大约有 35,565 项符合查询结果（耗时：0.0442秒） [XML]
Python function global variables?
...
edited Feb 28 '15 at 16:40
Cristian Ciupitu
17.3k77 gold badges4646 silver badges6868 bronze badges
ans...
Best way to do multi-row insert in Oracle?
...nsert into pager (PAG_ID,PAG_PARENT,PAG_NAME,PAG_ACTIVE)
select 8000,0,'Multi 8000',1 from dual
union all select 8001,0,'Multi 8001',1 from dual
The thing to remember here is to use the from dual statement.
(source)
...
Prevent direct access to a php include file
...
answered Jan 3 '09 at 18:14
ChuckChuck
218k2929 gold badges286286 silver badges381381 bronze badges
...
Create subdomains on the fly with .htaccess (PHP)
...ch as *.example.org. A wildcard entry looks like this:
*.example.org. 3600 A 127.0.0.1
2. Include the wildcard in vhost
Next up in the Apache configuration you need to set up a vhost container that specifies the wildcard in the ServerAlias DOCs directive. An example vhost container:
<Vir...
Howto: Clean a mysql InnoDB storage engine?
...lib/mysql_grants
Login to mysql and run SET GLOBAL innodb_fast_shutdown = 0; (This will completely flush all remaining transactional changes from ib_logfile0 and ib_logfile1)
Shutdown MySQL
Add the following lines to /etc/my.cnf (or my.ini on Windows)
[mysqld]
innodb_file_per_table
innodb_flush_me...
javascript scroll event for iPhone/iPad?
...
|
edited Jun 30 '17 at 17:07
Cœur
29.9k1515 gold badges166166 silver badges214214 bronze badges
...
Detecting endianness programmatically in a C++ program
...n(void)
{
union {
uint32_t i;
char c[4];
} bint = {0x01020304};
return bint.c[0] == 1;
}
The principle is equivalent to the type case as suggested by others, but this is clearer - and according to C99, is guaranteed to be correct. gcc prefers this compared to the dire...
What is the difference between visibility:hidden and display:none?
...
1509
display:none means that the tag in question will not appear on the page at all (although you ca...
Can you use a trailing comma in a JSON object?
...ue, so you end up with code that looks like this:
s.append("[");
for (i = 0; i < 5; ++i) {
if (i) s.append(","); // add the comma only if this isn't the first entry
s.appendF("\"%d\"", i);
}
s.append("]");
That extra one line of code in your for loop is hardly expensive...
Another alterna...
How to make a div 100% height of the browser window
...e use of vh: 1vh is equal to 1% of the viewport's height. That is to say, 100vh is equal to the height of the browser window, regardless of where the element is situated in the DOM tree:
HTML
<div></div>
CSS
div {
height: 100vh;
}
This is literally all that's needed. Here is a...