大约有 23,000 项符合查询结果(耗时:0.0350秒) [XML]

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How do I get a substring of a string in Python?

Is there a way to substring a string in Python, to get a new string from the third character to the end of the string? 13 A...
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What is the difference between HashSet and List?

...ples, You can not use HashSet like in the following example. HashSet<string> hashSet1 = new HashSet<string>(){"1","2","3"}; for (int i = 0; i < hashSet1.Count; i++) Console.WriteLine(hashSet1[i]); hashSet1[i] would produce an error: Cannot apply indexing with [] to an exp...
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Find a value in an array of objects in Javascript [duplicate]

...n an array of named objects, and I need to get the object where "name" is "string 1". Here is an example array. 20 Answers ...
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Python's many ways of string formatting — are the older ones (going to be) deprecated?

Python has at least six ways of formatting a string: 5 Answers 5 ...
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How to make sure that string is valid JSON using JSON.NET

I have a raw string. I just want to validate whether the string is valid JSON or not. I'm using JSON.NET. 11 Answers ...
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Determine if a String is an Integer in Java [duplicate]

I'm trying to determine if a particular item in an Array of strings is an integer or not. 9 Answers ...
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Index (zero based) must be greater than or equal to zero

... Your second String.Format uses {2} as a placeholder but you're only passing in one argument, so you should use {0} instead. Change this: String.Format("{2}", reader.GetString(0)); To this: String.Format("{0}", reader.GetString(2)); ...
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How can I String.Format a TimeSpan object with a custom format in .NET?

What is the recommended way of formatting TimeSpan objects into a string with a custom format? 19 Answers ...
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String isNullOrEmpty in Java? [duplicate]

...ries (including apache/google/...), a static isNullOrEmpty() method for Strings ? 10 Answers ...
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Remove characters except digits from string using Python?

How can I remove all characters except numbers from string? 15 Answers 15 ...