Python-41~45

---41---

Question：

>Write a program which can map() to make a list whose elements are square of elements in [1,2,3,4,5,6,7,8,9,10].

Hints:

>Use map() to generate a list.Use lambda to define anonymous functions.

Solution:

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---42---

Question:

>Write a program which can map() and filter() to make a list whose elements are square of even number in [1,2,3,4,5,6,7,8,9,10].

Hints:

>Use map() to generate a list.Use filter() to filter elements of a list.Use lambda to define anonymous functions.

Solution:

解法一

解法二

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---43---

Question：

>Write a program which can filter() to make a list whose elements are even number between 1 and 20 (both included).

Hints:

>Use filter() to filter elements of a list.Use lambda to define anonymous functions.

Solution:

解法一

解法二

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---44---

Question：

>Write a program which can map() to make a list whose elements are square of numbers between 1 and 20 (both included).

Hints：

>Use map() to generate a list. Use lambda to define anonymous functions.

Solution：

解法一

解法二

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---45---

Question：

>Define a class named American which has a static method called printNationality.

Hints：

>Use @staticmethod decorator to defineclass static method.

Solution：

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Python filter() 函数 | 菜鸟教程

Python filter() 函数 | 菜鸟教程