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354 views

1 answer

vue里面当我使用window.open他会渲染两个出来?

...

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

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344 views

1 answer

如何通俗易懂，优雅地向非IT人员介绍IT人员的工作是做什么的？

最近要做一个培训类的分享，主题是关于非IT人员的IT基础。背景是我的工作中会接触到毫无计算机IT背景的业务方，为了让他们更好地了解我们IT人员的工作是做什么的，促进双方更好地沟通，同时顺带做一下计算机相关知识的普及（要非常通俗易懂，不然他们根本没兴趣也听不懂）。大家平时有没有关注过一些文章，在这方面写的比较通俗易懂的，可以给我一些思路。感谢大家。...

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

0 votes

272 views

1 answer

node.js - AWS Cloudfront sending base64 data of video instead of Streaming

Im using Node.js to stream Cloudfront Videos from S3 bucket , the Video which I manually upload to S3 is streaming via ... Metadata to video/mp4 but no result ,please help .......

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

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321 views

1 answer

[Vue warn]: Unknown custom element: <a-comment>...?

使用ant design pro of vue的时候引入了<a-comment></a-comment>这个组件，但发现报错说是没有注册需要提供name import router from './router' import store from './store/ ... 按照网上的方法在main.js注册一下再使用发现还是报这个错, 具体也不知道错哪了...

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

0 votes

1.0k views

1 answer

Flutter integration test - bad state, no element

In my integration tests I have to keep doing: await tester.pumpAndSettle(const Duration(seconds: [some duration])); to ... widgets to not appear on the screen until some delay?...

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

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310 views

1 answer

请问JS有没有办法控制Tab页的加载状态

请问js是否可以控制浏览器tab页的加载状态呢？我有一个单页面应用，想在路由切换的时候在浏览器tab页显示加载状态目前已知的一种方法是使用iframe，但是这会浪费用户的网络流量，有没有更好的方法？...

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

0 votes

107 views

1 answer

mysql -uuser1 -p -h127.0.0.1 -- host地址不是我指定的地址？

mysql -uuser1 -p -h127.0.0.1 登录mysql的时候，返回的结果是 ERROR 1045 (28000): Access denied for user 'user1'@'gateway' (using password: YES) 为什么返回的结果是 'user1'@'gateway' ？...

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

0 votes

574 views

1 answer

selenium模拟登录淘宝这招是行不通的吗？

url = "https://sycm.taobao.com/custom/login.htm?_target=http://sycm.taobao.com/portal/home.htm" options = webdriver.ChromeOptions() # 此步骤很重 ... 宝总是被检测到，是不是用selenium模拟登录淘宝这招是行不通的是吗？...

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

0 votes

317 views

1 answer

请问怎么用PDF.js 每一页加载一条地址？

现在后端返回一个数组内有二十条地址，用pdf.js加载的时候，滚动条往下滑动，一页对应一个地址，请问怎么实现...

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

0 votes

498 views

1 answer

python - Sympy nonlinsolve does not return an explicit solution

This is my first attempt at symbolic solving in Python and I would need some help. My aim is to get explicit solutions for my variables ... , Lb, Lf, Sf, c1, c2, c1b, c2b])) SbSol...

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

0 votes

281 views

1 answer

java - mvnDebug mode is not opening the debug mode

I have a maven project which I m trying to execute using mvnDebug clean install command but it is getting stuck at ... problem, failed to connect to remote VM.Connection refused"....

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

0 votes

270 views

1 answer

mysql where in的最大条数是多少？

背景 mysql表需要批量更新60w数据，表内数据大概2000w sql UPDATE table1 SET field_1 = 5 WHERE id = 19823049; 两种方式第一种每行一条 UPDATE table1 SET field_1 = 5 ... 键id和in其他的普通字段（特指带索引但不是主键的字段），底层处理上有差别吗？...

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

0 votes

438 views

1 answer

amazon web services - Launch EC2 instance on S3 upload + process file

I want to automatically launch an EC2 instance whenever a user uploads data to my datadump-input S3 bucket. The EC2 ... . I was thinking Lambda but am open to other services....

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

0 votes

618 views

1 answer

js 有没有类似ps那样自由面板组合的插件，可以自由缩放模块大小，并且单独拿出来某个模块

js 有没有类似ps那样自由面板组合的插件，可以自由缩放模块大小，并且单独拿出来某个模块拖动到想要的位置和自由缩放...

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

0 votes

485 views

1 answer

java - Why does jdeps issue a warning about a split package?

I have a simple non-modular jar file main.jar that depends on libA.jar and libB.jar. These three jar files all reside in ... . Any hints as to why jdeps does see a problem here ?...

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

0 votes

378 views

1 answer

为什么这种目录结构会编译不过？

请问是哪里出问题了？...

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

0 votes

1.2k views

1 answer

minikube 安装k8s集群，一直提示连接网址https://gcr.io/v2/失败，但是我配置了aliyun的镜像

如图阿里云的连接地址: https://yq.aliyun.com/articles/221687?spm=a2c4e.11153940.0.0.12424ceck7ZCx5&p=7#comments 命令： ... 7.3.iso --registry-mirror=https://9cpn8tt6.mirror.aliyuncs.com...

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

0 votes

136 views

1 answer

mysql多对多查询sql怎么写？

学生表、课程表、中间表，中间表存储学生所选的课程id和学生id，默认情况下查询显示所有学生基本信息不能重复，然后通过筛课程来找学生有哪些，这些多对多查询怎么优化呢？求助大佬们...

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

0 votes

1.1k views

1 answer

magento2 - venia storefront setup error "/usr/bin/env: ‘node ’: No such file or directory" in Magento 2

I am trying to setup pwa - venia store front for magento 2. I have installed default magento 2.4.1 and clonned ... shows proper version when we use --version attribute on ubuntu....

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

0 votes

490 views

1 answer

pandas - Python DataFrame - create index from row values

I am trying to alter a python / pandas dataframe: Current structure of DataFrame: QTY EUR timestamp 1610116649 1610116649 transactions 12 30...

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

0 votes

392 views

1 answer

每一次push对象中的数组覆盖问题

var arr = [ {name:'张三', age:'22', child: []}, {name:'张四', age:'23', child: []}, {name:'张五', age:'24', child: []} ] 将 ... child:["第一次push"] } 第二次: { name:"张五", child:["第二次push"] }...

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

0 votes

1.4k views

1 answer

golang 怎么获取 GC 的消耗时间？

还有 GC 的次数，这些用runtime能得到么...

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

0 votes

675 views

1 answer

merge - New observations are added after merging - Stata

I am new to Stata and hope that one of you can help me with this problem! I have three data sets that I ... Number of books when ten sl_rp002_ byte %10.0g yesno Ever been married...

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

0 votes

1.3k views

1 answer

vscode typescript tasks.json 能不能用npm命令执行？

请问如下配置，能不能直接用 npm run xxx 配置执行？不用每次按 ctrl + shift + b tasks.json { "version": "2.0.0", "tasks": [ { "type": " ... " ], "group": "build", "label": "tsc: 监视 - tsconfig.json" } ] }...

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

0 votes

533 views

1 answer

网站要做ssr，node 端如何动态设置 axios 的cookie？

A文件导出 var $axios = axios.create({}); export default $axios B文件接收后如何给axios设置cookie？...

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

0 votes

498 views

1 answer

请问这种Mybatis下mapper.xml的对齐方式有插件么？

就这种column property jdbcType的对齐方式，只针对xml就好...

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

0 votes

379 views

1 answer

Springboot使用注解实现Aop不生效

想着用redis来实现一个文章阅读数的增加功能，参考网上使用aop来增加阅读数，但是怎么都不能进入通知切入点注解 @Target({ElementType.PARAMETER,ElementType.METHOD}) @Retention( ... ｝不论我是放在controller还是放在service，都没有进到这个aspect里面去，求大哥们解答...

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

0 votes

439 views

1 answer

小程序手动输入文字识别#话题#

目前已经实现了一段文字中添加话题，但是比较简单，添加话题是通过按钮跳转到另一个页面然后点击话题列表选择话题的发送给后端的数据里面有两个字段，一个是全部文字包括#话题#的字符串，另一个是话题名称的数组后端返回的时候也是这样， ... 话题名的#闭合呢，或者有什么其他办法呢？输入框的文字大致这样："内容内容#话题1# 内容#话题2# #话题3# 内容"...

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

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