大约有 45,000 项符合查询结果(耗时:0.0778秒) [XML]

https://stackoverflow.com/ques... 

pycharm running way slow

... Every performance problem with PyCharm is unique, a solution that helps to one person will not work for another. The only proper way to fix your specific performance problem is by capturing the CPU profiler snapshot as described in this document and se...
https://stackoverflow.com/ques... 

C# Convert string from UTF-8 to ISO-8859-1 (Latin1) H

...led on this topic and I have looked at every answer, but I still don't get it. 8 Answers ...
https://stackoverflow.com/ques... 

What does character set and collation mean exactly?

I can read the MySQL documentation and it's pretty clear. But, how does one decide which character set to use? On what data does collation have an effect? ...
https://stackoverflow.com/ques... 

Is there any way to prevent input type=“number” getting negative values?

I want to get only positive values, is there any way to prevent it using only html Please don't suggest validation method ...
https://stackoverflow.com/ques... 

Should Gemfile.lock be included in .gitignore?

I'm sort of new to bundler and the files it generates. I have a copy of a git repo from GitHub that is being contributed to by many people so I was surprised to find that bundler created a file that didn't exist in the repo and wasn't in the .gitignore list. ...
https://stackoverflow.com/ques... 

image processing to improve tesseract OCR accuracy

I've been using tesseract to convert documents into text. The quality of the documents ranges wildly, and I'm looking for tips on what sort of image processing might improve the results. I've noticed that text that is highly pixellated - for example that generated by fax machines - is especially di...
https://stackoverflow.com/ques... 

System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()

... System.currentTimeMillis() is obviously the most efficient since it does not even create an object, but new Date() is really just a thin wrapper about a long, so it is not far behind. Calendar, on the other hand, is relatively slow and very complex, since it has to deal with the considerab...
https://stackoverflow.com/ques... 

Transposing a 2D-array in JavaScript

...lback is invoked only for indexes of the array which have assigned values; it is not invoked for indexes which have been deleted or which have never been assigned values. callback is invoked with three arguments: the value of the element, the index of the element, and the Array object being tra...
https://stackoverflow.com/ques... 

Data access object (DAO) in Java

...through a document and I came across a term called DAO . I found out that it is a Data Access Object. Can someone please explain me what this actually is? ...
https://stackoverflow.com/ques... 

Why does Razor _layout.cshtml have a leading underscore in file name?

In the default ASP.NET MVC 3 project, layout & partial cshtml files start with an underscore 5 Answers ...