python 从入门到实践第四章习题 (高级编程技术 week2-2）

矫情吗；* 2022-05-29 01:52 116阅读 0赞

# 高级编程技术（week2-2） #

## 4-1 披萨 ##

第一题就是一个比较简单的有关列表的使用的题目。

pizza_names = ["pizza_one", "pizza_two","pizza_three"]
    for pizza in pizza_names:
        print("I like ", pizza)
    
    print("I really love pizza!")

## 4-3 ##

这里要考虑到，range(a,b) 函数中的区间是左闭右开区间，打印的数列要包含20的话，区间的右边需要写21。

for i in range(1,21):
        print(i)

## 4-5 ##

l = range(1,1000001)
    print("min(l) = ", min(l))
    print("max(l) = ", max(l))
    print("sum(l) = ", sum(l))

## 4-6 ##

odd_numbers = range(1,21,2)
    for i in odd_numbers:
        print(i)

## 4-7 ##

three_numbers = range(3, 30, 3)
    for i in three_numbers:
        print(i)

## 4-8 ##

l = [x ** 3 for x in range(1,11)]
    for i in l:
        print(i)

## 4-9 立方解析 ##

l = [x**3 for x in range(1,11)]

## 4-10 切片 ##

l = ["pizza_one", "pizza_two", "pizza_three", "pizza_four", "pizza_five", "pizza_six"]
    print("The first three items in the lists are:")
    for i in l[:3]:
        print(i)
    print("Three items from the middle of the list are:")
    for i in l[2:5]:
        print(i
        )
    print("The last three items in the list are: ")
    for i in l[-3:]:
        print(i)

## 4-13 ##

tuple = ("food1", "food2", "food3", "food4", "food5")
    for i in tuple:
        print(i)
    tuple[2] = "food10"

当运行这样的代码时，会产生这样的错误消息。  
![5aa9102d38815.png][]

## 代码格式 ##

在vscode中的python插件，有很多关于python lint的工具可供选择，暂时我在vscode上配置的工具为pylint。

[5aa9102d38815.png]: https://i.loli.net/2018/03/14/5aa9102d38815.png