大约有 46,000 项符合查询结果（耗时：0.0715秒） [XML]
CSS: fixed position on x-axis but not y?
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I love this solution, and just used it myself. One problem I have with it though is that the refreshes are kind of choppy when you do smooth scrolling (eg: by dragging the scrollbar). It seems javascript refresh is slower than css refresh. Any sol...
MySQL: Selecting multiple fields into multiple variables in a stored procedure
...x isn't quite right: you need to list the fields in order before the INTO, and the corresponding target variables after:
SELECT Id, dateCreated
INTO iId, dCreate
FROM products
WHERE pName = iName
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Design for Facebook authentication in an iOS app that also accesses a secured web service
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I just dealt with this myself, and here's the part that bit me:
In your step 5... It's possible for a user to register for an account with you entirely separate from their Facebook ID, right? Then some other time they log in with Facebook.... And you just...
How can I find non-ASCII characters in MySQL?
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This only works (for me anyway) to find strings that contain NONE of those characters. It does not find strings that contain a mix of ASCII and non-ASCII characters.
– Ian
Sep 11 '18 at 7:24
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Good examples using java.util.logging [closed]
...terized versions of the logging facilities to keep from generating tons of String concatenation garbage that GC will have to keep up with. Object[] as above is cheap, on the stack allocation usually.
With exception handling, always log the complete exception details:
try {
...something that ...
How does the NSAutoreleasePool autorelease pool work?
... the drain/release confusion:
int main(void) {
@autoreleasepool {
NSString *string;
string = [[[NSString alloc] init] autorelease];
/* use the string */
}
}
In the example above please note the @autoreleasepool block. This is documented here.
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Find current directory and file's directory [duplicate]
...h) (returns "the directory name of pathname path")
os.getcwd() (returns "a string representing the current working directory")
os.chdir(path) ("change the current working directory to path")
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Get $_POST from multiple checkboxes
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Set the name in the form to check_list[] and you will be able to access all the checkboxes as an array($_POST['check_list'][]).
Here's a little sample as requested:
<form action="test.php" method="post">
<input type="checkbox" name="check_list[]" valu...
Java exception not caught?
...ava 7 example: http://ideone.com/0YdeZo
From Javadoc's example:
static String readFirstLineFromFileWithFinallyBlock(String path)
throws IOException {
BufferedReader br = new BufferedReader(new FileReader(path));
try {
return br...
When are C++ macros beneficial? [closed]
...e original snippet: << FILE ":" << is fine, FILE generates a string constant, which will be concatenated with the ":" into a single string by the pre-processor.
– Frank Szczerba
Mar 19 '09 at 23:59
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