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python - numpy 3d array -- flatten --> 1d array --> select one element in 1d --> how to know the index of the element in 3d?

numpy 3d array -- flatten --> 1d array --> select one element in 1d array --> how to know the index of the element in 3d? (?, ?, ?) For ... , 5]) -> [[?,?,?], [?,?,?], [?,?,?]....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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dart - Change the parent widget height without causing the child to rebuild Flutter

I have a parent widget which is a Container() and a child widget which is a FutureBuilder... In my app I need to change the ... { return Container(); } }); } } What can I do?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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270 views

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Android Sudio find which Activity/Fragment is on foreground

I am working on a new app and it is a bit difficult to find which Activity/Fragment corresponds to the current screen ... . I am looking for a similar feature in Android Studio....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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365 views

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python - How do I upload a CSV with French accents & emojis to Google Sheets?

I'd like to upload a CSV to Google Sheets so that I can download it as an XLSX. I'm currently using the ... opening the file with Chrome if that matters, and coding with vscode....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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C# MVC System.Web.Mvc.WebViewPage<TModel>.Model.get returned null

I am encountering a strange issue. I have a dropdown list for countries in a form that is populated from the Controller. ... joins to itself, I was not the one who created it....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asp.net core - AutoMapper not detecting profiles in external assemblies

I am using ASP.Net core with latest Automapper. This is related to this and this. I think I ... Assembly.GetExecutingAssembly().GetReferencedAssemblies() What may be the problem?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Why is vectorization not beneficial in this for loop?

I am trying to vectorize this for loop. After using the Rpass flag, I am getting the following remark for it: ... is not benificial" mean the array indexing is not proper?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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泛型类和非泛型类但有泛型方法有什么区别

泛型类和非泛型类但有泛型方法有什么区别...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Need help translating VB code which splits an array by '~' and then assigns these strings to variables

This is the VB code: static List<card> ParseCardList(string FileName, string Delimiter, bool IsQualified) { var CardList = ... why I am trying to convert this in the first place....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Chart.js scatter chart plot data joins start and finish points together

I'm currently trying to write a short program that captures data on mouse movements, scrolling and keyboard ... scroll) addDataScatter(keysChart,newData.decTime, newData.keys) })...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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285 views

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attr - Angular 2+ Can you add/remove a CSS class based on html data property?

First I would like to add a little more context to the question. Right now I have the following: A list item ... vice versa on the mouseout event. Here is a working StackBlitz...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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h5项目换了iscroll的版本后，为什么提示“IScroll is not defined”

上传完压缩包后，把js文件中iscroll-5.1.3.min改成了iscroll-5.2.0...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - not able to launch dash (jupyter-notebook-python)

C:UsersadminAnaconda3libsite-packagessklearnutilsvalidation.py:595: DataConversionWarning: Data with input dtype object was converted to float64 ... ', or Ctrl-D.", stacklevel=1)...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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如何解决IOS端两个内联块元素无法上下对齐的问题？

需求是一个简单的搜索框：包括一个输入框和按钮，在PC端宽度较短且固定，在移动端独占一行 PC端和安卓移动端都没有问题，但是在IOS端上下没有对齐，相差1px IOS端：安卓端： Html代码： < ... 部内边距为1px： $('#nav-search-submit').css('padding-bottom','1px') 请问有没有更好的解决方案？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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213 views

1 answer

Taskbar options can not be found so I can finish codeing

Hi im trying to run vscode but no home button or check at bottom to compile added python and platformiod what am i doing wrong thanks...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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385 views

1 answer

这种元素模块交界的地方的border-radius效果怎么做？

点击哪个临近的两个元素就会有圆角这种效果要用js控制吗...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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415 views

1 answer

perl - perlcritic message: map used in void context

There is a Perl code line below where I get the message from perlcritic: map { $total_ids += scalar @{$ids->{$_}} } @brands; ... ->{$_}} } @brands;' Can anyone help me to fix it?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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442 views

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js动态添加 input type="file" 后，每次都只上传第一个 file 中的文件

<div class="wrap"> <div> <input type="file" :id="index" @change="toUpload"/> </div> </div> data() { return { index: 0 }; }, 每新增一个input ，this.index++...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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394 views

1 answer

常听人说 OLTP、OLAP 很重要,但日常工作为何都没碰过?

常听前辈说 OLTP OLAP,但是我工作都没碰过,猜测是我太嫩的原因 (T_T) 我爬了文章,发现定义我看得懂也能理解,但实际应用就一脸蒙圈 (像极了高中考试T_T) 请问我工作使用 SQL-Server 跟 Oracle 要应用OLTP ... 个会搭配使用，储存资料的时候先存到 OLTP 中确保数据一致性，要做分析的时候再使用 OLAP 做重要报表 ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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194 views

1 answer

js算法问题烧脑求厉害的小哥看看

let powerData=[ { id: 'A', label: '终端管理', children: [ {label: '设备套餐',router:'devicePackage',id:'devicePackage', ... '/gatewayLog/findGatewayLog',text:"查询网关日志"} ] } ] } ]...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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218 views

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Custon SVG icon on ArcGIS map widget

I have to add a custon SVG file instead of the navigation icon from ArcGIS in the 'locate' widget ('esri-icon- ... -repeat; background-size: 17px 17px; background-color: #ffffff; }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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517 views

1 answer

使用valgrind跑程序时出现coredump，怎么调试？

在使用valgrind检测程序内存时，发现崩溃了启动的方式如下： valgrind --leak-check=full --tool=memcheck setsid valgrind --tool=memcheck --error-limit=no bin/ ... ？还有一个是valgrind生成的core文件，可以直接使用运行的程序名称进行gdb吗？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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284 views

1 answer

Vue路由无法跳转

加上判断后，出现错误，路由无法跳转。就是第二个if那里。报错详情：...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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306 views

1 answer

html - FRAME src attribute: Do I have to URI-encode the value?

Are there any requirements / specs regarding the src attribute of a FRAME, especially if I have to URI-encode (percentage ... stackoverflow.com?param=??ü"/> </FRAMESET> </html>...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bignum - Tupper's Formula in Prolog

Prolog is said to be very bad for numerics. Can we prove the contrary and like plot the following function? ... helpful. But unfortunately the formula looks like a float formula....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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164 views

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如何解决跨域？

使用的qiankun，访问子应用的路由时提示跨域错误我已经在服务端配置了白名单，但是option请求还是过不去，导致现在拿不到数据？有大佬知道这是怎么回事么，request header如下，可以看到 Access-Control-Allow-Origin配置项是没问题的...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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192 views

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如何从文本中提取日期？

比如说有一段文本：“下周三去游泳”，如何识别出下周三，并得出具体日期呢？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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141 views

1 answer

Linked List - remove duplicates algorithm in C#/Java

I am studying Data Structures and Algorithms in C#/Java. After encountering a solution to the problem of Linked List ... reference, but I cannot see how it is actually modified....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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