Question

我正在根据用户的输入创建类的 x 实例。请快速浏览一下我的代码：

class Cut:
    def __init__(self, length, qty):
        self.length = length
        self.qty = qty

qty_cut_lengths = input("How many cutting lengths are there?")
cut_number = 1

while cut_number <= qty_cut_lengths:
    self.length = input("What is the length of " + cut_number + "?")
    self.qty = input("How many pieces will be needed?")
    cut_number += 1

例如如果用户输入 10 ，我希望代码创建10个Cut类实例，每个实例具有相应的长度和数量。因此，对于第一个裁切而言，假设“客户”需要5块30英寸的材料。我想要cut1.length = 30，cut1.qty =5。那么，假设他们需要20块15英寸的材料。 cut2.length = 15，cut2.qty =20。依此类推...我想不出一种实现此目标的好方法。感谢您的提前帮助！

Answer 1

输入长度/数量后，创建一个新的剪切

cut = new Cut(length, quantity)

并将它们存储在列表中

cuts = []
while (cut_number <= qty_cut_lengths):
    ... create cut as above...
    cuts.append(cut)

Answer 2

离解决方案不远。您只需要创建实例并进行一些转换：

class Cut:
    def __init__(self, length, qty):
        self.length = length
        self.qty = qty

qty_cut_lengths = input("How many cutting lengths are there?")
cuts=[]

for cut_number in range(int(qty_cut_lengths)):
    length = input("What is the length of cut n°" +str(cut_number+1)+"?")
    qty = input("How many pieces will be needed?")
    cuts.append(Cut(int(length),int(qty))) # instance creation and storage

使用while循环创建类的x个实例-python

2 个答案: