大约有 42,000 项符合查询结果(耗时:0.0350秒) [XML]

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Why can't I initialize non-const static member or static array in class?

Why can't I initialize non-const static member or static array in a class? 5 Answers ...
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Using a Single Row configuration table in SQL Server database. Bad idea?

In developing a shopping cart application I've found that I needed to save settings and configurations based on the administrator's preferences and requirements. This information can be anything from company information, Shipping account IDs, PayPal API keys, notification preferences, etc. ...
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How to sort an array of integers correctly

Trying to get the highest and lowest value from an array that I know will contain only integers seems to be harder than I thought. ...
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Should I use a data.frame or a matrix?

When should one use a data.frame , and when is it better to use a matrix ? 6 Answers ...
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When should I use a struct instead of a class?

MSDN says that you should use structs when you need lightweight objects. Are there any other scenarios when a struct is preferable over a class? ...
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When should I use a struct rather than a class in C#?

When should you use struct and not class in C#? My conceptual model is that structs are used in times when the item is merely a collection of value types . A way to logically hold them all together into a cohesive whole. ...
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Detect if a NumPy array contains at least one non-numeric value?

I need to write a function which will detect if the input contains at least one value which is non-numeric. If a non-numeric value is found I will raise an error (because the calculation should only return a numeric value). The number of dimensions of the input array is not known in advance - the fu...
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Are duplicate keys allowed in the definition of binary search trees?

I'm trying to find the definition of a binary search tree and I keep finding different definitions everywhere. 12 Answers ...
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Why is semicolon allowed in this python snippet?

Python does not warrant the use of semicolons to end statements. So why is this (below) allowed? 15 Answers ...
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Chrome, Javascript, window.open in new tab

In chrome this opens in a new tab: 8 Answers 8 ...