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222 views

1 answer

kafka-connect pinging the broker almost continuously when using a custome authorizer and principal builder

I am running Kafka in docker using the cp-all-in-one docker-compose file provided by confluent. I have modified ... to my setup? Any help/pointer is greatly appreciated. Thanks....

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

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382 views

1 answer

python - How is it possible that my anaconda bugs out after running pytesseract?

I'm bumping into this error while my code is running the pytesseract works fine however I am not able to print out my ... out. It performs the code but does not print the value :...

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

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300 views

1 answer

VS2017不能根据调试模式的变更去切换环境变量吗

我在VS2017上Debug模式下设置了一个环境变量，如下图：当我从Debug模式切换到Test模式时，我希望环境变量的值能自动变成Test，目前好像不可行，有什么其他办法可以做到吗...

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

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106 views

1 answer

ajax与webapi通信Null字段被自动过滤

环境:前端Axios网络请求，后端Webapi返回json 问题：当我后端返回的json对象中有一个字段rTime值为null时，该字段在到达前端时被过滤掉了，致使我前端数据显示错误提问： 1 ... 00:00:00" ? "" :?moment(deviceList[idx].yTime).format(dateFormat) } 我应该怎么修改？...

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

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204 views

1 answer

python - Caught exception in on_message: [Errno 9] Bad file descriptor

I'm publishing and subscribing through paho library I'm able to connect and send & receive mqtt messages but when ... this issue appears while the message is received on my device...

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

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372 views

1 answer

arrays - How to delete subarrays but keep their contents in Javascript?

I have the following array of objects: const pages = [ { posts: { pageInfo: { hasNextPage: true }, edges: [ { id ... } ] ] How can I delete these subarrays but keep their contents?...

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

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144 views

1 answer

json数据组装

如何将这数据组装成： expensedate：5月 amout:10 20 30...

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

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235 views

1 answer

ios - class object passed in delegate method becomes <uninitialized> in Mac catalyst

object passed in delegate method becomes uninitialized in class where protocol is implemented. but same object have valid ... class ASCardEntity: NSObject { var details: Any? }...

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

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742 views

1 answer

prometheus - Collecting metrics for average time taken by flink flatmap function

I have implemented a flink flatmap function and I want to collect metrics for average time for this function which I plan ... / 1000F; this.gauge.setValue(endTime); Would it work?...

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

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282 views

1 answer

svn - File name list with javahl

How can i get the names of all files using javahl? I create ListCallback like: ListCallback listCallback = new ... the variable SVNClient. But this method doesn't work....

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

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206 views

1 answer

r - How to add text to ggplot below the graph?

I'm looking at figures from Moreira et al. (Nature, 2020) where they have graphs indicating sample size and treatments under ... gm)`,fill = `Albino or normal`)) + geom_boxplot()...

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

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261 views

1 answer

Migration from Oracle to AWS Aurora Postgresql

I involved in migration project from oracle to postgresql. After automatic conversion, couldn't convert some ... . Example: convert oracle UTL_I18N.UNESCAPE_REFERENCES to Postgres....

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

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343 views

1 answer

python - Overwriting numpy array in loop with appended elements

I have a number of numpy arrays which I would like to update. For each of them, I would like to append a copy of ... Can this be done in a way that overwrites the original arrays?...

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

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351 views

1 answer

react路由跳转问题（具体路由配置）

目前路由跳转情况点击【录入校对】跳转到 http://localhost:3001/#/exam 是一个单独的路由但是我想实现的是请问路由配置要怎么修改当前router.js配置 import { HashRouter as Router, ... > ) } 就想路由变化在这个content里面变化想了好久都没有想好请教一下应该怎么改...

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

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196 views

1 answer

es6改变数组对象key对应的值

let arr = [ { a:'13', b:'b1', d:'d1' }, { a:'13', c:'c1' } ] 怎么把数组对象中所有key为a的值除以100，变成如下 let arr = [ { a:'0.13', b:'b1', d:'d1' }, { a:'0.13', c:'c1' } ]...

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

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283 views

1 answer

python 0 assigner returns none despite the value

I have a problem in python(python 3.9 on VS Code). I'm trying to change a value in a dictionary by some conditions: ... 0. But anyway, it changes it to none. What's the problem?...

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

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586 views

1 answer

npm i 和 npm i -S有什么区别吗？

两个命令似乎都会写入dependencies里是npm i 默认等同于 npm i -S 吗？修改下，突然发现表述有一点儿歧义，准确的说 npm i 模块名和 npm i -S 模块名有什么区别？这两个都是会写入package.json里的...

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

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262 views

1 answer

javascript - Fill array with random picture from url that gives random picutres

The randomizer for width and height works, but it only gets first random photo from collection and generates 10 same ... the array with 10 different pictures using that same link....

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

0 votes

197 views

1 answer

python 0 assigner returns none despite the value

I have a problem in python(python 3.9 on VS Code). I'm trying to change a value in a dictionary by some conditions: ... 0. But anyway, it changes it to none. What's the problem?...

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

0 votes

181 views

1 answer

python - How to plot the cost / inertia values in sklearn kmeans?

Is it possible to draw kmeans cost value? I want to draw the cost value based on iteration of kmeans like below diagram Can you please refer to some relevant thread? Thank you...

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

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198 views

1 answer

js手写输入如何实现？

就是例如这种，在网页上，鼠标写字，匹配出常用的文字。我现在有个需求，就是如此，只需要匹配出常见的文字即可。最好是纯js代码实现这个功能应该如何做，实现起来复杂度如何？有没有现成的轮？...

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

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625 views

1 answer

使用vue-cli3构建项目，引入antd，进行jest测试，会报错

报错信息： /node_modules/ant-design-vue/es/button/style/index.js:1 ({"Object.<anonymous>":function(module,exports,require,__dirname, ... import {Button} from 'ant-design-vue'; 倒入antd组件...

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

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556 views

1 answer

八进制数字报错，可以写成这样，但是不让他自动转八进制吗？

只要800编译器就自动报错，其他的应该自动转成八进制了，这种写法是不行的是吗？...

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

0 votes

608 views

1 answer

python - Constructing pandas DataFrame from values in variables gives "ValueError: If using all scalar values, you must pass an index"

This may be a simple question, but I can not figure out how to do this. Lets say that I have two variables as follows ... ,'b':b})).reset_index() This gives the same error message....

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

0 votes

448 views

1 answer

php - read xls with Maatwebsite

i′m traying to read all content from xls with library maatwebsite in laravel 5.8, but always returned me this message: ... i′m traying to get body of my file. Thanks for help...

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

0 votes

405 views

1 answer

Vue 3.0 自定义loader出现错误， Cannot read Property 'parseComponent'

在Vue 3.0自定义Loader的时候，出现错误，搜索引擎能找到的解决方案都是让保持vue版本和vue-template-compiler的版本保持一致，但是vue-template-compiler实际上才更新到2.6. ... 无法保持一致 demo上传到微云了链接：https://share.weiyun.com/plWP... 密码：jv5du3...

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

0 votes

366 views

1 answer

图片切换动画，修改src会重复发请求，求解决方案

我今天看到b站的首页头部有个移动模糊的效果，就自己尝试模仿了一下最后效果 Demo 但是这个小人的眨眼几张图片的切换我是用的更改 img 的 src 实现的，由于这个切换一直用定时器循环，会一直发请求，浏览器有时也会把请求 ... 动画是替换了 img 这个元素，但是我尝试了一下没有找到解决方法请知道的大神指导一下，非常感谢代码在 Github....

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

0 votes

451 views

1 answer

java - How do I show the entire image instead of a transition?

I am trying to use KenBurns as a diasshow, and I am trying to show the entire image. If I pause the ... make a transition that instantly zooms out? Is this even possible?...

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

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