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python - Flask heroku deployment results in an application error

I am trying to deploy my Rest Api to the web using heroku. But whenever i tried it i result in an application ... 18.183" dyno= connect= service= status=503 bytes= protocol=https...

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

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507 views

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vim 中查找不以 ab 结尾的行

我用的是 /[^a][^b]$，但 [^b] 似乎没起作用：只要一行倒数第 2 个字符是 a，就没有被 vim 匹配——我的正则出了什么问题？...

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

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506 views

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vue keep-alive的组件切换时慢和卡顿

问题：当没给vue keep-alive的include没有任何数据的时候,切换route非常的顺畅,但一旦加入几个组件的名称时切换就开始卡顿，甚至移除清空include也不能恢复。有谁遇到过或者有解决方案的可以分享指导下吗?谢谢。...

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

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有没有这样的react插件

可以画多边形组织图的这种...

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

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364 views

1 answer

Problem with require while making a Ruby telegram bot

I was doing a code in the app "Atom" and when I tried to run this code require 'telegram_bot' token = 'MY_TOKEN' bot = ... I started Ruby like 3 weeks ago, so I am not an expert...

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

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596 views

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vue_element 的el-table，有可以导出表格的框架吗，要求可以合并单元格和计算总和

如图， 1.可以从el-table的数组导出表格并且按照如图部门分成几个excel（如客户一部、客户二部、客户三部、客户一部上海客户部、媒介部） 2.可以自动合并每个部门中客户名称相同的客户名称，并计算合同金额总和~~~~ 求大佬支援...

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

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python - How combine sentences based on words

I have a dataset consisting of words and tags columns. I want to add a sentence column where each word within 1 sentence ... (dataset.head()) output : i wanna make like this :...

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

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react.js如何引入cordova

在react中，非react-native，如何引入cordova,实现扫码功能...

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

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363 views

1 answer

react一直提示自定位的点击事件未定义？

定义了一个无状态组件 import React,{useState} from 'react'; import { Image } from 'antd'; import { useHistory } from 'react-router-dom'; import "./ ... 一下说是babel支持的问题需要改写配置文件不知道这个地方要怎么改？...

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

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626 views

1 answer

Debezium, Kafka connect: is there a way to send only payload and not schema?

I have an outbox postgresql table and debezium connector in kafka connect that creates kafka messages based on the ... any way to achieve this without creating custom transformer?...

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

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177 views

1 answer

element table 组件列无法自动撑开

系统用到了 element 的 table 组件，发现一个问题，假设表格有5列，有4列都比较窄，有一个“描述”内容比较长，于是我对该列设置 show-overflow-tooltip 属性，发现其他的4列都占用了很宽的位置，而该列却没有自动撑开，而是显示 tooltip 效果，该怎么实现这种自动撑开的效果呢？...

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

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386 views

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apache spark - Date format in Pyspark Dataframe

My data: [Row(ID=2887628, Date_Time='11/01/2019 05:00:00 PM'), My code: from pyspark.sql import functions as F df ... : [Row(ID=2887628, Date_Time=None), What's the problem here?...

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

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338 views

1 answer

有偿解决vue在ie下空白的问题，可私信我加联系方式

不管是ie几8-11都是空白，控制台不报错，还有别说babel-polyfill了，网上一查全是这玩意，早装了，也配置了，没用，线上，本地，都是空白...

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

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190 views

1 answer

javascript - how to put hello component under navbar? particles taking whole screen

I dont know why particles is taking the whole screen, I cant put that hello text right under the navbar. Here's code for this ... ,0.8981967787114846) 0%, rgba(0,16,92,1) 100%); }...

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

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352 views

1 answer

html背景图平铺，并且下边无限延伸

这张背景平铺并无限向下延伸...

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

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612 views

1 answer

vue :style 动态绑定style，但是同页面中只要访问接口为什么就会刷新一次？

<div v-for="count in 8" :key="count" :style="{ backgroundColor: 'rgb(' + Math.floor(Math.random() * 256) + ',' + Math.floor(Math.random() ... 没有解决方法，拜谢~（别的代码块使用tabs标签页切换一次也会更换一次颜色）...

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

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323 views

1 answer

Angular8 rxjs 过滤数据基础问题

想取出有parentProjectId的数据,line1 输出如下数据,line2 undefined . 该如何写? this.projectChildAll.subscribe((v: ProjectsChild) => ... .parentProjectId)).subscribe(v => console.log(v)) //line2...

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

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380 views

1 answer

js 如何把这种对象里的modules里的内容放进新的一个对象里

我需要将这个对象里的modules里的内容，全部提取出来，然后放进一个新的对象里，在这里先谢谢各位大哥大姐的解答了，小弟我表达问题可能比较不清晰，如果大神们因为我表达不清晰有没懂得地方请问一下我我在努力解答！ ... } console.log('rowsu',rowsu) 这样子写最终效果是我需要的效果是这13个数据都在一个对象里，没有分012这样子...

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

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CLI 应用，对于较复杂的用户定义逻辑，如何处理更优？

场景：爬取小说完整代码：https://github.com/ForkFG/Ter... fetch: async(page) => { page = page ?? args[1] if (!page) Err("fetch: Page can't be null ... 所需 PPPS 如问题沉底而无人回答，本人将甚感痛心；如能赏我星星一颗，则不胜感激...

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

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908 views

1 answer

CompletableFuture 中 thenApplyAsync 和 thenComposeAsync的区别

RT，最好可以有代码，感谢...

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

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297 views

1 answer

请求接口时时间GMT会变为UTC

如题，请求接口时时间GMT会变为UTC...

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

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450 views

1 answer

vue的hash模式的首页，可以用nginx去掉#/index吗

最近在做一个项目，想在域名www.***.com直接显示首页，并且输入www.***.com以后直接显示首页，url不会变成www.***.com/#/index之类的。...

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

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491 views

1 answer

python - I get a Syntax Error trying to print variables

I am quite new to python (to coding in general). I use Spyder 4.2.1 (Python 3.7.9 64-bit | Qt ... (cid) return coords cid = fig.canvas.mpl_connect('button_press_event', onclick)...

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

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591 views

1 answer

请问这种动画效果用CSS该怎么做？

如题，不涉及js的话觉得不好做啊上传的图片看着不怎么清晰，也就是鼠标放上去的时候有一条线围绕矩形走一圈，鼠标离开后就会退回到原点。...

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

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775 views

1 answer

请问这个波浪效果是怎样实现的呢？有哪些方法可以实现类似的效果吗？

如图：网址： http://www.clevermama.com.cn/blank23.html...

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

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614 views

1 answer

ios - How to combine Swift code(class) with Objective-C?

I made a project with Swift code which was included with CollectionView and a swift class, ... = interSectionRect.height/cellFrameInSuper.height return percentOfIntersection } }...

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

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921 views

1 answer

宿主机映射到容器内的文件夹如何删除

创建集群容器,宿主机映射路径./Cluster/server1/P1-node1到数据节点容器内部,在数据节点容器内创建数据库并存入文件,会在宿主机对应路径上生成一些文件比如./Cluster/server1/P1-agent/ ... batchJobs的创建用户改为创建容器的那个? 或者说,这个跟dolphindb没有关系,是docker这个层面的事情?...

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

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651 views

1 answer

sql server - T-sql count number of times a week on rows with date interval

If you have table like this: Name Data type UserID INT StartDate DATETIME EndDate DATETIME...

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

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