大约有 23,000 项符合查询结果(耗时:0.0173秒) [XML]

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Firebase Storage How to store and Retrieve images [closed]

How to store and view images on firebase? 6 Answers 6 ...
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Very large matrices using Python and NumPy

...L-like GROUP BY aggregation at 1,000,000 rows/second. Not bad for a Python-based solution! Accessing the data as a NumPy recarray again is as simple as: data = table[row_from:row_to] The HDF library takes care of reading in the relevant chunks of data and converting to NumPy. ...
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Encrypting & Decrypting a String in C# [duplicate]

...votes, I've updated it to fix silly bugs and to generally improve the code based upon comments and feedback. See the end of the post for a list of specific improvements. As other people have said, Cryptography is not simple so it's best to avoid "rolling your own" encryption algorithm. You can, h...
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Get data from file input in JQuery

I actually have a file input and I would like to retrieve the Base64 data of the file. 7 Answers ...
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App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

...一个实用性较强的健康类软件或对“健身宝”进行进一步拓展以实现一个具有完整功能的健身宝程序。【参考资源】【参一】微数据库   微数据库(TinyDB)是一个非可视组件,用来保存程序中的数据。   用App Inventor创建...
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Different floating point result with optimization enabled - compiler bug?

...finite precision, or if you were working with a device that used a decimal-based rather than binary-based floating point representation. But, you aren't. Most computers use the binary IEEE floating point standard. As Maxim Yegorushkin already noted in his answer, part of the problem is that intern...
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Missing include “bits/c++config.h” when cross compiling 64 bit program on 32 bit in Ubuntu

...it version of Ubuntu 10.10 and trying to cross compile to a 64 bit target. Based on my research, I have installed the g++-multilib package. ...
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Swift Beta performance: sorting arrays

... static const uint64_t NANOS_PER_SEC = 1000ULL * NANOS_PER_MSEC; mach_timebase_info_data_t timebase_info; uint64_t abs_to_nanos(uint64_t abs) { if ( timebase_info.denom == 0 ) { (void)mach_timebase_info(&timebase_info); } return abs * timebase_info.numer / timebase_info.de...
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Simplest two-way encryption using PHP

... Since PHP 7 the mcrypt function is remove from php codebase. So when using the latest version of php (which should be standard) you are not able to use this deprecated function anymore. – Alexander Behling Sep 12 '19 at 13:09 ...
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64-bit version of Boost for 64-bit windows

... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers. Draft saved Draft discarded ...