大约有 45,000 项符合查询结果（耗时：0.1102秒） [XML]
Default string initialization: NULL or Empty? [closed]
...may not be changed, for example, a user's middle name.
NULL when it is an error if the ensuing code does not set the value explicitly.
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Set a persistent environment variable from cmd.exe
...t Case action
Case "ls"
WScript.Echo wui
Case "del"
On Error Resume Next
wu.remove(vary)
On Error Goto 0
Case "set"
wu.Item(vary) = value
Case "add"
If wui = "" Then
wu.Item(vary) = value
ElseIf InStr(UCase(";" & wui & ";"), U...
Can I use my existing git repo with openshift?
...
You have an error. You can have multiple repositories, but they both can't be named "origin". They must be unique, like: origin and origin2
– Eric P
Sep 22 '15 at 13:07
...
Servlet for serving static content
... }
catch (IllegalArgumentException e) {
response.sendError(HttpServletResponse.SC_BAD_REQUEST);
return;
}
if (resource == null) {
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
String fileNam...
How do I save and restore multiple variables in python?
...this specific to 3.4+? I almost voted the answer down because it generates errors when you don't use 'b'.
– Wilmer E. Henao
Jun 27 '16 at 20:22
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A definitive guide to API-breaking changes in .NET
...LL, but also use a newer version of the Foo DLL. It breaks with a strange error, or at least it did for me in libraries I have developed before.
– Jeremy
Jun 7 '16 at 20:39
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How do I make an attributed string using Swift?
...offeeTypeFaceAttributes) When I set my UILabel.text = coffeeText I get an error "NSMutableAttributedString is not convertable to 'String'. Is there a way to make the UILabel accept NSMutableAttributedString?
– dcbenji
Jul 10 '14 at 4:25
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Best way to allow plugins for a PHP application
...();
$args = func_get_args();
if($num_args < 2)
trigger_error("Insufficient arguments", E_USER_ERROR);
// Hook name should always be first argument
$hook_name = array_shift($args);
if(!isset($listeners[$hook_name]))
return; // No plugins have registered this ...
When I catch an exception, how do I get the type, file, and line number?
...
import sys, os
try:
raise NotImplementedError("No error")
except Exception as e:
exc_type, exc_obj, exc_tb = sys.exc_info()
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
print(exc_type, fname, exc_tb.tb_lineno)
...
REST API Best practices: Where to put parameters? [closed]
...tend to be easier to put in the query string.
If you want to return a 404 error when the parameter value does not correspond to an existing resource then I would tend towards a path segment parameter. e.g. /customer/232 where 232 is not a valid customer id.
If however you want to return an empty l...