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求大佬解答 - App Inventor 2 拓展 - 清泛IT社区,为创新赋能!

这种情况是什么问题啊大概率是由于屏幕名称不符合要求,请提供一下aia具体看看。
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How do Trigonometric functions work?

...ation, you should NOT be using it. That goes for Taylor, Chebyshev, Padé, etc. series. Taylor series are often Good Enough. – kquinn Feb 7 '09 at 22:52 4 ...
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Encrypting & Decrypting a String in C# [duplicate]

... you to "muck about" with byte arrays, salts, keys, initialization vectors etc. but this is precisely the kind of detail that can be somewhat abstracted away within your "wrapper" class. The following class is one I wrote a while ago to perform exactly the kind of thing you're after, a simple singl...
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How can I delay a method call for 1 second?

... parts of the UI. My instinct is that it would also cause some unnecessary CPU or other resource drain, but I haven't checked. – Bjorn Roche Jun 3 '16 at 20:19 add a comment ...
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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple

...running the inner loop takes longer than that to fill the buffer, then the CPU will be the limiting factor. If the inner loop runs faster, then I/O will be the limiting factor, or at least there's some CPU time left over to do the real work. – Ben Voigt Dec 3 ...
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上班狗来算算 你离财务自由还差多少钱? - 杂谈 - 清泛网 - 专注C/C++及内核技术

...鸡冻呢~ 2。财务自由需要多少软妹币? 这是一个复杂的问题。胡润曾对财务自由的实现给出了一个数字——1亿元。他认为1亿元之后再多的钱就没有必要,说白了就是花不完了,“要想活得舒服,有一套别墅外加在市中心有一...
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Why is String.chars() a stream of ints in Java 8?

...l methods of java.lang.Character as well as StringBuilder.appendCodePoint, etc. This support exists since jdk1.5. – Holger Mar 18 '14 at 9:01 ...
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Something like 'contains any' for Java set?

...nd set2 are very large, this would be plenty more resource intensive (both CPU and memory wise) than just checking if they have any item in common. – Marxama Jun 9 at 9:08 add...
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【phpcms v9】PC站和手机站 全静态手机移动站方法 - 更多技术 - 清泛网 - ...

...据库,所以移动站调用的链接也是带www.的,要解决这个问题就用{str_replace(‘http://www.’,’http://m.’,$r[url])}这个方法,当然这个也是要灵活使用,例如:{str_replace(‘A’,’B’,C)},意思是如果C的内容中出...
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Set selected item of spinner programmatically

...e answer by Marco HC uses Runnable wich is a last resort due to additional CPU load. The answer is - you should simply choose correct place to call to setSelection(), for example it works for me: @Override public void onResume() { super.onResume(); yourSpinner.setSelection(pos); } But ...