codestep

# Lab 07

# Q1: WWPD: Linked Lists

答案：link.py

# Q2: Making Cards

很简单！

    def __init__(self, name, attack, defense):
        self.name = name
        self.attack = attack
        self.defense = defense
1
2
3
4
    def power(self, other_card):
        return self.attack - other_card.defense / 2
1
2

# Q3: Making a Player

class Player:
    def __init__(self, deck, name):
        self.deck = deck
        self.name = name
        "*** YOUR CODE HERE ***"
        self.hand = []
        for i in range(5):
            self.hand.append(deck.draw())

    def draw(self):
        assert not self.deck.is_empty(), 'Deck is empty!'
        "*** YOUR CODE HERE ***"
        self.hand.append(self.deck.draw())
    
    def play(self, card_index):
        "*** YOUR CODE HERE ***"
        return self.hand.pop(card_index)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
def link_to_list(link):
    res  = []
    while link:
        res.append(link.first)
        link = link.rest
    return res
1
2
3
4
5
6

# Q5: Cumulative Mul

def cumulative_mul(t):
    if t.is_leaf():
        pass
    else:
        for b in t.branches:
            cumulative_mul(b)
            t.label *= b.label
1
2
3
4
5
6
7

← Lab 08 →