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VIP会员中心 · App Inventor 2 中文网，少儿编程陪伴者
... 我家孩子在学校里学习编程已经有一段时间了，但是在App Inventor 2 中文网的少儿编程课程中，他真正掌握了如何将自己的创意变成实际的App。平台提供非常好的启蒙教育资源，非常适合孩子们。 ...
Eclipse reported “Failed to load JNI shared library” [duplicate]
...
First, ensure that your version of Eclipse and JDK match, either both 64-bit or both 32-bit (you can't mix-and-match 32-bit with 64-bit).
Second, the -vm argument in eclipse.ini should point to the java executable. See
http://wiki.eclipse.org/Eclipse.ini for examples.
If you're unsure of wha...
Secure random token in Node.js
...thod crypto.randomBytes that generates a random Buffer. However, the base64 encoding in node is not url-safe, it includes / and + instead of - and _ . Therefore, the easiest way to generate such token I've found is
...
What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
...at least 32 bits (2^31-1 on either side of zero) and long long is at least 64 (2^63-1 on either side).
– chris
Sep 24 '13 at 1:55
2
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Python base64 data decode
I have the following piece of base64 encoded data, and I want to use python base64 module to extract information from it. It seems that module does not work. Can anyone tell me how?
...
Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'
I'm trying to compile a python extension with cython in win 7 64-bit using mingw (64-bit).
I'm working with Python 2.6 (Active Python 2.6.6) and with the adequate distutils.cfg file (setting mingw as the compiler)
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Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
...2:00', '2013-05-18 13:00:00+02:00'],
dtype='datetime64[ns, Europe/Brussels]', freq='H')
using tz_localize(None) removes the timezone information resulting in naive local time:
In [6]: t.tz_localize(None)
Out[6]: DatetimeIndex(['2013-05-18 12:00:00', '2013-05-18 13:00:00'], ...
C# Stream流使用总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...息。有时，我们需要将程序中的一些数据存储到磁盘上或是读取配置文件中某些内容，在这里我们就会用该类。
从磁盘上的文件中读取内容：
FileStream file = File.Open(@"F:\file.txt", FileMode.Open); //初始化文件流
byte[] array = new byte[fi...
Openssl is not recognized as an internal or external command
...bin\openssl.exe" sha1 -binary | "C:\Users\abc\openssl\bin\openssl.exe" base64
Remember, path that you will enter will be the path where you have installed the openssl...hope this helps..:-)
Edit:
you can download openssl for windows 32 and 64 bit from the respective links below:
OpenSSL for 64 Bits...
Where Is Machine.Config?
...32-bit
%windir%\Microsoft.NET\Framework\[version]\config\machine.config
64-bit
%windir%\Microsoft.NET\Framework64\[version]\config\machine.config
[version] should be equal to v1.0.3705, v1.1.4322, v2.0.50727 or v4.0.30319.
v3.0 and v3.5 just contain additional assemblies to v2.0.50727 so the...