大约有 40,000 项符合查询结果（耗时：0.0434秒） [XML]
ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...
My sphinx.conf
source post_source
{
type = mysql
sql_host = localhost
sql_user = ***
sql_pass = ***
sql_db = ***
sql_port = 3306
sql_query_pre = SET NAMES utf8
# query before fetching rows to index
sql_query =...
What is the result of % in Python?
... Can you please explain why -11%5 = 4 ??
– dahiya_boy
Jul 17 '19 at 9:02
@dahiya_boy I've added GvR's explanation ...
How do I delete an Azure storage account containing a leased blob?
... to use the portal. kieselmediagroup.blob.core.windows.net/misc/2012-08-21_1019.png
– Jason
Aug 21 '12 at 17:31
...
How do I print the type of a variable in Rust?
...p.
For example, set the variable to a type which doesn't work:
let mut my_number: () = 32.90;
// let () = x; would work too
error[E0308]: mismatched types
--> src/main.rs:2:29
|
2 | let mut my_number: () = 32.90;
| ^^^^^ expected (), found floating-point n...
MySql Table Insert if not exist otherwise update
... if an existing row is set to its current values. If you specify the CLIENT_FOUND_ROWS flag to mysql_real_connect() when connecting to mysqld, the affected-rows value is 1 (not 0) if an existing row is set to its current values...
...
Detect backspace in empty UITextField
...yTextField
- (void)deleteBackward {
[super deleteBackward];
if ([_myDelegate respondsToSelector:@selector(textFieldDidDelete)]){
[_myDelegate textFieldDidDelete];
}
}
@end
Now simply add MyTextFieldDelegate to your UIViewController and set your UITextFields myDelegate to sel...
What is an xs:NCName type and when should it be used?
...Name with the regex: "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_][\\w\\.\\-\\d]*". That means. the value should start with a letter or underscore and then contains of words, dots, dashes, underscores, digits. You can try it at: regexr.com
– Naxos84
...
How do I provide JVM arguments to VisualVM?
I'm using VisualVM from JDK 1.6.0_26 to profile a Java webapp running under Tomcat, but VisualVM often tells me that it doesn't have enough memory to take a snapshot, and to use the -Xmx switch to provide more memory to Netbeans. The problem is, I'm running VisualVM outside of Netbeans, so how can I...
How to fix bower ECMDERR
...n .bowerrc to get rid of the err ETIMEDOUT :
{
"directory": "app/bower_components",
"proxy": "http://PROXYSERVER:PORT",
"https-proxy": "https://PROXYSERVER:PORT",
"strict-ssl": false
}
And this one to get rid of ECMDERR :
git config --global http.proxy http://USER:PASSWORD@PROXYS...
Should switch statements always contain a default clause?
...an return within the enum case rather than break.
enum SomeEnum
{
ENUM_1,
ENUM_2,
// More ENUM values may be added in future
};
int foo(SomeEnum value)
{
switch (value)
{
case ENUM_1:
return 1;
case ENUM_2:
return 2;
}
// handle invalid values he...