大约有 16,400 项符合查询结果(耗时:0.0241秒) [XML]
Apple Mach-O Linker Error when compiling for device
... upgraded to xcode 4.0 and I can no longer deploy to iPhone, I get a Apple Mach-O Linker Error, it still works for the simulator though.
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Cast int to varchar
...hat you can cast/convert data to:
select CAST(id as CHAR(50)) as col1
from t9;
select CONVERT(id, CHAR(50)) as colI1
from t9;
See the following SQL — in action — over at SQL Fiddle:
/*! Build Schema */
create table t9 (id INT, name VARCHAR(55));
insert into t9 (id, name) values (2, 'bob')...
serve current directory from command line
could someone give me a hint, howto serve the current directory from command line with ruby? it would be great, if i can have some system wide configuration (e.g. mime-types) and simply launch it from every directory.
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Where should I put the log4j.properties file?
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I know it's a bit late to answer this question, and maybe you already found the solution, but I'm posting the solution I found (after I googled a lot) so it may help a little:
Put log4j.properties under WEB-INF\classes of the project as mentioned previously in this thread.
P...
Starting Eclipse w/ Specific Workspace
Is there a way to start an instance of eclipse, passing it some sort of parameter telling it to use a specific workspace?
8...
What do linkers do?
I've always wondered. I know that compilers convert the code you write into binaries but what do linkers do? They've always been a mystery to me.
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How do I turn a python datetime into a string, with readable format date?
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The datetime class has a method strftime. The Python docs documents the different formats it accepts:
Python 2: strftime() Behavior
Python 3: strftime() Behavior
For this specific example, it would look something like:
my_datetime...
Inline SVG in CSS
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Yes, it is possible. Try this:
body { background-image:
url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10'><linearGradient id='gradient'><stop offset='10%' stop-color='%23F00'/><stop offset='90%' stop-col...
Spring Boot application as a Service
...Boot application packaged as executable jar as a Service in the Linux system? Is this recommended approach, or should I convert this app to war and install it into Tomcat?
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parseInt vs unary plus, when to use which?
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#Please see this answer for a more complete set of cases
Well, here are a few differences I know of:
An empty string "" evaluates to a 0, while parseInt evaluates it to NaN. IMO, a blank string should be a NaN.
+'' === 0; //true
isNaN...
