Recent questions in Technique[技术]

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c++20 - Using c++ 20 Concept to check if a function returns a const value

I'm trying to use concepts in order to be able to detect if a given type's begin function returns an ... How do I correctly detect that the container contains const values?...

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

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1.2k views

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vue-element ui 表格嵌套表格父子勾选 toggleRowSelection()方法无法生效，

部分代码 <el-table style="margin:10px?0;border:1px?solid?#eee;width:100%;" ref="refTable" v-loading="listLoading" :data="tableData" :max-height=" ... 不知道是哪里的问题，烦劳有经验的人帮忙解答下，在此谢过了！！！...

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

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481 views

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space issue of TOC in Jekyll by Markdown

I tried to add a table of contents (TOC) to my Github pages by following: post.md: * TOC {:toc} main. ... other attributes does markdown-toc have? Any advices will be appreciated!...

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

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689 views

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配置搭建 Gitlab ，首次登陆，没有让重置密码，通过网上重置方式，提示如下

进入gitlab页面，直接让我登录，后面我手动注册了一个，发现id是3，不知道root默认的密码是多少，现在登录的用户，没有图标，想着重置root密码，发现提示命令有误...

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

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380 views

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Nuxt中函数调用弹窗失败。

各位大佬，我想通过函数调用的方式让弹窗显示，但是目前控制栏报错：我不知道这个到底是我在Nuxt里面使用错误的问题还是别的原因引起的，弹窗调用无效，一点击按钮就报错。以下是我的项目的一个Demo，可以复现出错误：https://codesandbox.io/s/fast......

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

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523 views

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address sanitizer - Where and how can I get a ELF 32-bit MSB shared object, ARM aarch64 libasan.so?

When I run my ELF 32-bit MSB shared object exec on an arrch64 architecture, I get the wrong ELF class:ELFCLASS64 for ... a ELF 32-bit MSB shared object, ARM aarch64 libasan.so?...

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

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C++里为什么空指针也能调用函数成员？

#include <iostream> using namespace std; class A{ public: void f(){ cout<<this<<endl; } }; int main() { A *a = nullptr; a->f(); return 0; ... 0 为什么 a->f() 这种空指针调用成员函数是允许的？它的机制是什么？...

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

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743 views

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dns - How do I add a subdomain in Freenom

I am trying to add a subdomain to my Minecraft server that displays a map of the world. My server is up and running ... Error occured: Invalid value in dnsrecord. How do I do this?...

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

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389 views

1 answer

How to view all differences between two git commits within Intellij?

I looked at a few results for how to do the task in the title. One of the most popular is an SOF ... those instructions. However there is no "compare versions" option afaict:...

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

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506 views

1 answer

查询数据库时，多次查询比较好还是用sql一次联查比较好？

有一下场景，有两个表，a表和b表是多对多表，他们有某种关联关系(比如a.id在b表有aid这个字段与之对应)，需要将他们的字段通过这种关联关系链接起来并返回到前端展示那我们这里肯定有两种实现方式：一种是直接使用sql select * ... 和b表数据量相关，a表和b表数据量差别很多可能使用第二种好点，但网上说还有缓存的关系，但不太了解，望大佬解答 ...

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

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206 views

1 answer

InfoBubble reposition according to viewport in Here Maps 3.1 Version

the infobubbles re-position in the viewport so they stay on the screen (e.g. if it's on the top of the viewport, ... re-positions to the bottom so it doesn't appear off screen)...

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

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246 views

1 answer

reactjs - How to add environment variables within the meta tags inside public/index.html in creat-react-app?

%ENV_VARIABLES% I tried this and restarted create-react-app with npm start, its not working for me, any help would be appreciated. Thank You...

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

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112 views

1 answer

请帮我完善这个程序？

from selenium import webdriver import time import win32clipboard import win32api import win32con from selenium.webdriver.common.action_chains ... ') time.sleep(1) print('over')...

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

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1.0k views

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centos7 - Redhat stopped CentOS 7 updates, Do we need to upgrade to CentOS 8 Stream version?

We are using 'CentOS Linux release 7.9.2009 (Core)' for production servers. But it seems that Redhat ... .org/About/Product, https://en.wikipedia.org/wiki/CentOS#CentOS_version_7...

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

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489 views

1 answer

Android Module本身libs下有aar文件，把Module连同libs下的aar一起打包成aar的问题？

需求就是我们自己写个SDK供别的开发者集成新建了个工程然后新建了Module，Module中的libs引用了第三方的aar文件，这个aar文件的代码没有混淆过，然后代码都写的差不多了最后把这个module执行打aar包到新的项 ... 中libs下的aar代码根本找不到，说明就没有打进aar包中这种情况是怎么解决呢？求解！项目结构图：...

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

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174 views

1 answer

python - PayPal Subscription on webapp

I am coding a web application and I need to make some subscriptions plan using PayPal and Stripe but I have some ... whole system works since I've never coded something like this...

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

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314 views

1 answer

python - How can we use Pre-trained model to predict only one new_test_data on any model

Problem Statement : Data consists of 10000 rows and 3 columns as "tweet","tweet_tokens","sentiment" This data ... always have to make new_test_data shape as of trained_data_set ??...

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

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Typescript allow/return type and its extended childrens

export interface IArrayToTreeInput {} export function convertArrayToTree(input: IArrayToTreeInput[]) { const roots: ... extended type without either of the above 2...

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

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457 views

1 answer

udp客户端之间通信

udp客户端之间通信的话，是将数据发到服务端，由服务端转发，还是直接发送到对方呢...

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

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421 views

1 answer

Gevent的猴子补丁会对python代码的服务器造成影响吗？

我使用gevent来单线程优化redis，因为猴子补丁是全局的，所以我想知道我引入了猴子补丁之后会对服务器中其他人的代码尤其是多线程造成什么样的影响呢？...

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

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269 views

1 answer

How to get value for selected place in particular area when draw polyline or polygon through Javascript ArcGIS Api from TileLayer?

Actually I am using ArcGIS API for JavaScript 4.7 and i have a custom internal layer . I want to ... (this); }; var drawPolygonButton = document.getElementById("polygonButton&quot...

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

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469 views

1 answer

mongodb 4.2.6 编译后生成的可执行文件为什么这么大

编译后生成的文件 -rwxr-xr-x. 1 root root 766M 8月 3 16:37 mongo -rwxr-xr-x. 1 root root 1.9G 8月 3 16:44 mongod -rwxr ... 16:44 mongos -rwxr-xr-x. 1 root root 7.6K 8月 3 16:52 install_compass...

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

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584 views

1 answer

How to add a parameter in every http request in docker ZAP OWASP zap-full-scan

I am using this command to do full scan on https://www.example.com. docker run -v $(pwd):/zap/wrk/:rw ... responseReceived(msg, initiator, helper) { //Nothing to do here }...

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

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226 views

1 answer

I want to change ruby version by rbenv, but I can't reset my 'which ruby'

I want to change ruby version by rbenv, but I can't reset my 'which ruby'. Do anyone know how to change? I run 'which ruby' ... run 'rbenv' → 2.6.5 OS : macOS Big Sur shell : zsh...

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

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1.6k views

1 answer

echarts 报错Cannot read property 'getDisplayList' of null

拖动滑块时，加载更多数据，就会报这个错误，有大佬知道什么原因吗？...

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

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150 views

1 answer

Removing ndarray from list in python

Very strange issue, giving you details for you to reproduce. I have an ndarray x = [[ 58.0376135 ], [4739.44845915]] ... examples it does work. How can I make it work here too?...

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

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126 views

1 answer

关于Token失效的问题

本地部署的时候完全可以正常登录，但是部署上云服务器的时候，就出现了问题：这个permisson是做权限拦截的：显示这个token为undefined，那么应该是后台的错误了，但是后台服务器上的代码和本地的代码是一模一样的，本地部署的 ... 成Token方法每次前台来需要权限的路径全部要拦截如前台访问需要权限的路径时要将token带上去控制台反馈：...

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

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312 views

1 answer

请问下np报错，如何解决

C:UsersAdministrator>npm install vue-slider-component -save npm WARN [email protected] requires a peer of ... packages are looking for funding run npm fund for details...

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

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