大约有 7,000 项符合查询结果（耗时：0.0153秒） [XML]
Quick unix command to display specific lines in the middle of a file?
...pt method 3 to use a range instead of a single line, but I'm afraid my sed-foo isn't up to the task.
– Xiong Chiamiov
Jul 7 '13 at 17:44
9
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change text of button and disable button in iOS
...tton *button = …;
[button setEnabled:NO]; // disables
[button setTitle:@"Foo" forState:UIControlStateNormal]; // sets text
See the documentation for UIButton.
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log4j configuration via JVM argument(s)?
...lass instead of the properties or xml file.
-Dlog4j.configuratorClass=com.foo.BarConfigurator
See http://logging.apache.org/log4j/1.2/manual.html for details.
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Sqlite primary key on multiple columns
...good practice for
all multi-column primary keys in any DBMS.
create table foo
(
fooint integer not null
,foobar string not null
,fooval real
,primary key (fooint, foobar)
)
;
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impro...
How to convert float to int with Java
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use either/or... (int)foo is simpler.
– yuttadhammo
Jul 12 '12 at 9:39
31
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Create directory if it does not exist
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For the lazy, there is a shorthand: md -Force c:\foo\bar\baz
– Matthew Fellows
Dec 18 '14 at 11:36
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How does JavaScript .prototype work?
...s Parent.prototype.
Finally, if you create a new object via Object.create(foo), the resulting object's [[Prototype]] will be set to foo.
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How do I get a list of all subdomains of a domain? [closed]
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The hint (using axfr) only works if the NS you're querying (ns1.foo.bar in your example) is configured to allow AXFR requests from the IP you're using; this is unlikely, unless your IP is configured as a secondary for the domain in question.
Basically, there's no easy way to do it if you...
Difference between java.io.PrintWriter and java.io.BufferedWriter?
...ntWriter out =
new PrintWriter(new BufferedWriter(new FileWriter("foo.out")));
will buffer the PrintWriter's output to the file. Without buffering, each invocation of a print() method would cause characters to be converted into bytes that would then be written immediately to the file, whic...
Get names of all keys in the collection
...ng collection so as to find all the keys:
db[mr.result].distinct("_id")
["foo", "bar", "baz", "_id", ...]
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