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811 views

1 answer

database - Data modeling : Employees and their skills

I'm building a datawarehouse model about human resources data, and can't decide myself about a fact table which will ... ? Many thanks for your advices ! Take care of yourselves...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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274 views

1 answer

Swift: Swift doc github documentation tool - unable to find correct path

I'm trying to install and use the following auto-generating documentation tool for my Swift project: https://github. ... wondered if somebody here may have tried using this tool....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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161 views

1 answer

MySQL与SQLServer性能对比

有人说，同样结构的数据，在同样的运行环境下，100万的数据量，SqlServer的性能比Mysql更好，这种说法是否正确？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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745 views

1 answer

node.js - firebase cloud functions async await error

Using async await with firebase cloud functions gives an error: 18:68 error Parsing error: Unexpected token => ? 1 problem (1 error, ... ); } catch (err) { console.log(err); } });...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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249 views

1 answer

python - Sum of matrices using np.add()

I have a list of n matrices where n = 5: [matrix([[3.62425112, 0.00953506], [0.00953506, 1.05054417]]), matrix([[4. ... don't want to fix n = 5 Can anyone please help? Thank you....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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433 views

1 answer

vue中点击当前单词只高亮当前句子里特定索引下的单词

数据结构如下 ` <div v-for="(item,index) in sentence" :key="index" class="gragh"> <span v-for="(i,index) in item.sentenceWords" :key="index"> < ... ）但是这样实现的效果所有句子的同样索引下的单词都高亮了求教如何更改...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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720 views

1 answer

requests post 提交 multipart 多个相同属性的值

不是提交body字段，类似下面这个，但是编码方式是multipart-form 补充：尝试继承MultipartEncode 重写iterfields方法，结果 ... =file_name, headers=file_headers) field.make_multipart(content_type=file_type) yield field...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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546 views

1 answer

excel - VBA nesting loops to calculate multiple employee hours

I have been working on getting a timesheet macro that will take a data dumps and make do a few things. Ultimately I am not familiar ... the value of the sum r = r + 1 Loop End Sub...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

v-for 和ref搭配使用发现$refs[‘aa’+i]不能用但是写死$refs['aa0']却好使

百思不得起解，哪位大神知道吗 html是这样的 js是这样的报错是这样的...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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679 views

1 answer

reactjs - React-Router[V6] independent child routers

Happy Christmas holidays everyone and take care of your health and the health of your family! I decided to start ... result is shown in the picture: enter image description here...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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457 views

1 answer

layui form 使用val设置值,值是从父界面来的

[原因描述] 编辑编辑按钮,获取obj.data数据, 将obj.data数据赋值给window的属性formData 在layer弹出后的iframe中获取parent的fromData,使用val函数 ... /main/resources/ee-spring-boot-1.5.8-layui-2.5.5/formComplaintList.html...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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312 views

1 answer

python - train test split is not splitting correctly

I am still a beginner in AI and deep learning but I wanted to test whether a neural network will be able to calculate the sum of two numbers ... {} = {}".format(d[0], d[1], p[0]))...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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171 views

1 answer

sql - Switch from FTP to LFTP

I have this shell command by FTP in my SQL to send files but I need to change to LFTP or something similar but I can't get ... -p xxx -P 811 xxx.xx.xx.xx /' + @Destiny + @DestFile...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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481 views

1 answer

为什么有的C++程序new之后，却不delete呢？或者说，new之后，由于需要不想delete怎么办？

数据结构初学者希望用C++，采用头插法来构建一个单链表我看好多博客的作者在新建一个结点时，使用new之后,却不delete（具体见函数:linkListHead）按我现在的理解，这样不是会造成内存泄 ... 么解决呀？ newNode->ele = i; newNode->next = L->next; L->next = newNode; } }...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

1 answer

nodejs 官网怎么了？

是发生了什么，有什么运动么？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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262 views

1 answer

electrom打包报错WARNING: The callback-based ....

报错信息：WARNING: The callback-based version of packager() is deprecated and will be removed in a future major version, please convert to the ... .查了资料没查不到啥，请问有人遇到过吗，用的electron-vue...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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173 views

1 answer

javascript - Using image tag to pass a function with 'onclick'

This piece of code should change the text in a paragraph when the image is clicked. However, the onclick function does not ... ("text").innerHTML = "You clicked the button"; }...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.7k views

1 answer

element ui tree 怎么自己去控制收缩和展开？

用户自己通过点击事件去控制，而不用默认的按钮、这是我想要做的效果，通过修改css的方式，把默认三角按钮隐藏。使用自定义按钮，配合“default-expanded-keys”这个属性，发现只能展示，不能收回，而且只在一级菜单有效。求互一下大佬，或者提供一下思路，感激不尽...

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

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477 views

1 answer

vuecli怎么配置多页某个页面不引入任何js文件?

多页结构,其中某些页面是纯静态页面,不需要任何js,但是默认会有入口js和通用js,怎么去除? chunks给个[]也没效果啊 pages: { index: { // page 的入口 entry: 'src/index/ ... 包含的块，默认情况下会包含 // 提取出来的通用 chunk 和 vendor chunk chunks: [] },...

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

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1.4k views

1 answer

CORS Missing Allow Origin on Laravel Echo Server with Socket.io and Redis

Hi I am getting Following error after adding on my view page of laravel application. I am using Windows 10 . CORS Missing Allow Origin CORS Missing Allow Origin Error Screenshot...

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

0 votes

367 views

1 answer

mongodb查询对象下的数组是否同时包含几个条件

示例代码 // 数据 [ { name: "a", arr: [{ name: 'A' },{ name: 'B' },{ name: 'C' }] }, { name: "b", arr: [{ name: 'A' },{ name ... { $and: [{ name: 'A' }, { name: 'B'}] } }` 使用 $and 修饰符搜索为空...

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

0 votes

1.5k views

1 answer

sum - Formatting aggregated duration in PowerBI

I have string that I receive from a web service which is a duration already formatted in hh:mm:ss. This successfully ... way to have this summation expressed/formatted in hh:mm:ss?...

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

0 votes

513 views

1 answer

Elemnet+vue-i18n国际化如何插入自定义json文件

使用vue-i18n的时候,又使用了element组件库,这时候要国际化的就要把自己本地的json文件和组件库的语言要合并不知道怎么合并一起使用,因为使用了element的日历组件,所以要依赖element库的国际化, 本地的json采用这种方式: ... 法吗? 看了官方的语言包他不是用的json文件,他是写的js文件,所以想不到怎么折腾这个东西了.......

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

0 votes

705 views

1 answer

import 引入外部JS模块报错，Cannot use import

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

0 votes

326 views

1 answer

Redis有什么现成命令可以找到大KEY吗？

根据文档描述（https://redis.io/topics/redis...），可以通过redis-cli提供的功能： $ redis-cli --bigkeys 去获取大KEY，但这个貌似只能在Redis的机器上执行？假如我是远程telnet到某台Redis服务，有什么命令去获取到大KEY的吗？再者，Jedis有相关的API接口吗？...

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

0 votes

844 views

1 answer

VS code中怎么输出输出日志信息到控制台

我装了DolphinDB插件后，在VS code中调试脚本。但在VSCode中print()，无法输出信息到控制台上。请问在database中有什么其他函数可以输出日志信息到控制台吗？...

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

0 votes

298 views

1 answer

sql - Classic Asp - ADO subroutine not calling correctly

I have a subroutine in my asp file, I am trying to add to a database table. When I remove the subroutine wrapper from the ... Set objConn = Nothing End If End If End Sub %> ```...

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

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1.2k views

1 answer

ethereum - Solidity constructor declaration and statements between function signature and visibility modifieres

I just came across this in a Solidity contract, I don't understand it. Specifically I don't understand how ... = _verifier; operator = _operator; denomination = _denomination; }...

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

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