大约有 47,000 项符合查询结果(耗时:0.0400秒) [XML]

https://stackoverflow.com/ques... 

How to scale down a range of numbers with a known min and max value

...n which is what we want. So we need to do a translation and a scaling. Now if instead we want to get arbitrary values of a and b, we need something a little more complicated: (b-a)(x - min) f(x) = -------------- + a max - min You can verify that putting in min for x now give...
https://stackoverflow.com/ques... 

How can one change the timestamp of an old commit in Git?

...ill have to reset and pull, or delete and clone from scratch. As far as I know, there is no method that gets around this. – EriF89 Sep 9 '14 at 9:12 4 ...
https://stackoverflow.com/ques... 

How to check for an active Internet connection on iOS or macOS?

... Use of www.appleiphonecell.com is now (2018) a bad choice. It now redirects to Apple.com which is a > 40kB html file. Back to google.com - it is only 11kB. BTW google.com/m is same size but is reported to be slower by 120 msec. – Blu...
https://stackoverflow.com/ques... 

Java using enum with switch statement

...ue and then switch on the enum value. enum GuideView { SEVEN_DAY, NOW_SHOWING, ALL_TIMESLOTS } // Working on the assumption that your int value is // the ordinal value of the items in your enum public void onClick(DialogInterface dialog, int which) { // do your own bounds checking...
https://stackoverflow.com/ques... 

How to obtain Signing certificate fingerprint (SHA1) for OAuth 2.0 on Android?

... MD5 appears in logcat now (not in the window during creation). – Tool Aug 9 '13 at 18:16 4 ...
https://stackoverflow.com/ques... 

Measuring execution time of a function in C++

...5; } } int main() { auto t1 = std::chrono::high_resolution_clock::now(); function(); auto t2 = std::chrono::high_resolution_clock::now(); auto duration = std::chrono::duration_cast<std::chrono::microseconds>( t2 - t1 ).count(); std::cout << duration; return...
https://stackoverflow.com/ques... 

Is there a way to create xxhdpi, xhdpi, hdpi, mdpi and ldpi drawables from a large scale image?

...time (downside: will only work on fairly recent devices, where -xxhdpi is known). Option #2: Use Android Asset Studio to downsample them for you. Option #3: Automate the process within a graphics editor, per ssantos' answer. Option #4: Script yourself a solution, using something like ImageMagick. Op...
https://stackoverflow.com/ques... 

Why does auto a=1; compile in C?

...e, Stroustrup comments on this, but I can't find the exact reference right now.) (*) String handling in B was interesting: you'd use arrays of int and pack multiple characters in each member. B was actually BCPL with different syntax. ...
https://stackoverflow.com/ques... 

How do I get the day of the week with Foundation?

...ter alloc] init] ; [dateFormatter setDateFormat:@"EEEE"]; NSDate *now = [[NSDate alloc] init]; NSString *dateString = [format stringFromDate:now]; NSString *theDate = [dateFormat stringFromDate:now]; NSString *theTime = [timeFormat stringFromDate:now]; NSString *week = [dat...
https://stackoverflow.com/ques... 

Why does setTimeout() “break” for large millisecond delay values?

... You can use: function runAtDate(date, func) { var now = (new Date()).getTime(); var then = date.getTime(); var diff = Math.max((then - now), 0); if (diff > 0x7FFFFFFF) //setTimeout limit is MAX_INT32=(2^31-1) setTimeout(function() {runAtDate(date, func...