大约有 32,000 项符合查询结果(耗时:0.0365秒) [XML]

https://stackoverflow.com/ques... 

Remove the first character of a string

... If this is the accepted answer then the question should have been "how do I remove the first character of a string". – Spaceghost Feb 9 '11 at 14:25 ...
https://stackoverflow.com/ques... 

Stopwatch vs. using System.DateTime.Now for timing events [duplicate]

...rdware and operating system support a high-resolution performance counter, then the Stopwatch class uses that counter to measure elapsed time. Otherwise, the Stopwatch class uses the system timer to measure elapsed time. Use the Frequency and IsHighResolution fields to determine the precision and re...
https://stackoverflow.com/ques... 

Is there an MD5 Fixed Point where md5(x) == x?

...the MD5 sum of any string is uniformly distributed over all possible sums, then the probability that any given 128-bit string is a fixed point is 1/2128. Thus, the probability that no 128-bit string is a fixed point is (1 − 1/2128)2128, so the probability that there is a fixed point is 1 − (1 ...
https://stackoverflow.com/ques... 

What is the best way to repeatedly execute a function every x seconds?

... Then apscheduler at packages.python.org/APScheduler should also get a mention at this point. – Daniel F Jan 27 '13 at 20:06 ...
https://stackoverflow.com/ques... 

How to align 3 divs (left/center/right) inside another div?

...d="center"></div> </div> P.S. You could also float right, then left, then center. The important thing is that the floats come before the "main" center section. P.P.S. You often want last inside #container this snippet: <div style="clear:both;"></div> which will extend ...
https://stackoverflow.com/ques... 

Missing artifact com.microsoft.sqlserver:sqljdbc4:jar:4.0

...n repository. You need to download the jar from the Microsoft website, and then manually install it into your local maven repository. You can do this with the following maven command: mvn install:install-file -Dfile=sqljdbc4.jar -DgroupId=com.microsoft.sqlserver -DartifactId=sqljdbc4 -Dversion=4.0...
https://stackoverflow.com/ques... 

How to calculate an angle from three points? [closed]

... If you mean the angle that P1 is the vertex of then using the Law of Cosines should work: arccos((P122 + P132 - P232) / (2 * P12 * P13)) where P12 is the length of the segment from P1 to P2, calculated by sqrt((P1x - P2x)2 + (P1y - P2y)2) ...
https://stackoverflow.com/ques... 

Cannot highlight all occurrences of a selected word in Eclipse

...lipse. Prior to that, it would only work if I first selected the word and then toggled it on. I couldn't just keep it on. Now it's fine. – rimsky May 18 '16 at 19:19 1 ...
https://stackoverflow.com/ques... 

Git stash uncached: how to put away all unstaged changes?

...clude-untracked option is used, all untracked files are also stashed and then cleaned up with git clean, leaving the working directory in a very clean state. If the --all option is used instead then the ignored files are stashed and cleaned in addition to the untracked files. And this is a...
https://stackoverflow.com/ques... 

How do I update devDependencies in NPM?

...stall npm-check-updates (https://www.npmjs.org/package/npm-check-updates), then jump into your project folder and run: npm-check-updates And to update and save changes to your package.json file: npm-check-updates -u sha...