大约有 45,000 项符合查询结果(耗时:0.0527秒) [XML]
Running Python on Windows for Node.js dependencies
...THON=%PYTHON%;D:\Python
First, you're setting PYTHON to ;D:\Python. That extra semicolon is fine for a semicolon-separated list of paths, like PATH or PYTHONPATH, but not for a single value like PYTHON. And likewise, adding a new value to the existing value is what you want when you want to add an...
What happens if you call erase() on a map element while iterating from begin to end?
...ng erase. At this point it is too late and is already invalidated.
map<string, SerialdMsg::SerialFunction_t>::iterator pm_it = port_map.begin();
while(pm_it != port_map.end())
{
if (pm_it->second == delete_this_id)
{
port_map.erase(pm_it++); // Use iterator.
...
Sort objects in an array alphabetically on one property of the array
...
@BenBarreth there is no reason to lower-case the strings. the whole point of localeCompare is to shunt the work of managing sort logic and locale quirks to the system. If doing a case-insensitive sort is normal for the locale, as it is in english, this will be done for you:...
Why can't I use a list as a dict key in python?
...)
as explained by others here, indeed you cannot. You can however use its string representation instead if you really want to use your list.
share
|
improve this answer
|
fo...
完美解决phpcms批量移动内容后,新闻心情、评论排行等不更新的问题 - 更多...
... $tree->init($categorys);
$string .= $tree->get_tree(0, $str);
$str = "<option value='\$catid'>\$spacer \$catname</option>";
$source_string = '';
$tree->init($categorys);
...
Pass a PHP array to a JavaScript function [duplicate]
...y); ?>, ...)
In cases where you need to parse out an object from JSON-string (like in an AJAX request), the safe way is to use JSON.parse(..) like the below:
var s = "<JSON-String>";
var obj = JSON.parse(s);
sha...
Is it possible to have two partial classes in different assemblies represent the same class?
...pace MyProject.Data.BusinessObjects
{
public class Person
{
public string Name {get; set;}
public string Surname {get; set;}
public string Details {get; set;}
}
}
Display Layer (web application) PersonExtensions.cs:
using Data.BusinessObjects
namespace MyProject.Admin.Extensions...
Unit testing of private methods [duplicate]
...X has a lot of code in the private member functions then it might be worth extracting a new class Y which is used by the implementation of class X. This new class Y can then be tested through its public interface, without exposing its use to the clients of class X.
...
Sending a message to nil in Objective-C
...ethods all return 0 when you've got a nil value, so you do not have to add extra checks for nil all over:
if ( [myString length] > 0 )
or this:
return [myArray count]; // say for number of rows in a table
share
...
Is Redis just a cache?
...e, Redis lets you operate on the values. There are 5 data types in Redis - Strings, Sets, Hash, Lists and Sorted Sets. Each data type exposes various operations.
The best way to understand Redis is to model an application without thinking about how you are going to store it in a database.
Lets sa...