python从入门到编程习题2-4章

#2-8

print(5+3)

print(9-1)

print(2*4)

print(int(16/2))

#2-9

a=6

print("我最喜欢的数字"+":"+str(a))

#3-1姓名

s1=["xiaoming","xiaohong","xiaogang"]

print(s1)

#3-2问候语

print("Hello,"+str(s1[0]))

print("Hello,"+str(s1[1]))

print("Hello,"+str(s1[2]))

#3-3自己的列表

d=["car","bus","bicycle"]

print("I wold like to own a "+str(d[0]))

print("I wold like to own a "+str(d[1]))

print("I wold like to own a "+str(d[2]))

#数到20

num=list(range(1,21))

for x in num:

print(x)

#4-5 1-1000000的总和

n=list(range(1,1000001))

sum(n)

min(n)

max(n)

#4-6奇数

num=list(range(1,21,2))

foryinnum:

print(y)

#4-7 3的倍数

num=list(range(3,31))

z=[]

for i in num:

if i%3==0:

z.append(i)

print(z)

[3, 6, 9, 12, 15, 18, 21, 24, 27, 30]

#4-8立方

number=list(range(1,11))

numbers=[]

for x in umber:

x=x**3

numbers.append(x)

print(numbers)

[1, 8, 27, 64, 125, 216, 343, 512, 729, 1000]

#4-9立方解析

num=[i**3 for in range(1,11)]

print(num)

[1, 8, 27, 64, 125, 216, 343, 512, 729, 1000]