大约有 46,000 项符合查询结果(耗时:0.0509秒) [XML]

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How do I pass command-line arguments to a WinForms application?

... static void Main(string[] args) { // For the sake of this example, we're just printing the arguments to the console. for (int i = 0; i < args.Length; i++) { Console.WriteLine("args[{0}] == {1}", i, args[i]); } } The arguments w...
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Why does Convert.ToString(null) return a different value if you cast null?

... There are 2 overloads of ToString that come into play here Convert.ToString(object o); Convert.ToString(string s); The C# compiler essentially tries to pick the most specific overload which will work with the input. A null value is convertible to a...
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Split string based on regex

What is the best way to split a string like "HELLO there HOW are YOU" by upper case words (in Python)? 3 Answers ...
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The 'packages' element is not declared

... <xs:complexType> <xs:attribute name="id" type="xs:string" use="required" /> <xs:attribute name="version" type="xs:string" use="required" /> <xs:attribute name="targetFramework" type="xs:string" use="optional" /> <xs:attri...
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How do I detect what .NET Framework versions and service packs are installed?

...for: "Install"=dword:00000001 except for .NET 1.0, where the value is a string (REG_SZ) rather than a number (REG_DWORD). Determining the service pack level follows a similar pattern: Framework Version Registry Key ------------------------------------------------------------------------------...
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What is the best collation to use for MySQL with PHP? [closed]

...QL (most currently distributed versions) where functions always return the string using utf8_general_ci, causing problems if you're using another collation for your strings - see bugs.mysql.com/bug.php?id=24690 – El Yobo Feb 9 '11 at 10:49 ...
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Serializing a list to JSON

...(or whatever object you want) with the following: using Newtonsoft.Json; string json = JsonConvert.SerializeObject(listTop10); Update: you can also add it to your project via the NuGet Package Manager (Tools --> NuGet Package Manager --> Package Manager Console): PM> Install-Package Ne...
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Interpolating a string into a regex

I need to substitute the value of a string into my regular expression in Ruby. Is there an easy way to do this? For example: ...
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throw Error('msg') vs throw new Error('msg')

...!(this instanceof Array)) { return new Array(arguments); }. (But note that String(x) and new String(x) are very different, and likewise for Number and Boolean.) That said, in case of an error, it's not even required to throw an Error object... throw 'Bad things happened'; will work, tooYou can even...
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How can I get column names from a table in SQL Server?

... Qbik "N" if for handlling unicode string like varchar in ANSI(32bit) and nvarchar in unicode(64bit) – thatsalok Jun 25 '14 at 12:36 9 ...