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def sum(L): if len(L) == 1: return L[0] i = sum (len (L) // 2) if len(L) > 1: return i + i L=[2,4] print (sum(L)) when i try to run it there is a TypeError: object

当从不同的视图控制器分割时,如何将数据从一个视图控制器保存到另一个视图控制器?

Sorry the question is a bit long. Please bear with me. Basically I'm trying to write a simple count up/count down ios app using swift. I have three main view controllers. One is an "Initial View

错误类型错误:RES(0).PICIC.MAP不是ChartJS的函数

I'm trying to draw a line chart based on Rest data, but i get this error core.js:1521 ERROR TypeError: res[0].price.map is not a function at SafeSubscriber._next (app.component.ts:26)

删除查询字符串

I have a simple search form of Google Images that open in a new window. When I want to change the form parameters to Unsplash (that don't use query strings on their URL search) the form continue

使用Ajax发布表单

can anyone please help me with sending the below form using Ajax. All I want is to send it to the trolley1.php page for processing, no call backs or anything like that. Basically replicate the form

C×Excel到TXT

I'm starting to play with C# / .NET. My work background is Python. Im having difficulty solving the conversion from Excel to TXT. What i need the txt file to look like is: ROW1COLUM1;ROW1COLUM2;

UIVIEW控制器容器不显示CopyVIEW控制器

I tried to implement a left side panel, how ever when I implement, it seems that it won't show anything on aside from the container. Here is my code below: override func viewDidLoad() {

CSS:如何在WordPress上实现标头背景透明?

I want to have a background image on my site. It comes from the top of the page and is only behind the header. The problem is, my theme forces me to have a background color for the header so you can't

移动窗口对ListVIEW控件的影响:为什么在调用函数后列标题隐藏?

I have a dialog box with a listview control (lvc) in it. Because there are many editbox before lvc( 57 controls including lvc ), lvc is out of the screen. So i have to make a vertical scroll bar.

NG点击所有项目都会受到影响

I'm trying to change the scope when i click on the element but when i do that all the elements get's changed Js: $scope.absence = "Tilstede"; this.absneceChange = function(index, absence){

拖动元素并同时向窗体添加/移除组件时,向下滚动不工作

When I am dragging an element down, the form doesn't scroll down when the dragging reaches the bottom. The reason for this may be that I am manipulating the content of the form by adding an empty

Python:[WangRebug 3 ]系统找不到指定DICOM错误的路径

i was opening sample dicom files but i got this error i try edit many times buy i got the same code [WinError 3] The system cannot find the path specified: 'F:\deep\sample0002.DCM' I am using

我应该用Maven跳过测试吗?

tl;dr Should I skip tests in maven? Long version (I don't know, whether this matters.) I use Java EE eclipse, I have tests and the code in the proper maven directory. Why should I (not) skip the

从突变角度看AWS AppSyc突变

I have test app where I'm subscribing to a list of todos. But my add new todo mutation also optimistically updates the UI. The problem is it's now refreshing the entire react view and I have no idea

Bootstrap日期选择器不工作,直到我重新加载页面的角度

Bootstrap date picker is not working until i reload the page when i navigate to that page by angular router in angular 5.Please help me i think JQuery event binding is not binding because of angular

音乐之源

When i run the programm the music doen't star. I checked if the file is preloaded whitout problem . My file is .ogg whih is supported by sfml. I don't get why i have no sound when i run the program.

按钮调用PHP函数时应该

I create a html page where are showed the info about the logged user, near the info there is a button that open a form: <h1 class="personal">Il mio profilo: <button class="add_btn" onclick="

JavaScript等待Chrome XHR请求完成

Im trying to scrape some news articles on a webpage but I need to click through each page. I wrote some code to do it but the problem is I have to wait for the XHR request to finish before

使用客户凭证登录后的WebSART无效会话

First I started tomcat8 after I had moved the webgoat.war to the webapps inside its folder. then I tried logging in to the link http://localhost:8080/WebGoat/login.mvc with the user and admin

在多个单词中找到公共子串并将其删除

I'm still green in scripting and don't know if this is even possible. I have a lexicon with lemmas and their inflections, and I want to extract the inflectional paradigms. Sample file (4 tab

如何得到答案的结果并对结果进行计算

Javascript codes function suma(){ var sum1 = document.getElementById("sum1"); var sum2 = document.getElementById("sum2"); var input = document.getElementById("resultado");

颤动-如何使用定制油漆按钮?

I want to make a button using custom paint class, Is it possible?

制作OrthyStudiWork.SuffiT.OAuthe使用COM。

I have Spring project which uses org.springframework.security.oauth, spring-boot-starter-data-rest and spring-boot-starter-web. Everything works well but I want to exclude some fields from domain

谷歌API从BigQu查询表获取数据

I am trying to get data from BigQuery Table with Python. I am aware that BigQuery Connector is available and I can export table using that. However I don't want to involve the GCP (Google Cloud

增量行250复制和粘贴数据

I have 6000 data points( stock price) for script with date, I want to copy each time 500 data points in the next sheet and want to increment it by 250 rows each time the data is seleted till the row

在调用REST API时,无论使用LoBOKS@数据,方法都是未定义的

I have Spring web application in Maven with rest api. Project compiles and Tomcat server starts without problems, but when I call some rest service from browser I get error that getter method is

在网格加载后更新JQGrand复选框标签值?

I have a JqGrid with 3 columns and all 3 of them are checkbox type columns. In my first column, when check box is checked then a text 'Enabled' will be displayed adjacent to checkbox in the same

游戏引擎中如何防止作弊引擎的使用

I have been working on a game in Gamemaker Studio right now, but one thing I do not want is players being able to cheat in it using clients like Cheat Engine and other memory editors. Is there any way

摩卡描述

I am writing the below test cases using Mocha in node.js. Please find the below code : describe('Car', function() { it('can park?',function() { const car = new Car(); assert.

应用传奇

i would like to create a legend for the three lines of this function. On the plot the values of the lines shall be mentioned. At the moment it is "line 1", but i would like to see "0.0677" This is the

使用Java将内容从一个文件复制到多个文件

FileInputStream Fread = new FileInputStream("somefilename"); FileOutputStream Fwrite = null; for (int i = 1; i <= 5; i++) { String fileName = "file" + i + ".txt"; Fwrite = new

仅使用选定列跨越行和列的分位数

My dataframe: Date AAPL NFLX INTC AAPL_Ret NFLX_Ret INTC_Ret 0 2008-01-31 27.834286 3.764286 25.350000 1 2008-02-29 27.847143 3.724286 24.670000 -0.07

TypeError:运行()缺少1个需要的位置参数:

I am using Kivy. This is my code. from kivy.app import App from kivy.uix.label import Label class SimpleKivy(App): def build(self): return Label(text="Hello") if __name__=="__main__":

NPM /纱线安装包从非根Git回购

for example a repot called my-tools has two npm packages tool-A and tool-B, as directories under my-tools repo. if I want to add those two packages with npm, what url should I use? I tried things

如何在Pay.App或No.App中创建像这样的窗格?

Example in mail.app I'm working on an rss reader, and I haven't found a way to achieve this. I need to be able to sort, emphasize "unread" items, and look good.

角度JS中的分页

I am using Angular 1 and using dir-paginate control for paging. But needs to show as 10|25|50|100|All option in bottom and top of the page. How can I achieve this? Thanks <tr dir-paginate="r in

多次重复并显示两个数组

I need some help in foreach: my code: var Content = "nickname:Steven ID:01 nickname:pascal ID:02 nickname:nils ID:03"; var v = Content.Split().Where(l => l.StartsWith("nickname:")).

在UWP中删除导航缓存

In my UWP app, i constantly navigate from page1 to page 2 and again from page2 to page1 and again this navigation loop repeats on submit button in both the pages. In the application starting it's

如何使MixEdRealTooToCube中的焦点管理器忽略自定义层?

I'm trying to create an invisible boundary around my Hololens-interactable gameobject, but the boundary is hindering the raycast from my mixedRealityToolKit's FocusManager, leaving me unable to

在NodeJS中应该使用类或模块

I'm newbie on NodeJS. I'm researching about the inheritance on NodeJS and found there's an inheritance using Class (on ES6). I have some questions about the using of the Class and Module to decide

最佳位置不是轨道5

I'm working on a project in Rails 5.1.6 / ruby 2.3.1p112 (2016-04-26) [x86_64-linux-gnu] My problem is that, following step by step the documentation of the gem best_in_place I get an error. Error: I

试图重新安装MacOS,但不能看到硬盘驱动器“Macintosh HD”

When trying to reinstall a new copy of macOS Sierra by using the command+option+R while going in recovery mode , when I click on disk utility all I see is the “ OS X Base system “ , consequently I don’

if语句不适用于整数值

i have the following code: -- content of sys.argv is 2 and 10 which is assigned to the specified variables. wthreshold, cthreshold = sys.argv def Alerting(): if PatternCount < wthreshold:

FLAC采样过滤实例

Can somebody show example how to filter FLAC samples in C# with library CSCore or FlacBox (or another one, but in C#)? I mean read of all samples, some simple modification (for example +1) and writing

如何引起

Notice how if you onmousedownover the div, it turns from green to red. This is expected. But if you hold the mouse down and drag your cursor off and away from the div, then let go of your mouse,

VUEJS在选择选项组件后更改组件中的PROP值

I have 2 components, one creates an Editor using vue2-ace-editor, the other component is a select Option component. I Need to Change the theme of the Editor if I select another value in my select

Ajax停止后不隐藏模式

i need a "Please wait" modal until ajax request stop. The modal show's until ajax end. but the modal is not hide after ajax end. i put console. log in these two states. it works fine but the modal is

为什么在NodeJS导入Passport时数据不会从MangoDB中获取

I'm a beginner for NodeJS. For login functionality implement I needed to Set Up Passport to Handle the Express Authentication. Here is my index.js const express = require ('express'); const

用LADASH中的值将对象数组转换成分组对象

I’m looking for a compact lodash solution to take an array of objects and then create a new object with the keys of the objects in the array and the unique values for each key. [ { color:

哦,我的ZSH电力线主题终端颜色在iTeliJ上没有正确显示。

I am using the Powerlevel9k theme on oh-my-zsh which looks right in the terminal (Terminator and Terminal) and Visual Studio Code on Ubuntu 18.04 LTS. In IntelliJ (Community 2018.1.5) however, the

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