大约有 47,000 项符合查询结果(耗时:0.0446秒) [XML]

https://stackoverflow.com/ques... 

How to import other Python files?

...just a wrapper around __import__, see the docs. import importlib moduleName = input('Enter module name:') importlib.import_module(moduleName) Note: the .py extension should be removed from moduleName. The function also defines a package argument for relative imports. Update: Answer below is o...
https://stackoverflow.com/ques... 

Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C

...n C, but should be portable to your language of choice (just don't look at me when they're not as fast :) Options Low Memory (32-bit int, 32-bit machine)(from here): unsigned int reverse(register unsigned int x) { x = (((x & 0xaaaaaaaa) >> 1) | ((x & 0x55555555) << 1)); ...
https://stackoverflow.com/ques... 

Add Foreign Key to existing table

... Reasons help me understand and remember. This is because you can't add a foreign key to an non-unsigned field, correct? – PixMach Sep 28 '15 at 21:25 ...
https://stackoverflow.com/ques... 

How to count objects in PowerShell?

...urn objects instead of text. So for example, running get-alias returns me a number of System.Management.Automation.AliasInfo objects: ...
https://stackoverflow.com/ques... 

Is there a way to force ASP.NET Web API to return plain text?

...nstead return the content like this: [HttpGet] public HttpResponseMessage HelloWorld() { string result = "Hello world! Time is: " + DateTime.Now; var resp = new HttpResponseMessage(HttpStatusCode.OK); resp.Content = new StringContent(result, System.Text.Encoding....
https://stackoverflow.com/ques... 

What happens when a duplicate key is put into a HashMap?

If I pass the same key multiple times to HashMap ’s put method, what happens to the original value? And what if even the value repeats? I didn’t find any documentation on this. ...
https://stackoverflow.com/ques... 

Getting only Month and Year from SQL DATE

...which the date is in. NOTE: In SQL Server 2008, You will still have the TIME attached as 00:00:00.000 This is not exactly the same as "removing" any notation of day and time altogether. Also the DAY set to the first. e.g. 2009-10-01 00:00:00.000 ...
https://stackoverflow.com/ques... 

What are the key differences between Apache Thrift, Google Protocol Buffers, MessagePack, ASN.1 and

All of these provide binary serialization, RPC frameworks and IDL. I'm interested in key differences between them and characteristics (performance, ease of use, programming languages support). ...
https://stackoverflow.com/ques... 

Regex - Should hyphens be escaped? [duplicate]

... special character in regex, for instance, to select a range, I could do something like: 3 Answers ...
https://stackoverflow.com/ques... 

Can git automatically switch between spaces and tabs?

... The clean filter isn't working for me. When I do git add . I get an error saying "error: external filter expand --tabs=4 --initial failed". I'm on Windows. Does that make a difference? – Jeremy Hicks Jun 9 '11 at 19:06 ...