1 · fluentpython/example-code@62e6cb1

This repository was archived by the owner on Dec 2, 2021. It is now read-only.

File tree

lines changed

lines changed

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`import collections`
	`2`	`+from random import choice`
`2`	`3`
`3`	`4`	`Card = collections.namedtuple('Card', ['rank', 'suit'])`
`4`	`5`
`@@ -15,3 +16,13 @@ def __len__(self):`
`15`	`16`
`16`	`17`	`def __getitem__(self, position):`
`17`	`18`	`return self._cards[position]`
	`19`	`+`
	`20`	`+if __name__ == '__main__':`
	`21`	`+beer_card = Card('7', 'diamonds')`
	`22`	`+print(beer_card)`
	`23`	`+`
	`24`	`+`
	`25`	`+deck = FrenchDeck()`
	`26`	`+print(len(deck))`
	`27`	`+print(deck[0])`
	`28`	`+print(choice(deck))`

Original file line number	Diff line number	Diff line change
`@@ -1,11 +1,13 @@`
`1`	`1`	`from math import hypot`
`2`	`2`
	`3`	`+`
`3`	`4`	`class Vector:`
`4`	`5`
`5`	`6`	`def __init__(self, x=0, y=0):`
`6`	`7`	`self.x = x`
`7`	`8`	`self.y = y`
`8`	`9`
	`10`	`+"""类似 java 的 toString 方法"""`
`9`	`11`	`def __repr__(self):`
`10`	`12`	`return 'Vector(%r, %r)' % (self.x, self.y)`
`11`	`13`
`@@ -20,5 +22,13 @@ def __add__(self, other):`
`20`	`22`	`y = self.y + other.y`
`21`	`23`	`return Vector(x, y)`
`22`	`24`
	`25`	`+`
	`26`	`+"""标量乘法？"""`
`23`	`27`	`def __mul__(self, scalar):`
`24`	`28`	`return Vector(self.x * scalar, self.y * scalar)`
	`29`	`+`
	`30`	`+`
	`31`	`+if __name__ == '__main__':`
	`32`	`+v1 = Vector(2, 4)`
	`33`	`+v2 = Vector(2, 1)`
	`34`	`+print(v1 + v2)`