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
279
views
1
answer
html - how to make a whole row in a table clickable as a link?
I'm using Bootstrap and the following doesn't work: <tbody> <a href="#"> <tr> <td>Blah Blah</td> <td>1234567</td> <td>£158,000</td> </tr> </a> </tbody> Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
html
0
votes
334
views
1
answer
apache - How to Set AllowOverride all
I want to set the AllowOverride all But I don't know how to do it. I have found the following code by searching the ... where to put this code or how to do it? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
apache
0
votes
156
views
1
answer
c - Real-world use of X-Macros
I just learned of X-Macros. What real-world uses of X-Macros have you seen? When are they the right tool for the job? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c
0
votes
228
views
1
answer
javascript - addEventListener using for loop and passing values
This question already has answers here: Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
135
views
1
answer
How to find files that match a wildcard string in Java?
This should be really simple. If I have a String like this: ../Test?/sample*.txt then what is a generally- ... didn't have non-file arguments in the mix.) Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
433
views
1
answer
regex - Regular expression to find URLs within a string
Does anyone know of a regular expression I could use to find URLs within a string? I've found a lot of ... string which is why I need a regular expression. Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
regex
0
votes
324
views
1
answer
linux - Regex (grep) for multi-line search needed
This question already has answers here: Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
220
views
1
answer
python - How to sort a list of lists by a specific index of the inner list?
I have a list of lists. For example, [ [0,1,'f'], [4,2,'t'], [9,4,'afsd'] ] If I wanted to ... string field of the inner lists, how would you do that in python? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
53
views
1
answer
javascript - How to check file input size with jQuery?
I have a form with file upload capabilities and I would like to be able to have some nice client side error ... posting the file back to the server to check? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
74
views
1
answer
javascript - Interface type check with Typescript
This question is the direct analogon to Class type check with TypeScript I need to find out at runtime if a variable ... a method implements. How can I use it ? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
57
views
1
answer
How to rename a file using Python
I want to change a.txt to b.kml. Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
140
views
1
answer
python - How to limit execution time of a function call?
There is a socket related function call in my code, that function is from another module thus out of my ... I guess the solution must utilize another thread. Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
201
views
1
answer
.net - Close and Dispose - which to call?
Having read the threads Is SqlCommand.Dispose enough? and Closing and Disposing a WCF Service I am wondering for ... if I close Dispose rather than Close? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
.net
0
votes
546
views
1
answer
android - Environment.getExternalStorageDirectory() deprecated in API level 29 java
Working on android Java, recently updated SDK to API level 29 now there is a warning shown which states that ... } What will be the alternative for this? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
android
0
votes
443
views
1
answer
regex - Validating IPv4 addresses with regexp
I've been trying to get an efficient regex for IPv4 validation, but without much luck. It seemed at one point I had had ... 1-3 numbers, or do not work for me. Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
regex
0
votes
285
views
1
answer
php - Failed to connect to mailserver at "localhost" port 25
I keep getting this error when I try to send an e-mail in PHP: Warning: mail() [function.mail]: Failed to ... as a server.. What am I doing wrong? Thanks. Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
php
0
votes
155
views
1
answer
mysql - Select values that meet different conditions on different rows?
This is a very basic query I can't figure out.... Let's say I have a two column table like this: userid | ... I want returned is userid 1. How do I do this? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mysql
0
votes
200
views
1
answer
C function syntax, parameter types declared after parameter list
I'm relatively new to C. I've come across a form of function syntax I've never seen before, where the parameter types ... argc; char *argv[]; { return(0); } Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
C
0
votes
1.6k
views
1
answer
sqlite - cannot load such file -- sqlite3/sqlite3_native (LoadError) on ruby on rails
When I try to setup basic installation and initiation of server using Rails 4.0.0 on Ruby 2.0.0, I'm ... can I avoid this error message and proceed further? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
sqlite
0
votes
370
views
1
answer
delay - Is process in VHDL reentrant?
Is it possible two or more sequential run for a process in VHDL? What will happen if another event happen ( ... model in mind for process is completely wrong? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
delay
0
votes
261
views
1
answer
How do I write to a Python subprocess' stdin?
I'm trying to write a Python script that starts a subprocess, and writes to the subprocess stdin. I'd also like to ... and still be OK then that'd be great. Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
88
views
1
answer
c++ - How can I use cout << myclass
myclass is a C++ class written by me and when I write: myclass x; cout << x; How do I output 10 or 20.2, like an integer or a float value? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
110
views
1
answer
c++ - What does 'unsigned temp:3' in a struct or union mean?
This question already has answers here: Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
68
views
1
answer
java - How Do I Use KeyEventDispatcher
I have been trying to make a Pong clone as sort of a beginner's project, and I've hit a road block. I ... is my source so far: http://pastebin.com/N9fLMzFT Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
169
views
1
answer
c++ - Why are elementwise additions much faster in separate loops than in a combined loop?
Suppose a1, b1, c1, and d1 point to heap memory, and my numerical code has the following core loop. const int n ... (It shows FLOP/s for different values of n.) Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
331
views
1
answer
xcode - How to change the name of an iOS app?
I began an iPhone project the other day with a silly development code name, and now I want to change the name ... that I'm hoping for a more civilized solution. Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
xcode
0
votes
223
views
1
answer
How do I pass environment variables to Docker containers?
I'm new to Docker, and it's unclear how to access an external database from a container. Is the ... ? # Dockerfile ENV DATABASE_URL amazon:rds/connection?string Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
111
views
1
answer
What is the point of "final class" in Java?
I am reading a book about Java and it says that you can declare the whole class as final. I cannot ... the idea of class having the characteristics of objects? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
What
Page:
« prev
1
...
320
321
322
323
324
325
326
327
328
329
330
...
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] 请教一下两个系统的钱包功能设计
[2] 如何通过css的方法获取高度不确定的元素高度
[3] Translating IF condition from Excel to R
[4] Rust 有返回值类型的函数中的 else if 为什么一定要写else,不然报错
[5] ruby on rails - Route constraint fatal
[6] Exposing docker to internet "Failed to complete tunnel connection"
[7] Joining tables with comma separated values in Laravel 8
[8] 为什么Vue项目运行在IE9中能显示,在IE10/11中白屏?
[9] java - Hibernate L2 cache issues with EntityGraph and LEFT JOIN FETCH queries
[10] java - Files.move(...) throwing FileSystemException: The process cannot access the file be cause it is being used by another process
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
...