大约有 40,000 项符合查询结果(耗时:0.0439秒) [XML]

https://stackoverflow.com/ques... 

Algorithm to compare two images

...t finds 4% of positives in our test data. However, one algorithm may find all the matches, but also have a large 20% false positive rate, so there are several ways to rate your algorithms. The test data should attempt to be designed to cover as many types of dynamics as possible that you would exp...
https://stackoverflow.com/ques... 

What is “android.R.layout.simple_list_item_1”?

...id/platform_frameworks_base/tree/master/core/res/res/layout ) You can actually view the code for the layouts. share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

C# 4.0 optional out/ref arguments

Does C# 4.0 allow optional out or ref arguments? 9 Answers 9 ...
https://stackoverflow.com/ques... 

How to deep copy a list?

... don't make a deep copy using list() (Both list(...) and testList[:] are shallow copies). You use copy.deepcopy(...) for deep copying a list. deepcopy(x, memo=None, _nil=[]) Deep copy operation on arbitrary Python objects. See the following snippet - >>> a = [[1, 2, 3], [4, 5, 6]]...
https://stackoverflow.com/ques... 

Naming cookies - best practices [closed]

... @Emanuil: To distinguish it from all the other cookies generated by other apps on the same domain. – Ignacio Vazquez-Abrams Sep 19 '12 at 20:50 ...
https://stackoverflow.com/ques... 

mysql_config not found when installing mysqldb python interface

...the linux server I'm connected to via ssh. The script uses mysqldb. I have all the other components I need, but when I try to install mySQLdb via setuptools like so:, ...
https://stackoverflow.com/ques... 

How can I find the current OS in Python? [duplicate]

... I usually use sys.platform (docs) to get the platform. sys.platform will distinguish between linux, other unixes, and OS X, while os.name is "posix" for all of them. For much more detailed information, use the platform module. Th...
https://stackoverflow.com/ques... 

Most efficient method to groupby on an array of objects

...g callback functions to return a sorting criteria – y_nk Jul 6 '16 at 16:50 118 Here is one that ...
https://stackoverflow.com/ques... 

How to run a program without an operating system?

How do you run a program all by itself without an operating system running? Can you create assembly programs that the computer can load and run at startup, e.g. boot the computer from a flash drive and it runs the program that is on the CPU? ...
https://stackoverflow.com/ques... 

How do you Encrypt and Decrypt a PHP String?

... You may also use GCM (which removes the need for a separate MAC). Additionally, ChaCha20 and Salsa20 (provided by libsodium) are stream ciphers and do not need special modes. Unless you chose GCM above, you should authenticate the ciphertext with HMAC-SHA-256 (or, for the stream ciphers, Poly1305 -...