大约有 41,000 项符合查询结果（耗时：0.0649秒） [XML]
How do I test if a string is empty in Objective-C?
How do I test if an NSString is empty in Objective-C?
30 Answers
30
...
How can I save an image with PIL?
I have just done some image processing using the Python image library (PIL) using a post I found earlier to perform fourier transforms of images and I can't get the save function to work. The whole code works fine but it just wont save the resulting image:
...
Is object empty? [duplicate]
What is the fastest way to check if an object is empty or not?
23 Answers
23
...
Web Application Problems (web.config errors) HTTP 500.19 with IIS7.5 and ASP.NET v2
This is driving the whole team crazy. There must be some simple mis-configured part of IIS or our Web Server, but every time we try to run out ASP.NET Web Application on IIS 7.5 we get the following error...
...
Remove a file from a Git repository without deleting it from the local filesystem
My initial commit contained some log files. I've added *log to my .gitignore , and now I want to remove the log files from my repository.
...
Simple C example of doing an HTTP POST and consuming the response
I would like to create a very simple C application that does an HTTP post. It will take a few parameters, and use these to construct a URL. I'd just like to do a simple HTTP POST and get the response without the use of curl (the libraries are not and will not be installed on the machine this needs...
R memory management / cannot allocate vector of size n Mb
I am running into issues trying to use large objects in R. For example:
8 Answers
8
...
What is the use of static variable in C#? When to use it? Why can't I declare the static variable in
I have searched about static variables in C#, but I am still not getting what its use is. Also, if I try to declare the variable inside the method it will not give me the permission to do this. Why?
...
Best way to reverse a string
I've just had to write a string reverse function in C# 2.0 (i.e. LINQ not available) and came up with this:
48 Answers
...
Error: Argument is not a function, got undefined
Using AngularJS with Scala Play, I'm getting this error.
17 Answers
17
...