Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Recent
Hot!
Most votes
Most answers
Most views
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions
0
votes
336
views
1
answer
java - Is it possible to run integration tests in parallel (Spring boot)?
Already has a test environment configured for a specific application (several dozen test classes). TestContainers are also used ... for solving this problem ? Who has any ideas ?...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
787
views
1
answer
matlab - Inverse of Upper Triangular matrix algorithm
I have the code to compute inverse of lower triangular matrix. How to compute inverse of upper triangular matrix from below code by changing it ... *L(i:j-1,i)/A(j,j); end end end...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
matlab
0
votes
329
views
1
answer
java - If my app target sdk ver is 30 how can it works in phone with lower sdk
when I try to run it in lower it shows these errors. so ... .os.DeviceIdentifiersPolicyService$DeviceIdentifiersPolicy.getSerialForPackage(DeviceIdentifiersPolicyService.java:67)...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
554
views
1
answer
is "openssl rsa" subcommand deprecated in favor of "openssl pkey"?
To show information of a RSA private key file, both openssl rsa --text < key and openssl pkey --text < key ... its subcommands, many are not user-oriented, but algorithm oriented....
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
is
0
votes
561
views
1
answer
linux mysql报错
0|rd | 0|rd | Error: connect ENOENT /tmp/mysql.sock 0|rd | at PipeConnectWrap.afterConnect [as oncomplete] (net.js:1141:16) 0 ... -compose/index.js:44:32) 0|rd | linux上mysql好像是连接不上...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
372
views
1
answer
c# - Modify Package AppxManifest properties at build time
I have a C# UWP project for which I am generating packages for 2 separate build configuration (beta and ... changing the actual Package.appxmanifest file using msbuild Targets??...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c#
0
votes
481
views
1
answer
python - Open only one Tk.Toplevel window
I bound the opening of a new window (Tk.Toplevel) on a button. However, if I press the button twice, two windows turn ... , or display a message box if I press the button twice ?...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
435
views
1
answer
ios分享后在H5页面长按识别二维码无效
关于ios分享后在H5页面长按识别二维码无效 环境 框架:angular 操作系统: ios...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
0
votes
182
views
1
answer
熟练的使用Html css JS 可以在哪找到兼职
学完Html css js 可以在哪些平台找到兼职 没有找到相关的兼职平台 有没有推荐的相关平台, 适合新手找兼职的.(猪八戒就算了)...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
熟练的使用Html
0
votes
398
views
1
answer
multithreading - Declaring Thread in a Constructor in C#
I′m currently figuring out threads and how to work with them. At the same time Im working on my understanding on ... on that property/thread.start if its only created on runtime?...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
multithreading
0
votes
232
views
1
answer
Lodash intersectionBy方法
因为我要遍历一个数组,从数组中得到重复的数据,所以需要用到intersectionBy方法; 但是这个方法,只能手动用逗号分隔数组,无法遍历传参 请问大佬们怎么解决? _.intersectionBy([{ 'x' ... category: '心累'}]} ]` 我该怎么将数组里的3个nameList数组放到intersectionBy方法的第一个参数里?...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Lodash
0
votes
529
views
1
answer
css - How to add transparent images (logo) in html website; I have tried but the white background appears in website, How to fix it?
I am a noob Just practicing adding a transparent logo to my website but the white background appears behind the ... -130171_avengers-png-logo-free-transparent-png-logos-rh.png">...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
css
0
votes
404
views
1
answer
linux - how to send udp pakets via shell
i want to control my "smart" ventilation system. after i bought and installed it, they told me it is ... someone can help enter image description here enter image description here...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
355
views
1
answer
如何筛选连续三年增长率大于10%?
select code,report_date,revenue from growth where report_date = '2017' and grow >0.1 ; 可以获得2017年,该年增长率大于10%的公司名称 select code ... >0.1 ) and (report_date = '2019' and grow >0.1 ) ;...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
0
votes
617
views
1
answer
apache kafka - Why is replica fetch bytes greater than max message bytes allowed?
Recently, we faced an issue in our Kafka cluster where we overrode the max.message.bytes value for a topic ( ... out to mitigate this problem, instead of stopping the replication?...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
apache
0
votes
1.2k
views
1
answer
thinkphp restful 返回code定义
这种返回code怎么定义好呢,用来做什么呢,感觉定义了也没什么用呀?有message知道错误信息就好了...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
thinkphp
0
votes
319
views
1
answer
关于echarts-markline symbolOffst的疑问
官方文档介绍 https://echarts.apache.org/zh... 官方实例 https://echarts.apache.org/ex... 设置了 symbolOffst:[100,100] 起始点没有偏移...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
关于echarts-markline
0
votes
203
views
1
answer
python - How to turn nested json or list inside dataframe?
I have set of repsonse from Elasticsearch using aggregation query , and the response is like 'aggregations': {'group': {' ... i would like if there;s much better method to do ?...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
456
views
1
answer
有没有朋友遇到过阿里云直播录像重复回调?
最近发现生产环境下,我写的删除直播录像的方法一直报错,错误是OSS找不到该文件,后来经过排查,我发现阿里云录像生成时会回调我的方法把该录像的存储位置返回给我,我存到数据库我的方法在根据数据库的录像文件路径去删除,但是问题是阿里云返回给 ... 我不知道生产环境下有什么会影响回调,是不是多线程阻塞会影响?请大佬们多多提建议,代码我就不贴了就是很简单的几段代码....
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
0
votes
379
views
1
answer
c - Reading string from a file by using getchar
Trying to create a C program that can execute bash commands, and I'm trying to do this by reading commands from ... 2 Desired output: cd Documents // once finished exit program...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c
0
votes
299
views
1
answer
Google Sheets Script: Search For Any Cell With Error
In a spreadsheet I use almost 2M cells, which use a lot of functions, including ArrayFormulas etc spanning thousands of rows. ... sure there's a more efficient way to go about it....
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Google
0
votes
502
views
1
answer
【库存系统】怎么用移动平均法来计算库存成本
急!现在我们库存系统项目需要实现 类似于精斗云 存货计价方法-->>移动平均法 来计算库存成本 有实现过该功能或者类似功能的开发同学 还望指点一二 主要我没搞清楚数据库这么设计 (该功能已经实现 但是效率低下 准备了解了解之后 重构 ... 据设计问题 导致了我现在的困境 移动平均法 描述 就是当入库单审核后 会根据入库商品单价改变 之后时间商品的出库成本...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
【库存系统】怎么用移动平均法来计算库存成本
0
votes
273
views
1
answer
python - Numpy doesn't provide an attribute
I've tried to import a model on Kaggle: from statsmodels.tsa.arima.model import ARIMA but it returned this error: ... .5. Could you please tell how to fix this error?...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
394
views
1
answer
关于前端的样式问题
这个东西叫什么啊,不知道从哪里开始查,怎么做呢?...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
0
votes
488
views
1
answer
小程序怎么监听@keyframes关键帧动画结束
wxml .... <view class="item-new-ripple" style="{{ani1? 'animation: ripple 2s ease-in-out infinite;' : ''}}"></view> <view class= ... 关键帧动画结束的时候判断一个值来控制变量的true/false来是否挂载animation属性...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
0
votes
286
views
1
answer
layui不能组件化,开发是不是很痛苦
layui跟jq那些,相同组件或者ui,很多页面都用到,哪一天要改动,不是很痛苦,一个一个改...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
0
votes
745
views
1
answer
mongoose 联合查询 populate
文章列表字段 classUuid 和 分类列表字段 uuid对应的,怎么可以查文章联合分类表中的 tabname 字段查出来,关于populate的使用看了很多例子然后然后都不对,以下是代码: //代码已经修改为聚合 ... , message: 'success', data, count:total }) } }); 响应的 tab 为空 和联合查询一样...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongoose
0
votes
374
views
1
answer
如果document.execCommand被正式删除,用什么可以实现复制到剪贴板功能呢?
如果document.execCommand被正式删除,用什么可以实现复制到剪贴板功能呢?...
asked
Jan 29, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Page:
« prev
1
2
3
4
5
6
7
8
9
10
11
12
...
715
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] ActionFilter .net core doesn't redirect
[2] 群发私信功能怎么制作?
[3] vue+ts+element-plus 父组件调用子组件,子组件为el-dialog。无法弹出子组件?
[4] What are the descriptons for Huawei AdsKit AdListener.onAdFailed error codes?
[5] Python转化为JS的问题
[6] 正则怎么将json格式中的long类型转换字符串?
[7] algorithmic trading - Split values separated by commas into variables in Python
[8] Koa 通过 stream 转发数据, 能否获取并带上 Response Headers?
[9] 进度条nz-progress的底色不支持自定义吗?
[10] javascript - This custom async hook is not working as expected
2.1m
questions
2.1m
answers
60
comments
57.0k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
Recent questions
...