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rgdal package installation
...liam Kyngesburye at http://www.kyngchaos.com/ may be used for
source installs on OSX.
As you seem to be under Linux, you always build package from source, so you will have to install the corresponding libraries on your system. If you are under Mint, Ubuntu or another Debian derivative, you can d...
Unicode and UTF-8 - 综合 - 清泛IT论坛，有思想、有深度
...用双字节编码，可以快速对字符进行定位及计算，如一个文本文件，可以通过获得其文件大小/2即可计算得知包含的字符数。Java默认使用UTF-16 BE编码。那么为什么会出现utf-8呢：
1）、和ASCII码不兼容，而且不太好移植(Not Portable)...
Get Android API level of phone currently running my application [duplicate]
...ntly running my application? I am sure its simple but I can not find it as all my searches bring up tons of junk.
4 Answers...
How to get a time zone from a location using latitude and longitude coordinates?
... zone from a location. This community wiki is an attempt at consolidating all of the valid responses.
17 Answers
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Separation of business logic and data access in django
...de is confusing and, after a certain time, I cease to understand what is really happening.
10 Answers
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Where can I learn how to write C code to speed up slow R functions? [closed]
...ds C++ and Rcpp to be much more like writing R than writing C++. YMMV and all that.
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C# Stream流使用总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...r/TextWriter类主要用来处理流数据。它们分别提供了高效的文本流读取/写入功能。
读取与写入：
TextReader textReader = new StringReader("Hi 你好");//初始化读取流
TextWriter textWriter = new StringWriter();//初始化写入流
char[] c=new char[4096];
i...
App Inventor 2 FTP 客户端拓展：FTP协议连接、上传、下载、创建、修改目录...
... offsetY = e.clientY - element.offsetTop; return false; // 防止文本选中 }; // 鼠标移动时拖动元素 document.onmousemove = function(e) { if (!isDragging) return; element.style.left = (e.clientX - offsetX) + 'px'; element.style.top = (e....
Socket.IO - how do I get a list of connected sockets/clients?
I'm trying to get a list of all the sockets/clients that are currently connected.
26 Answers
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APP INVENTOR硬件交互学习教程06——硬件参数上报 - 创客硬件开发 - 清泛IT...
...状态给APP。
1.界面组件
增加两个标签，一个布局，一个文本输入框
2.程序逻辑
增加接收处理和显示判断
3.arduino nano代码
// 引脚定义
const int ledPin1 = 5;// the number of the LED pin
const int ledPin2 = 6;
const int ledP...