I have two lists, X and Y. X = [1,2,3] and Y = ['A','B','C'] 我想从列表A中获取所有的两个组合，并将其放置在第二个列表中的任何位置。 从原始的第二个列表中，我想将所有元素一个接一个地放置在列表X中的任何位置。 结果应如下所示： # Original lists: (X = [1,2,3], Y = ['A','B','C']) [ ([1, 'A'], ['B', 'C', 2, 3]), # 2,3 went to list (Y) and...

这不是关于我的代码的问题，只是在寻找指导。 我的任务是创建一个成绩计算器，该计算器可以从文件中读取数据，提取文件中学生的姓名和成绩，获取他们的平均成绩和其他与成绩相关的计算结果，然后全部打印出来。我将显示要读取的文件。 我是一名学生，我们正在研究链表，节点和OOP。我正在寻找一种制作OOP的简单方法，该方法可以从学生列表文件的每一行中获取所需的信息并进行计算。我不确定应该使用哪种数据结构来完成这些任务。 这是我的说明表和学生列表：谢谢！ 清单档案： Dakota McDermott,92,65,89,86,...

我有一个命名向量的列表，想在10个向量的名称中找到一个特定的模式。 （下面是列表的示例） 我可以为其中一个向量执行此操作 grep(pattern = "Mog", x=names(by.factor$`10`)) 但是我不能将其应用于列表 我试过了 lapply(by.factor, grep, pattern= "Mog", x = names(by.facotr)) But this doesn't work. I would like to get back the values for the...

我有一个电子商务应用程序，我想让用户在发布产品时可以添加自定义选项。我已构建了选项表单，并且具有为其他“选项”添加新的TextFormField的逻辑，但是我无法显示“添加/删除”按钮，以便他们可以添加新字段。 这是TextFieldForm去的代码： ListTile( title: Container( width: 250.0, child: TextField( style: TextSt...

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As you can see from the image I have a list of colors, I would like to be able to also give the possibility to delete a color from the array. I tried to add a list and then call the onDelete call on ForEach, but it's not working well it gives me problems. ...

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I run a code that computes all combinations of the characters -, x and o in lists of 9 elements. From the list I want to remove all elements that have more than 5 occurrences of o. 我不明白为什么以下代码无法正常工作： from itertools import product combos = list(product(['-...

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I wrote a program with which you can manage the employees of a company. I save all my objects that I create in my list self .__ staffs = []. Yes, I know that this is a private attribute and so do everyone else in my program, but that was the default. If I ...

json数据来自使用ccxt的远程服务器。 如何获得“ NEO”的当前余额？ def check_balance(symbol): balance = exchange.fetch_balance() sonuc = balance['info']['balances'] print(type(sonuc)) return check_balance 类型=清单 [{'asset': 'BTC', 'free': '0.00000000', 'locked': '...

我正在尝试完成一个包含3种生命形式类的生命形式模拟，并具有各自的运动和定位。该代码包含一个冲突检测，如果它们彼此之间距离太近，它将删除obj。当我尝试运行代码时，我不断收到xvalues.append（pasciro [j] .x）行的错误消息，指出列表索引超出范围。感谢您提供一些解决此问题的帮助。 下面的代码我包含了其中一个类： class flyers: typ = 0 color = "y" def __init__(self): self.x = random.randint(0,200)...

我有两个不同的清单，这是我在抓取后得到的结果， 我下面有这两个数据集 names = [ 'Forbes', 'Forbes', 'Forbes', 'Forbes', 'Forbes', 'Forbes', 'MobilePunch', 'MobilePunch', 'MobilePunch','MobilePunch', 'MobilePunch', 'MobilePunch','ARISE', 'ARISEtv', 'ARISEtv','ARISEtv','AR...

我正在尝试从具有列名和表数据的列表中获取在列轴上具有Multiindex的数据框： table = [[['Información general'], [ 0 1 0 Identificador SUB-JA-2017-60716 1 Tipo de s...

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我有一个来自Spotify API请求的R中的4个项目的列表： > lijstwijk [[1]] Response [https://api.spotify.com/v1/search?q=track%3APompeii%20artist%3ABastille&type=track&limit=1] Date: 2020-06-16 20:14 Status: 200 Content-Type: application/json; charset=utf-8 Size: 2.78 kB {...

给定2个列表，我必须在第一个列表中找到顺序，以使第二个列表中的相应元素幅度较小。 So for example: If list 1 has elements [10, 40, 30] and list 2 has elements [20,5,50] Here only 40 in list 1 is greater than corresponding 5 in list 2. A correct order in list 1 to maximize such order would be [30,4...

这是我的代码： #cart is a list, easy to append cart=[ ' Items', " " * 14, "Quantity", " " * 8, "Unit Price", " " * 8, "Price"] total_pricee = 0 pricee = 0 count=1 from datetime import datetime now = datetime.now() dt_string = now.strf...