大约有 31,500 项符合查询结果(耗时:0.0335秒) [XML]

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Count the items from a IEnumerable without iterating?

... I usually just grab List and IList out of habit. But especially if you want to implement them yourself ICollection is easier and also has the Count property. Thanks! – Mendelt Oct 3 '08 at 22...
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How can I change an element's text without changing its child elements?

I'd like to update element's text dynamically: 14 Answers 14 ...
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Why isn't String.Empty a constant?

...ing.cs. The Empty constant holds the empty string value. We need to call the String constructor so that the compiler doesn't mark this as a literal. Marking this as a literal would mean that it doesn't show up as a field which we can access from native. I found this informati...
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Reverse Range in Swift

...o:0,by:-1) { print(i) } // 5 4 3 2 1 Update For latest Swift 2 First of all, protocol extensions change how reverse is used: for i in (1...5).reverse() { print(i) } // 5 4 3 2 1 Stride has been reworked in Xcode 7 Beta 6. The new usage is: for i in 0.stride(to: -8, by: -2) { print(i) } // 0 -2...
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Retargeting solution from .Net 4.0 to 4.5 - how to retarget the NuGet packages?

...ers a feature that makes this a lot simpler: just do update-package -reinstall -ignoreDependencies from the Package Manager Console. NuGet 2.0 doesn't handle re-targeting your applications very well. In order to change your packages' target frameworks, you must uninstall and reinstall the packages...
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Java: Subpackage visibility?

...s others have explained, there is no such thing as a "subpackage" in Java: all packages are isolated and inherit nothing from their parents. An easy way to access protected class members from another package is to extend the class and override the members. For instance, to access ClassInA in packa...
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Type or namespace name does not exist [closed]

...ata Service project built with Visual Studio 2010, which was working fine. All of a sudden, it didn't compile anymore. It was giving me messages like: ...
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Decimal number regular expression, where digit after decimal is optional

...r); \d* - 0 or more digits (the decimal part); $ - End of the line. This allows for .5 decimal rather than requiring the leading zero, such as 0.5 share | improve this answer | ...
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Print current call stack from a method in Python code

In Python, how can I print the current call stack from within a method (for debugging purposes). 7 Answers ...
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Should I impose a maximum length on passwords?

...t assume the worst and expect that this site is storing your password literally (i.e. not hashed, as explained by epochwolf). In that that is the case: Avoid using this site like the plague if possible. They obviously know nothing about security. If you truly must use the site, make sure your pas...