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Error executing command 'ant' on Mac OS X 10.9 Mavericks when building for Android with PhoneGap/Cor
Today I tried PhoneGap/Cordova with Mac OS X Mavericks . Building for iOS went just fine, but building for Android wasn't without some guesswork.
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Why doesn't django's model.save() call full_clean()?
...why django's orm doesn't call 'full_clean' on a model unless it is being saved as part of a model form.
6 Answers
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What do the numbers in a version typically represent (i.e. v1.9.0.1)?
Maybe this is a silly question, but I've always assumed each number delineated by a period represented a single component of the software. If that's true, do they ever represent something different? I'd like to start assigning versions to the different builds of my software, but I'm not really sure...
App Inventor 2 向心力实验App - 探究向心力F与角速度ω、半径r、质量m的关...
...心物理公式
公式含义F = m · r · ω²向心力a = r · ω² = v²/r向心加速度v = r · ω线速度T = 2π/ω = 2πr/v周期
需要探究的三个关系
关系固定量变量预期结论F vs ωm, r 固定ω 变化F ∝ ω²（二次函数）F vs rm, ω 固定r 变化F ∝ r（正...
How to convert std::string to NSString?
Hi I am trying to convert a standard std::string into an NSString but I'm not having much luck.
6 Answers
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How do you convert an entire directory with ffmpeg?
How do you convert an entire directory/folder with ffmpeg via command line or with a batch script?
24 Answers
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