Question

words_Deque类不起作用。我正在尝试使words_Deque类可以将单词转移到Deque类中。

class Deque:
    def __init__(self):
        self.items = []

    def add_front(self, item):
        self.items.insert(0, item)

    def add_rear(self, item):
        self.items.append(item)

    def remove_front(self):
        if self.items:
            return self.items.pop(0)
        return None

    def remove_rear(self):
        if self.items:
            return self.items.pop()
        return None


class words_Deque:
    def __init__(self, words, deque):
        self.words = words
        self.deque = deque

    def transfer(self, deque):
        for word in self.words:
            print(word)
           deque.add_rear(word)

a = Deque()
words_Deque('mom', a)

words_Deque.transfer(a)

print(a.items)

预期输出：['m'，'o'，'m'] 实际结果：transfer（）缺少1个必需的位置参数：'deque'

Answer 1

您正在调用传输方法，因为它是一个类方法。但是，它是一个实例方法。因此，您必须在实例上调用它。尝试这种方式：

`
p1=(49.338202, -123.142030)
p2=(49.335271, -123.125171)
p3=(49.332503, -123.116240)
p4=(49.332447, -123.104249)
p5=(49.331949, -123.092218)
p6=(49.331996, -123.077877)
p7=(49.329556, -123.054275)
p8=(49.326069, -123.048102)
p9=(49.312711, -123.030485)
p10=(49.306328, -123.028022)
p11=(49.291653, -123.026348)



directions_results1 = gmaps.distance_matrix(p1,p2,mode="driving",units="metric",departure_time=now,traffic_model= "best_guess")
directions_results2 = gmaps.distance_matrix(p2,p3,mode="driving",units="metric",departure_time=now,traffic_model= "best_guess")
directions_results3 = gmaps.distance_matrix(p3,p4,mode="driving",units="metric",departure_time=now,traffic_model= "best_guess")
directions_results4 = gmaps.distance_matrix(p4,p5,mode="driving",units="metric",departure_time=now,traffic_model= "best_guess")
directions_results5 = gmaps.distance_matrix(p5,p6,mode="driving",units="metric",departure_time=now,traffic_model= "best_guess")
directions_results6 = gmaps.distance_matrix(p6,p7,mode="driving",units="metric",departure_time=now,traffic_model= "best_guess")
directions_results7 = gmaps.distance_matrix(p7,p8,mode="driving",units="metric",departure_time=now,traffic_model= "best_guess")
directions_results8 = gmaps.distance_matrix(p8,p9,mode="driving",units="metric",departure_time=now,traffic_model= "best_guess")
directions_results9 = gmaps.distance_matrix(p9,p10,mode="driving",units="metric",departure_time=now,traffic_model= "best_guess")
directions_results10 = gmaps.distance_matrix(p10,p11,mode="driving",units="metric",departure_time=now,traffic_model= "best_guess")

directions_resultst = gmaps.distance_matrix(p1,p11,mode="driving",units="metric",departure_time=now,traffic_model= "best_guess")



the number is in second

Output
Segment 1 Time: 149
Segment 2 Time: 37
Segment 3 Time: 63
Segment 4 Time: 49
Segment 5 Time: 49
Segment 6 Time: 96
Segment 7 Time: 35
Segment 8 Time: 141
Segment 9 Time: 134
Segment 10 Time: 134
Sum of Time required for all Segments: 887
Time required from First point to Last point: 1084
`

这将产生正确的输出

a = Deque()
b = words_Deque('mom', a)   # save your instance as b

b.transfer(a)

print(a.items)

为什么我的班级无法处理该错误

1 个答案: