大约有 43,000 项符合查询结果（耗时：0.0727秒） [XML]
Can not connect to local PostgreSQL
... the permissions on the socket file and its directories /var and /var/pgsql_socket. Your Rails app (OSX user) must have execute (x) permissions on these directories (preferably grant everyone permissions) and the socket should have full permissions (wrx). You can use ls -lAd <file> to check t...
How to validate IP address in Python? [duplicate]
...
Don't parse it. Just ask.
import socket
try:
socket.inet_aton(addr)
# legal
except socket.error:
# Not legal
share
|
improve this answer
|
follow
...
How can I pad an int with leading zeros when using cout
...ename.fill('0'); filename.width(5); filename<<std::to_string(i);
– Prince Patel
Feb 25 '19 at 16:14
|
show 2 more comm...
Setting Vim whitespace preferences by filetype
...iliar with scripting vim then jump to :help 41.11, otherwise read :help usr_40 and :help usr_41.
share
|
improve this answer
|
follow
|
...
In C++, is it still bad practice to return a vector from a function?
... Guidelines.
Let's compare:
std::vector<int> BuildLargeVector1(size_t vecSize) {
return std::vector<int>(vecSize, 1);
}
with:
void BuildLargeVector2(/*out*/ std::vector<int>& v, size_t vecSize) {
v.assign(vecSize, 1);
}
Now, suppose we need to call these methods ...
How to handle multiple heterogeneous inputs with Logstash?
...ed. I opened a ticket in Elastic and they recommended me to use tags or add_field instead of type
– BornToCode
Jun 18 '17 at 15:05
...
C# Entity-Framework: How can I combine a .Find and .Include on a Model Object?
...kes an optional collection of Expression<Func<T,object>> (e.g. _repo.GetById(id, x => x.MyCollection))
– Derek Greer
Jul 17 '15 at 16:20
4
...
How can I merge properties of two JavaScript objects dynamically?
...bj2
* @returns obj3 a new object based on obj1 and obj2
*/
function merge_options(obj1,obj2){
var obj3 = {};
for (var attrname in obj1) { obj3[attrname] = obj1[attrname]; }
for (var attrname in obj2) { obj3[attrname] = obj2[attrname]; }
return obj3;
}
...
How do I break out of a loop in Perl?
...
Also, works the same for while() loops. my @array = ("_", "apple", "orange"); my $thing; while ($thing = shift @array){ last if $thing =~ /[A-Za-z]/; } print($thing); # "apple"
– HoldOffHunger
Jul 17 '18 at 19:06
...
How to allow http content within an iframe on a https site
...tp://insecurepage.com
If you simply download remote site content via file_get_contents or similiar, you can still have insecure links to content. You'll have to find them with regex and also replace. Images are hard to solve, but Ï found workaround here: http://foundationphp.com/tutorials/image_p...