大约有 49,000 项符合查询结果（耗时：0.0570秒） [XML]
SHA1 vs md5 vs SHA256: which to use for a PHP login?
I'm making a php login, and I'm trying to decide whether to use SHA1 or Md5, or SHA256 which I read about in another stackoverflow article. Are any of them more secure than others? For SHA1/256, do I still use a salt?
...
How does Access-Control-Allow-Origin header work?
...arently, I have completely misunderstood its semantics. I thought of something like this:
16 Answers
...
Why doesn't Console.Writeline, Console.Write work in Visual Studio Express?
...
Console.WriteLine writes your output to the console window opened by your application (think black window with white text that appears when you open the Command Prompt.) Try System.Diagnostics.Debug.WriteLine instead.
...
How do I list all tables in a schema in Oracle SQL?
How do i list all tables in a schema in Oracle SQL?
14 Answers
14
...
How do I get elapsed time in milliseconds in Ruby?
... already, you can operate on Time objects as if they were numeric (or floating point) values. These operations result in second resolution which can easily be converted.
For example:
def time_diff_milli(start, finish)
(finish - start) * 1000.0
end
t1 = Time.now
# arbitrary elapsed time
t2 = T...
What are .dex files in Android?
I have some questions regarding dex files
3 Answers
3
...
Enable the display of line numbers in Visual Studio
Why doesn't Visual Studio have any way of showing line numbers in a source file? Is there any way to enable it, or a plugin for it? I know that the number of lines of code in a program doesn't matter, but sometimes it is nice to know how long a program is or the number of a particular line for refer...
Set a path variable with spaces in the path in a Windows .cmd file or batch file
I'm new to script writing and can't get this one to work. I could if I moved the files to a path without a space in it, but I'd like it to work with the space if it could.
...
C# convert int to string with padding zeros?
In C# I have an integer value which need to be convereted to string but it needs to add zeros before:
13 Answers
...
Generate fixed length Strings filled with whitespaces
I need to produce fixed length string to generate a character position based file. The missing characters must be filled with space character.
...