大约有 5,500 项符合查询结果(耗时:0.0300秒) [XML]

https://stackoverflow.com/ques... 

How to git reset --hard a subdirectory?

... +100 Try changing git checkout -- a to git checkout -- `git ls-files -m -- a` Since version 1.7.0, Git's ls-files honors the skip-w...
https://stackoverflow.com/ques... 

What is the best way to programmatically detect porn images? [closed]

..."*.jpg")): skin_percent = get_skin_ratio(Image.open(image_file)) * 100 if skin_percent>30: print "PORN {0} has {1:.0f}% skin".format(image_file, skin_percent) else: print "CLEAN {0} has {1:.0f}% skin".format(image_file, skin_percent) This code mea...
https://stackoverflow.com/ques... 

Heatmap in matplotlib with pcolor?

...opriate font and dpi sns.set(font_scale=1.2) sns.set_style({"savefig.dpi": 100}) # plot it out ax = sns.heatmap(nba_norm, cmap=plt.cm.Blues, linewidths=.1) # set the x-axis labels on the top ax.xaxis.tick_top() # rotate the x-axis labels plt.xticks(rotation=90) # get figure (usually obtained via "fi...
https://stackoverflow.com/ques... 

Array vs. Object efficiency in JavaScript

... The short version: Arrays are mostly faster than objects. But there is no 100% correct solution. Update 2017 - Test and Results var a1 = [{id: 29938, name: 'name1'}, {id: 32994, name: 'name1'}]; var a2 = []; a2[29938] = {id: 29938, name: 'name1'}; a2[32994] = {id: 32994, name: 'name1'}; var o =...
https://stackoverflow.com/ques... 

Resize a large bitmap file to scaled output file on Android

... 100 Justin answer translated to code (works perfect for me): private Bitmap getBitmap(String path...
https://stackoverflow.com/ques... 

How do I check if an element is really visible with JavaScript? [duplicate]

... +100 For the point 2. I see that no one has suggested to use document.elementFromPoint(x,y), to me it is the fastest way to test if an e...
https://stackoverflow.com/ques... 

Best way to serialize an NSData into a hexadeximal string

...onversion: BenchMark (mean time for a 1024 bytes data conversion repeated 100 times): Dave Gallagher : ~8.070 ms NSProgrammer : ~0.077 ms Peter : ~0.031 ms This One : ~0.017 ms @implementation NSData (BytesExtras) static char _NSData_BytesConversionString_[512] = "000102030405...
https://www.fun123.cn/referenc... 

App Inventor 2 SQLite 拓展:超流行兼容主流SQL语法的迷你本地数据库引擎 ...

...工作,因此不会阻塞主 UI 线程。这对于在可能需要超过 100 毫秒左右的操作期间获得良好的用户体验非常重要。阻塞主 UI 线程将使您的应用程序看起来“冻结”并变得无响应,用户不喜欢这样。 当您需要执行需要一段时间的数...
https://stackoverflow.com/ques... 

Convert unix time to readable date in pandas dataframe

... JeffJeff 100k1717 gold badges187187 silver badges162162 bronze badges ...
https://stackoverflow.com/ques... 

Recommended SQL database design for tags or tagging [closed]

...entifier and if you run out of space in 2nd column which contains lets say 100 items create another row. Now while searching for items for a tag it will be super fast. share | improve this answer ...