大约有 40,000 项符合查询结果（耗时：0.0400秒） [XML]
PDO Prepared Inserts multiple rows in single query
...ame answer as Mr. Balagtas, slightly clearer...
Recent versions MySQL and PHP PDO do support multi-row INSERT statements.
SQL Overview
The SQL will look something like this, assuming a 3-column table you'd like to INSERT to.
INSERT INTO tbl_name
(colA, colB, colC)
VALUES (?, ?, ...
What does the restrict keyword mean in C++?
...return *a + *b;
}
int main(void) {
int a = 1, b = 1, c;
c = foo(&a, &b);
printf("c == %d\n", c);
return 0;
}
I also found a nice article on the use of restrict:
Demystifying The Restrict Keyword
Edit2
I ran across an article which specifically discusses the use of re...
Getting a list of all subdirectories in the current directory
...hich is available both in Python 2 (see doc) and Python 3 (see doc). For example: next(os.walk('.'))[1].
– Lucio Paiva
Jan 1 '15 at 21:49
...
HTML-encoding lost when attribute read from input field
...his implementation of a replaceAll method:
http://dumpsite.com/forum/index.php?topic=4.msg29#msg29
(also referenced here: Fastest method to replace all instances of a character in a string)
Some performance results here:
http://jsperf.com/htmlencoderegex/25
It gives identical result string to the b...
Clone Object without reference javascript [duplicate]
... or something (possible in deep copy)
if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
target = {};
}
// extend jQuery itself if only one argument is passed
if ( i === length ) {
target = this;
i--;
}
for ( ; i < length; i...
UITextView that expands to text using auto layout
...rap all the code in -(CGSize)intrinsicContentSize with version >= 7.0f && version < 7.1f + else return [super intrinsicContentSize];
– David James
Mar 18 '14 at 11:41
...
What is the difference between shallow copy, deepcopy and normal assignment operation?
...
@grc But I have tried an example(I remove the new line here.) list_=[[1,2],[3,4]] newlist = list_.copy() list_[0]=[7,8] print(list_) print(newlist) The newlist still display [[1, 2], [3, 4]]. But list_[0] is a list which is mutable.
...
Real life trading API [closed]
... @Jeff Barger: There's some kludge: <elitetrader.com/vb/showthread.php?threadid=17343>
– dirkgently
Apr 13 '09 at 18:00
...
Best way to clear a PHP array's values
...o I wrote it that way because of the authors question "Best way to clear a PHP array's values". It sais 'clear', not 'new instance'. Using unset will clear $foo from the symbol table. I we are talking about very large tables I'd probably recommend $foo = null; unset($foo); since that also would clea...
What is the most efficient string concatenation method in python?
... about when to optimize: make sure to test against the worst cases. For example, I can increase my sample so that my current code goes from running at 0.17 seconds to 170 seconds. Well I want to test at larger sample sizes since there is less variation there.
– Flipper
...