╝╚╩╝╠╗║

　　　　　　　　　　　　　　 ╚═╝　　 ╚╝　　　　　　　　　　　 ╚═╝

""")

car = int(input("Lamborghini Tune-Ups:"))

car = int(car) #将字符串转换成整型

rent = int(input("Manhattan Apartment:"))

jet = int(input("Private Jet Rental:"))

gifts = int(input("Gifts:"))

food = int(input("Dining Out:"))

staff = int(input("Staff (butlers,chef,driver,assistant):"))

guru = int(input("Personal Guru and Coach:"))

games = int(input("Computer Games:"))

total = car + rent + jet + gifts + food + staff + guru + games

print("\nGrand Total:",total)

input("\n\nPress the enter key to exit.")

14、实战例子：

# Useless Trivia

#

#从用户那里获得一些个人信息，然后打印出一些与之前有关的真实而无聊的信息

#获取用户输入信息

name = input("Hi. what's your name?")

age = input("How old are you?")

age = int(age)

weight = int(input("Okay,last question. How many pounds do you weigh?"))

#打印小写和大写模式

print("\nIf poet se cummings were to email you,he'd address you as",name.lower())

print("But if ee were mad,he'd call you",name.upper())

called = name * 5 #打印name 5次

print("\nIf a small child were trying to get your attention")

print("your name would become:")

print(called)

#计算秒数

seconds = age * 365 * 24 * 60 * 60

print("\n You're over",seconds, "seconds old.")

15、实战例子

#喜欢的食物练习

food1 = input("请输入喜欢的食物:?")

food2 = input("请输入喜欢的食物:?")

print("喜欢的食物分别是:",food1,food2)

16、实战例子：

#小费计算练习

tip1 = input("请输入餐馆的账单：")

tip2 = input("请输入餐馆的账单：")

Fifteen_percent1 = int(tip1) * 0.15

print("百分之十五的小费是：",Fifteen_percent1)

Fifteen_percent2 = int(tip2) * 0.2

print("百分之二十的小费是：",Fifteen_percent2)

17、实战例子：

#汽车消费税计算

car_price = input("请输入汽车总价格:")

Displacement = input("请输入汽车的排气量:")

car_price = int(car_price)

Displacement = int(Displacement)

if Displacement == 1: #排放量为1的需要缴纳1%

print ("应缴纳消费税为:",int(car_price/1.17*0.01))

elif Displacement == 1.5: #排放量为1.5的需要缴纳3%

print ("应缴纳消费税为:",int(car_price/1.17*0.03))

elif Displacement == 2: #排放量为2的需要缴纳5%

print ("应缴纳消费税为:",int(car_price/1.17*0.05))

elif Displacement == 2.5: #排放量为2.5的需要缴纳12%

print ("应缴纳消费税为:",int(car_price/1.17*0.12))

elif Displacement == 3: #排放量为3的需要缴纳25%

print ("应缴纳消费税为:",int(car_price/1.17*0.25))

elif Displacement == 4: #排放量为4的需要缴纳40%

print ("应缴纳消费税为:",int(car_price/1.17*0.4))

else:

print("输入的排气量太大")