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
616
views
1
answer
xcode - macOS更新后Git无法正常运行(xcrun:错误:无效的活动开发人员路径(/ Library / Developer / CommandLineTools)(Git is not working after macOS Update (xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools))
Last night (November 2018) I updated to macOS Mojave, (this will probably work for Catalina too) (昨晚(2018 ... /CommandLineTools/usr/bin/xcrun ask by dustbuster translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
xcode
0
votes
190
views
1
answer
c# - 何时使用struct?(When to use struct?)
When should you use struct and not class in C#? (什么时候应该在C#中使用struct而不是class?)My conceptual model is that structs are used ... 结构在语义上意味着什么?) ask by Alex Baranosky translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c#
0
votes
253
views
1
answer
php - 如何在python中使用参数调用PHP脚本(How can I call PHP script with arguments in python)
import subprocess (导入子流程) V1 = 1 #argument1 (V1 = 1#argument1) V2 = 2 #argumeng2 (V2 = 2#argumeng2) Output = subprocess. ... )Kindly help. (请帮助 ) ask by kotesh translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
php
0
votes
425
views
1
answer
jquery - 按值设置选择选项“已选择”(Set select option 'selected', by value)
I have a select field with some options in it. (我有一个select字段,其中包含一些选项 )Now I need to select one of those options ... 页面: http : //jsfiddle.net/9Stxb/) ask by w00 translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
jquery
0
votes
214
views
1
answer
android - match_parent和fill_parent有什么区别?(What is the difference between match_parent and fill_parent?)
I'm a little confused about two XML properties: match_parent and fill_parent . (我对两个XML属性有点困惑: match_parent和fill_parent )It ... (它们之间有什么区别吗?) ask by vnshetty translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
android
0
votes
864
views
1
answer
python-3.x - 刮Python a(Scraping Python a)
I have 2 tags with different contents inside the href tag and I just want one I was wondering if it is possible for ... com/" </a> ask by Jacksuel Soares Braga translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python-3.x
0
votes
612
views
1
answer
dns - 如何解决Windows 10上的“找不到服务器DNS地址”错误? [关闭](How do I solve the “server DNS address could not be found” error on Windows 10? [closed])
Closed.) 关闭 )) This question is off-topic . 这个问题是题外话 ) It is not currently accepting answers. 它当前不接受答案 ) Want to ... issue? (我该如何解决这个问题?) ask by Dixit Singla translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dns
0
votes
463
views
1
answer
docker - 如何在Docker容器中挂载主机目录(How to mount a host directory in a Docker container)
I am trying to mount a host directory into a Docker container so that any updates done on the host is reflected ... 在何处(除了Dockerfile)?) ask by Kishore Vaishnav translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
docker
0
votes
232
views
1
answer
python - 在Python中打印多个参数(Print multiple arguments in Python)
This is just a snippet of my code: (这只是我的代码的一部分:) print("Total score for %s is %s ", name, score) But I want it ... (如果有帮助的话,这就是Python 3.3 ) ask by user1985351 translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
410
views
1
answer
sql - Oracle SQL:使用另一个表中的数据更新表(Oracle SQL: Update a table with data from another table)
Table 1: (表格1:) id name desc ----------------------- 1 a abc 2 b def 3 c adf Table 2: (表2:) id name desc ----- ... 自更新一个表与来自另一个表的数据 ,但专门针对oracle SQL ) ask by Muhd translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
sql
0
votes
309
views
1
answer
python - 如何在k均值聚类算法中选择适合可视化的列?(How to select which columns are good for visualisation in k-Means clustering algorithm?)
I am trying to understand the selection of columns in csv file which should be taken into considerations to apply k-means . ( ... help. (请帮忙 ) ask by Penguin Tech translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
559
views
1
answer
css - 如何在div中将绝对定位的元素居中?(How to center absolutely positioned element in div?)
I need to place a div (with position:absolute; ) element in the center of my window. (我需要在窗口中心放置一个div (带有position:absolute; ... } Any ideas? (有任何想法吗?) ask by Ish translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
css
0
votes
518
views
1
answer
python - 将对列表转换为最小的DataFrame表示形式?(Converting a list of pairs into smallest possible DataFrame representation?)
The bounty expires in 6 days) . 赏金将 在6天后失效) ) Answers to this question are eligible for a +50 reputation bounty. 这个问题的答案有资 ... 像示例中一样,在同一列中定义每对 ) ask by Rob Rose translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
398
views
1
answer
c++ - 为什么“使用命名空间标准”被认为是不好的做法?(Why is “using namespace std;” considered bad practice?)
I've been told by others that writing using namespace std; (其他人告诉我, using namespace std;编写using namespace std;)in code ... performance? (它会影响性能吗?) ask by akbiggs translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
167
views
1
answer
javascript - 为什么任何JavaScript代码都想“削减绑定”???(Why does any JavaScript code want to “cut the binding”?)
The reason of using a (使用一个的原因) (0, foo.fn)(); is to cut the binding : the this will not longer be bound to foo ... -pattern or not?) ((是否是反模式?)) ask by nopole translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
799
views
1
answer
objective-c - Objective-C中的typedef枚举是什么?(What is a typedef enum in Objective-C?)
I don't think I fundamentally understand what an enum is, and when to use it. (我不认为我从根本上理解enum是什么,以及何时使用它 ) For ... declared here? (这里真的被宣布了什么?) ask by Craig translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective-c
0
votes
248
views
1
answer
javascript - 什么是VanillaJS?(What is VanillaJS?)
I have one simple question, that got stuck in my mind for a few days: What is VanillaJS? (我有一个简单的问题,在我的脑海里停留了几天 ... 们说 VanillaJS 时我不知道人们在谈论什么 ) ask by user1377911 translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
314
views
1
answer
c# - C#的隐藏功能? [关闭](Hidden Features of C#? [closed])
This came to my mind after I learned the following from this question : (从这个问题中学到以下内容 ... Stu (Stu的 DebuggerDisplayAttribute) DebuggerBrowsable and DebuggerStepThrough by bdukes (...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c#
0
votes
193
views
1
answer
javascript - 使用angular2和bootstrap将数组数据显示为3列(Display array data to 3 column using angular2 & bootstrap)
In my angular2 component I have listed data and I want to display those data into 3 column by using booststrap class(col-md- ... 给我一个解决方案 ) ask by Mahfuja nilufar translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
435
views
1
answer
javascript - 如何有效地计算JavaScript中对象的键/属性数量?(How to efficiently count the number of keys/properties of an object in JavaScript?)
What's the fastest way to count the number of keys/properties of an object? (计算对象的键/属性数的最快方法是什么?)It it possible to do this ... ,但此属性已在版本4的某个位置删除 )) ask by mjs translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
453
views
1
answer
javascript - 如何在JavaScript中合并两个数组并删除重复项(How to merge two arrays in JavaScript and de-duplicate items)
I have two JavaScript arrays: (我有两个JavaScript数组:) var array1 = ["Vijendra","Singh"]; var array2 = ["Singh", "Shakya"]; I ... 项按插入原始数组中的相同顺序获得?) ask by Vijjendra translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
411
views
1
answer
python - 如何在Python中将字典键作为列表返回?(How to return dictionary keys as a list in Python?)
In Python 2.7 , I could get dictionary keys , values , or items as a list: (在Python 2.7中 ,我可以将字典键 , 值或项作为列表获取:) >>> ... ? (我想知道,是否有更好的方法在Python 3中返回列表?) ask by translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
429
views
1
answer
python - 如何设置当前工作目录? [重复](How to set the current working directory? [duplicate])
This question already has an answer here: (这个问题在这里已有答案:) How do I change directory (cd) in Python? (如何在Python中更改目录(cd)? ... ? (如何在Python中设置当前工作目录?) ask by ricardo translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
469
views
0
answers
hadoop - 如何从HIVE(SQL)的列中删除文本(How do I remove text from columns in HIVE (sql))
I am trying to import data from a CSV file (latlong.csv) and I want to remove all of the quotes from my columns. (我正在尝试 ... , '') error message (错误信息) ask by Alex translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
hadoop
0
votes
357
views
1
answer
python - 通过Anaconda安装时引用PyCharm中的库(Referencing libraries in PyCharm when installed through Anaconda)
Our first semester C++ course requires us to develop an intelligent chatbot for which I have been trying to follow ... /youtu.be/wypVcNIH6D4) ask by Raina Ali translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
509
views
1
answer
regex - 字母数字和下划线的正则表达式(Regular Expression for alphanumeric and underscores)
我想有一个正则表达式,检查字符串是否只包含大写和小写字母,数字和下划线。 ask by translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
regex
0
votes
488
views
1
answer
bash - 将一个子字符串替换为Shell脚本中的另一个字符串(Replace one substring for another string in shell script)
I have "I love Suzi and Marry" and I want to change "Suzi" to "Sara". (我有 我爱Suzi和结婚 ,我想将 Suzi 更改为 ... 这样的:) firstString="I love Sara and Marry" ask by Zincode translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
bash
0
votes
355
views
1
answer
git - 如何通过提交消息搜索Git存储库?(How to search a Git repository by commit message?)
I checked some source code into GIT with the commit message "Build 0051". (我使用提交消息 Build 0051 检查了一些源代码到GIT中 ) ... v0.5.0 build 0052. C:Source> ask by Contango translate from so...
asked
Mar 6, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
git
Page:
« prev
1
...
46
47
48
49
50
51
52
53
54
55
56
...
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] 为什么java用zookeeper做服务发现,golang用consul做服务发现,是因为语言生态问题吗?
[2] 关于数据库商品库存的架构设计问题
[3] wordpress - Deploy Raw Source Code from GitLab Repository
[4] inference - is conditioning only on propensity score sufficient to CATE estimation?
[5] vue 所有浏览器的记住密码很烦,怎么禁用
[6] vue.js - textarea does not accept the correct size after display none
[7] react devtools怎么样配置才能更简洁
[8] else & elif statements seems that is not working in Python
[9] 朋友们解释一下输出结果
[10] api - How to get data from coinapi when only press a button flutter
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
...