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
610
views
1
answer
html - Vanilla JavaScript toggle function moves my h2 tag up
I have a small problem which I can't find the solution for and it's making me frustrated. I am including a link to my CodePen ... > </main> <script src="app.js"></script> </body>...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
html
0
votes
910
views
1
answer
android paho mqtt 同一界面多次进入,仍然会请求上次进入界面的主题?
假设首次进入设备01 的设置界面 读取了实时的设置,返回列表再进入设备02 的设置,sdk先发一次 02 的主题,再发一次01 的主题,最终显示的数据是 01 的数据。试过在 onDestroy 中取消订阅、断开连接,都不太合适。,...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
android
0
votes
881
views
1
answer
VS code snippet transfrom
The filename is currently filename.dto.ts I'm trying to transform filename.dto.ts to FilenameInput or FilenameOutput However ... export class ${TM_FILENAME_BASE/(.dto)//}Output {}`...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
VS
0
votes
1.1k
views
1
answer
visual studio - Can't go to implementations for the interface, already "enabled navigation to decompiled sources"
When I click go to implementations for an interface's method, it can not find any implementations enter image description here...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
visual
0
votes
1.2k
views
1
answer
python - why is fit_transform() not applied to test sets?
from sklearn.preprocessing import StandardScaler sc = StandardScaler() X_train[:, 3:] = sc.fit_transform(X_train[:, 3:]) ... test set and why is it applied only to training set?...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
981
views
1
answer
为何finalize不一定会被调用?
书上有句话:"你不知道finalize()会不会被调用(即使能确定他调用,也不知道在什么时候调用)",这里的“你不知道finalize()会不会被调用”该怎么理解,不是说对象被回收前一定会调用这个方法吗?...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
0
votes
1.3k
views
1
answer
vue中为什么页面被包含<router-view />,keep-alive就会失效
最近在vue的实战中,发现一个问题 子路由的页面中如果存在<router-view />,我在进行页面切换的时候,order.vue页面不会被缓存 当我把order.vue注释掉之后,order.vue中的时间又可 ... div class="mine"> 我的页面 {{ new Date().getTime() }} </div> </template>...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
vue中为什么页面被包含<router-view
0
votes
1.8k
views
1
answer
When trying to export this array as a CSV file in php I get an empty sheet
I have this array, and I want to convert it into a CSV file, the problem, is that the array does not ... when opened with open with OpenCalc or excel shows something like this:...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
When
0
votes
1.4k
views
1
answer
Fabric 不同合约 数据隔离。互相查不到对方上链的数据咋回事
Fabric 1.4 用couchDB 作为状态库 A 合约上链,B合约查询A合约上链的数据查不到的问题。 折腾半天登录couchDB后台看到,不同合约建立了不同的Databases,直接导致在不同合约下操作的数据压根就不是同一个空间。有什么办法能让两个或多个合约操作的数据是同一个Databases?是不是需要弄什么配置?...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Fabric
0
votes
1.6k
views
1
answer
idea中显示的git 分支的问题
我使用IDEA开发JAVA,一个工程下有很多模块(都是不相关的项目)最近两天出现个问题,我当前正在开发的模块是 sharding 但是右下角显示的分支并不是该模块的分支,点击后弹出显示的 repository 里也没有该模块,我要如何操作能将右下角的git分支显示为模块的sharding正处于的分支...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
idea中显示的git
0
votes
2.1k
views
1
answer
java - Can Google's Places API findCurrentPlace method be used to get the exact current address, rather than the address of the closest 'Place'?
I am currently using the Google Places API within my (Java) Android application to get the current device location and display ... , "Error finding current location"); } } });...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
2.6k
views
1
answer
Python No module named 'requests' MacOS
In Pycharm I wrote: import requests url = 'https://www.w3schools.com/python/demopage.php' myobj = {'somekey': ... m pip install requests and also tried this: pip3 install requests...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Python
0
votes
2.4k
views
1
answer
php - Is there a way to get a nested Eloquent model based on ids from another table?
Hey there stackoverflow I am currently building a course application as part of my laravel project. My problem lies in ... () { return $this->belongsTo(CourseEpisode::class); }...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
php
0
votes
3.1k
views
1
answer
golang正则表达式如何成对匹配并且替换
如题,想要达成效果如下 原字符串 [内容] (xxxx) 结果字符串 http://xxxx/内容 原字符串中可能存在多个符合 []()格式的信息,希望能够全部替换掉...
asked
Jan 27, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
0
votes
5.0k
views
1
answer
flutter provider - Bloc isn't found in the widget tree
Because the code is to big I will try and sum it up in words. This is the latest exception: Error: Could ... used multiple Builder widgets but I am always hit by this exception....
asked
Jan 25, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
flutter
0
votes
3.3k
views
1
answer
帮忙看下van-list组件,下拉加载数据的问题
使用vue脚手架新建了一个练手项目,使用vant中van-list组件做一个数据列表的功能,下拉加载更多数据 遇到一个问题就是:下面的代码会一次性将所有的数据加载进去,而不是下拉后再加载更多数 ... false; } } }).catch(function(error) { console.log(error); }); } }, } </script>...
asked
Jan 25, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
0
votes
3.3k
views
1
answer
react-router动态添加路由,最后一项404路由为何一直能匹配成功?
如果是把所有路由都直接列出来则正常,刚学习react-router,想实现类似通过自定义路由表动态生成路由的功能,发现最后一项404路由总是能匹配成功,似乎这样写Switch成功匹配到了两个路由。react-router-dom版本5.2.0...
asked
Jan 25, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
0
votes
3.6k
views
1
answer
python - Store large data or a service connection per Flask session
I'm writing a small Flask application and am having it connect to Rserve using pyRserve. I want every session to ... a way to accomplish having a unique connection per session?...
asked
Jan 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
4.9k
views
1
answer
python - valueError: invalid literal for int with base 16 b ' '
I am writing a script that streams from a finance API. The script streams in data points as instances of 'bytes' ... this error? Am I correct in my understanding of the error?...
asked
Jan 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
3.6k
views
1
answer
oracle - DBMS_SCHEDULER.CREATE_JOB returning "unknown command"
I am trying to create a simple SQL job in Oracle using SQL Developer. This job will run daily and will ... - DBMS_SCHEDULER.CREATE_JOB ( Error report - Unknown Command Any idea?...
asked
Jan 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
oracle
0
votes
4.3k
views
1
answer
preg match all - Using PHP to get initials of names with 4 letters of last name
I have a small bit of code that I'm using to output the initials of a group of names: $names = array("Tom Hanks", ... the last name are used. What is the best way to achieve that?...
asked
Jan 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
preg
0
votes
3.6k
views
1
answer
chatterbot not finding responses and failing to select from multiple responses
Having previously run conversations using a single corpus, which were?rather directionless and full of non-sequiturs, I am ... (TypeError: 'str' object is not callable>>>?...
asked
Jan 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
chatterbot
0
votes
4.3k
views
1
answer
Firebase Authentication : is there any limits in sign in with google options
is there any limits on firebase Authentication with google sign in. if yes how many gmail's can i authenticate per day...
asked
Jan 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Firebase
0
votes
3.6k
views
1
answer
vue typescript 写法问题,事件在ts里面怎么定义的?
如图,箭头的这个报错提示怎么干掉?逻辑是通的,就是这个提示我不知道咋整...
asked
Jan 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
vue
0
votes
3.6k
views
1
answer
c++ - Indentation after for instruction in xcode doesn't work
I've been using xcode for some months and this has never happened before, i'm not sure whether i pressed something ... 't happen with other instructions like while or if. Help?...
asked
Jan 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
4.7k
views
1
answer
java - A bug in a regex in JDK 8?
I have this reference working Perl script with a regex, copied from a Java snippet that isn't giving the expected ... engines, and there doesn't appear to be anything applicable....
asked
Jan 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
3.2k
views
1
answer
How can I save query results into a new column and save it in the table with SQL Oracle Live?
This is the query: SELECT ROUND(column_1,0) as new_column_to_save FROM table_to_save_to Thank you...
asked
Jan 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
3.4k
views
1
answer
Trouble with storing values in arrays in C
Disclaimer: My problem may not be related to storing values in arrays, it is just what I believe the problem to be ... test and all the if/else statements are running as intended...
asked
Jan 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Trouble
Page:
1
2
3
4
5
6
...
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] 这是浏览器的Bug吗?
参数顺序不同导致浏览器不加载css
[2] 哥哥们,在vs code中,如何不让TypeScript检测非ts的文件?
[3] html - certain images wont show up in codepen, but do show up in we3schools
[4] Internet Explorer Automation with VBA input events
[5] python可以实现延时提示框吗?
[6] autodesk forge怎么修改第一人称视角位置。
[7] java中有比较好的方式去获取某个月中星期几所对应的日期吗?
[8] javascript - JS: protecting data from being accessible in console
[9] Create two dataframes using Pandas from a text file Python
[10] react 函数组件里面自定义组件用标签的形式去渲染,为什么会导致重复渲染
2.1m
questions
2.1m
answers
60
comments
56.1k
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
...