大约有 22,000 项符合查询结果(耗时:0.0240秒) [XML]

https://stackoverflow.com/ques... 

INSERT with SELECT

... 22 and '22' should not matter to sql, but I put a string in case that the field is similar to an unique identifier. – Dumitrescu Bogdan Mar 22 '11 at 12:54 ...
https://stackoverflow.com/ques... 

What does the @ symbol represent in objective-c?

...@ symbol. It is used in different scenarios, for example at the start of a string or to synthesise accessor methods. 4 Ans...
https://stackoverflow.com/ques... 

keytool error :java.io.IoException:Incorrect AVA format

...on at all. This was corrected by setting the option to a validly formatted string. this command failed with the AVA format exception: (line breaks added for legibility) C:\Program Files\Java\jdk1.6.0_45\jre\bin>keytool -genkey -v -dname PatrickTaylor -validity 10000 -keystore C:\drops\patrick...
https://stackoverflow.com/ques... 

Floating point vs integer calculations on modern hardware

...application. If you are developing for the x86 architecture, and you need extra performance, you might want to look into using the SSE extensions. This can greatly speed up single-precision floating point arithmetic, as the same operation can be performed on multiple data at once, plus there is a ...
https://stackoverflow.com/ques... 

Is it possible to implement a Python for range loop without an iterator variable?

...'myapplication') _ = gettext.gettext # ... print _('This is a translatable string.') share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

Regular expression for exact match of a string

...he title of the question is misleading; he's trying to make sure two whole strings are exactly the same. Also, \w matches digits as well as letters, so [\w\d] is redundant. – Alan Moore Apr 17 '14 at 2:54 ...
https://stackoverflow.com/ques... 

Getting a structural type with an anonymous class's methods from a macro

...an instance of a structural type with the named member. */ def bar(name: String): Any = macro bar_impl def bar_impl(c: Context)(name: c.Expr[String]) = { import c.universe._ val anon = TypeName(c.freshName) // next week, val q"${s: String}" = name.tree val Literal(Constant(s: St...
https://stackoverflow.com/ques... 

How can you make a custom keyboard in Android?

...he key is pressed. See keyOutputText if you want to input a longer Unicode string. keyLabel: This is the text that is displayed on the key. keyEdgeFlags: This indicates which edge the key should be aligned to. isRepeatable: If you hold down the key it will keep repeating the input. method.xml Th...
https://stackoverflow.com/ques... 

Fastest way to copy file in node.js

...eReadStream/createWriteStream method working for some reason, but using fs-extra npm module it worked right away. I am not sure of the performance difference though. fs-extra npm install --save fs-extra var fs = require('fs-extra'); fs.copySync(path.resolve(__dirname,'./init/xxx.json'), 'xxx.jso...
https://stackoverflow.com/ques... 

sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and t

I cannot figure out why this is giving me the error, The actual string I am trying to insert is 74 chars long, it's: "/gifs/epic-fail-photos-there-i-fixed-it-aww-man-the-tire-pressures-low.gif" ...