大约有 40,000 项符合查询结果（耗时：0.0504秒） [XML]
How to split csv whose columns may contain ,
...7/31/2008 14:22,Geoff Dalgas,6/5/2011 22:21,http://stackoverflow.com,\"Corvallis, OR\",7679,351,81,b437f461b3fd27387c5d8ab47a293d35,34";
TextFieldParser parser = new TextFieldParser(new StringReader(csv));
// You can also read from a file
// TextFieldParser parser = new TextFieldParser("mycsvfile....
Why would one use REST instead of SOAP based services? [closed]
...
Less overhead (no SOAP envelope to wrap every call in)
Less duplication (HTTP already represents operations like DELETE, PUT, GET, etc. that have to otherwise be represented in a SOAP envelope).
More standardized - HTTP operations are well understood and operate consist...
Compare double to zero using epsilon
...0 00000000 00000000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 00000000 00000000 00000000 00000000 00000000 00000001 × 2^0 = 1 + 2^-52
Therefore:
epsilon = (1 + 2^-52) - 1 = 2^-52
Are there any numbers between 0 and epsilon? Plent...
How do I copy to the clipboard in JavaScript?
...copy event
See Clipboard API documentation on Overriding the copy event.
Allows you to modify what appears on the clipboard from any copy event, can include other formats of data other than plain text.
Not covered here as it doesn't directly answer the question.
General development notes
Don't...
Why does .NET use banker's rounding as default?
...m. Over the course of many roundings performed, you will average out that all .5's end up rounding equally up and down. This gives better estimations of actual results if you are for instance, adding a bunch of rounded numbers. I would say that even though it isn't what some may expect, it's prob...
What is the difference between visibility:hidden and display:none?
...display:none means that the tag in question will not appear on the page at all (although you can still interact with it through the dom). There will be no space allocated for it between the other tags.
visibility:hidden means that unlike display:none, the tag is not visible, but space is allocat...
Can you use a trailing comma in a JSON object?
When manually generating a JSON object or array, it's often easier to leave a trailing comma on the last item in the object or array. For example, code to output from an array of strings might look like (in a C++ like pseudocode):
...
Where does Xcode 4 store Scheme Data?
... use Xcode 4, and I'm trying to find the file in a project where it stores all of a project's Schemes. I figured they would be stored in a file in the xcodeproj directory somewhere, but for the life of me I can't find which one.
...
Is there a way to loop through a table variable in TSQL without using a cursor?
...
First of all you should be absolutely sure you need to iterate through each row — set based operations will perform faster in every case I can think of and will normally use simpler code.
Depending on your data it may be possible t...
favicon.png vs favicon.ico - why should I use PNG instead of ICO?
...updates and notes from various others in this thread:
ICOs and PNGs both allow full alpha channel based transparency
ICO allows for backwards compatibility to older browsers (e.g. IE6)
PNG probably has broader tooling support for transparency, but you can find tools to create alpha-channel ICOs as...