大约有 47,000 项符合查询结果（耗时：0.0322秒） [XML]
Convert UTF-8 encoded NSData to NSString
... UTF-8 encoded NSData from windows server and I want to convert it to NSString for iPhone. Since data contains characters (like a degree symbol) which have different values on both platforms, how do I convert data to string?
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Upload files with HTTPWebrequest (multipart/form-data)
...request stream. Here is the result:
public static void HttpUploadFile(string url, string file, string paramName, string contentType, NameValueCollection nvc) {
log.Debug(string.Format("Uploading {0} to {1}", file, url));
string boundary = "---------------------------" + DateTime...
Longest line in a file
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Why the extra cat command? Just give the file name directly as an argument to awk.
– Thomas Padron-McCarthy
Oct 31 '09 at 21:40
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Why is unsigned integer overflow defined behavior but signed integer overflow isn't?
... problems if the compiler had to "arrange for another behaviour" (e.g. use extra instructions to check for potential overflow and calculate differently in that case).
It is also worth noting that "undefined behaviour" doesn't mean "doesn't work". It means that the implementation is allowed to do w...
Notification passes old Intent Extras
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android gotcha #147 - so an Intent that has different extras (via putExtra) are considered the same and re-used because i did not provide a unique id to some pending intent call - terrible api
– wal
Nov 30 '16 at 7:07
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Android screen size HDPI, LDPI, MDPI [duplicate]
... your emulator. 240 is hdpi, 160 is mdpi and below that are usually ldpi.
Extract from Android Developer Guide link above:
320dp: a typical phone screen (240x320 ldpi, 320x480 mdpi, 480x800 hdpi, etc).
480dp: a tweener tablet like the Streak (480x800 mdpi).
600dp: a 7” tablet (600x1024 mdpi)...
Best way to test if a row exists in a MySQL table
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Suggest you not to use Count because count always makes extra loads for db use SELECT 1 and it returns 1 if your record right there otherwise it returns null and you can handle it.
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Get a random item from a JavaScript array [duplicate]
...n) given a number, or given anything else, a guaranteed random value!
For extra fun, the array return is generated by calling the function recursively based on the array's length :)
Working demo at http://jsfiddle.net/2eyQX/
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Iterate an iterator by chunks (of n) in Python? [duplicate]
...ry and take much longer to run. Why do that if you don't have to? At 200K, extra temp storage makes the overall program take 3.5x longer to run than with it removed. Just that one change. So it is a pretty big deal. NumPy won't work because the iterator is a database cursor, not a list of numbers.
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.NET XML serialization gotchas? [closed]
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When serializing into an XML string from a memory stream, be sure to use MemoryStream#ToArray() instead of MemoryStream#GetBuffer() or you will end up with junk characters that won't deserialize properly (because of the extra buffer allocated).
http://m...