大约有 48,000 项符合查询结果(耗时:0.0558秒) [XML]
XPath to find elements that does not have an id or class
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answered Mar 8 '10 at 19:36
WelbogWelbog
54.1k88 gold badges101101 silver badges118118 bronze badges
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Testing if object is of generic type in C#
... A A LIST? That question seems hard to answer.
– user1086498
May 9 '13 at 20:09
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What guarantees are there on the run-time complexity (Big-O) of LINQ methods?
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answered May 9 '10 at 23:16
AaronaughtAaronaught
114k2323 gold badges247247 silver badges326326 bronze badges
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Using 'starts with' selector on individual class names
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answered Feb 1 '10 at 17:01
Josh StodolaJosh Stodola
76.3k4242 gold badges177177 silver badges220220 bronze badges
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Can you have if-then-else logic in SQL? [duplicate]
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106
You can make the following sql query
IF ((SELECT COUNT(*) FROM table1 WHERE project = 1) >...
How can I determine if a String is non-null and not only whitespace in Groovy?
...true too"
– tim_yates
Aug 27 '19 at 10:33
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show 2 more comments
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SHA1 vs md5 vs SHA256: which to use for a PHP login?
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110
Neither. You should use bcrypt. The hashes you mention are all optimized to be quick and easy o...
windows batch SET inside IF not working
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edited May 29 '18 at 10:08
JRA_TLL
77455 silver badges1919 bronze badges
answered Feb 1 '12 at 20:1...
For loop example in MySQL
...e procedure load_foo_test_data()
begin
declare v_max int unsigned default 1000;
declare v_counter int unsigned default 0;
truncate table foo;
start transaction;
while v_counter < v_max do
insert into foo (val) values ( floor(0 + (rand() * 65535)) );
set v_counter=v_counter+1;
en...
Programmatically find the number of cores on a machine
...CPU = sysinfo.dwNumberOfProcessors;
Linux, Solaris, AIX and Mac OS X >=10.4 (i.e. Tiger onwards)
int numCPU = sysconf(_SC_NPROCESSORS_ONLN);
FreeBSD, MacOS X, NetBSD, OpenBSD, etc.
int mib[4];
int numCPU;
std::size_t len = sizeof(numCPU);
/* set the mib for hw.ncpu */
mib[0] = CTL_HW;
mib[1...
