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How to create a self-signed certificate for a domain name for development?
...All kudos for this solution to Mike O'Brien for his excellent blog post at http://www.mikeobrien.net/blog/creating-self-signed-wildcard
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Microbit LED 矩阵 · App Inventor 2 中文网
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Microbit LED 矩阵
Microbit_LED 扩展程序让 App Inventor 用户能够以编程方式更改 BBC micro:bit 的 5x5 LED 矩阵，方法是编写自定义图案或输入文本字符串。显示屏的滚动速度也可以自定义。
更多链接：
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pretty-print JSON using JavaScript
...or sure) and not HTML. Output can be seen inside console. You can edit the _variables inside the function adding some more styling.
function JSONstringify(json) {
if (typeof json != 'string') {
json = JSON.stringify(json, undefined, '\t');
}
var
arr = [],
_stri...
How can I use pointers in Java?
...leo = new Lion();
Tiger tony = (Tiger)leo; // Always illegal and caught by compiler.
Animal whatever = new Lion(); // Legal.
Tiger tony = (Tiger)whatever; // Illegal, just as in previous example.
Lion leo = (Lion)whatever; // Legal, object whatever really is a Lion.
Pointers in C:
void main()...
乐高 NXT 对照篇 - 上一代砖头怎么用 · App Inventor 2 中文网
... EV3 实验01 第 1 步一字不差，直接照抄：
when 列表选择器_设备.BeforePicking() {
列表选择器_设备.Elements = 蓝牙客户端1.AddressesAndNames
}
when 列表选择器_设备.AfterPicking() {
if 蓝牙客户端1.Connect(列表选择器_设备.Selection) {
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Is there a simple way to convert C++ enum to string?
...to check out GCCXML.
Running GCCXML on your sample code produces:
<GCC_XML>
<Namespace id="_1" name="::" members="_3 " mangled="_Z2::"/>
<Namespace id="_2" name="std" context="_1" members="" mangled="_Z3std"/>
<Enumeration id="_3" name="MyEnum" context="_1" location="f0:...
Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error
...uild Setting -> Linking -> Other Linker Flags -> Add -lLibraryName_$(PLATFORM_NAME)d for Debug, and add -lLibraryName_$(PLATFORM_NAME) for Release
– George
Nov 3 '13 at 15:55
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App Inventor 2 CirculBar 扩展：在图像组件上绘制自定义圆形进度条 · App Inventor 2 中文网
... 说明
图像组件
component
要绘制圆形进度条的 Image 组件
进度值
number
进度百分比值，如 50 表示 50%
文字颜色
color
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how to rotate a bitmap 90 degrees
...ntentView(linLayout);
}
}
You can also check this link for details : http://www.anddev.org/resize_and_rotate_image_-_example-t621.html
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.gitignore all the .DS_Store files in every folder and subfolder
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I think the problem you're having is that in some earlier commit, you've accidentally added .DS_Store files to the repository. Of course, once a file is tracked in your repository, it will continue to be tracked even if it matches an entry in an applicable .gitignore file.
You hav...