大约有 31,100 项符合查询结果（耗时：0.0542秒） [XML]
How to get a value from a cell of a dataframe?
I have constructed a condition that extract exactly one row from my data frame:
11 Answers
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How to check whether a file or directory exists?
I want to check the existence of file ./conf/app.ini in my Go code,
but I can't find a good way to do that.
5 Answers
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RedirectToAction with parameter
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@Diego: yes, there's are a couple overloads for that. In my example it would be RedirectToAction("Action", "Controller", new{id=99}) msdn.microsoft.com/en-us/library/dd470154.aspx
– Kurt Schindler
May 27 '11 at 13:32
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REST API error return good practices [closed]
...ST API. I'm working on a new API so I can take it any direction right now. My content type is XML at the moment, but I plan to support JSON in future.
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How to loop through all enum values in C#? [duplicate]
...(typeof(Foos)).Cast<Foos>();
I long ago added a helper function to my private library for just such an occasion:
public static class EnumUtil {
public static IEnumerable<T> GetValues<T>() {
return Enum.GetValues(typeof(T)).Cast<T>();
}
}
Usage:
var value...
The Android emulator is not starting, showing “invalid command-line parameter”
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I've tried this and it's still not working on my 32 bit Windows 7 machine. My SDK is in the following path D:\Program Files\Android\android-sdk and I've put the following in my SKD location path in eclipse but with no luck. D:\PROGRA~1\Android\ANDROI~1
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Microsoft Azure: How to create sub directory in a blob container
...appen if you need to rename a "folder"?).
As a general rule, I would keep my files as flat as possible in a container, and have my application manage whatever structure I want to expose to the end users (for example manage a nested folder structure in my database, have a record for each file, refer...
How to create composite primary key in SQL Server 2008
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create table my_table (
column_a integer not null,
column_b integer not null,
column_c varchar(50),
primary key (column_a, column_b)
);
share...
Java generics T vs Object
...y the methods of Object.
But with context - if you have a generic class:
MyClass<Foo> my = new MyClass<Foo>();
Foo foo = new Foo();
Then:
Foo newFoo = my.doSomething(foo);
Same code with object
Foo newFoo = (Foo) my.doSomething(foo);
Two advantages:
no need of casting (the co...
What is the “right” way to iterate through an array in Ruby?
...h.keys.sort
puts "hash[#{key.inspect}] = #{hash[key].inspect}"
end
So, my answer is, "The “right” way to iterate through an array in Ruby depends on you (i.e. the programmer or the programming team) and the project.". The better Ruby programmer makes the better choice (of which syntactic po...