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云数据及Firebase组件简介 · App Inventor 2 中文网
...。 例如，如果您使用 FirebaseDB 构建一个应用程序，然后修改该应用程序并重新构建它，则新应用程序仍将与旧应用程序共享值。 另一方面，如果更改项目名称，旧值将无法访问。 此外，如果其他开发人员使用您的应用程序源代...
Http Basic Authentication in Java using HttpClient?
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Have you tried this (using HttpClient version 4):
String encoding = Base64Encoder.encode(user + ":" + pwd);
HttpPost httpPost = new HttpPost("http://host:post/test/login");
httpPost.setHeader(HttpHeaders.AUTHORIZATION, "Basic " + encoding);
System.out.println("executing request " + httpPost.getR...
Link to all Visual Studio $ variables
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164
Try this MSDN page: Macros for Build Commands and Properties
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converting a base 64 string to an image and saving it
...with image.Save(...).
public Image LoadImage()
{
//data:image/gif;base64,
//this image is a single pixel (black)
byte[] bytes = Convert.FromBase64String("R0lGODlhAQABAIAAAAAAAAAAACH5BAAAAAAALAAAAAABAAEAAAICTAEAOw==");
Image image;
using (MemoryStream ms = new MemoryStream(bytes...
How to save a PNG image server-side, from a base64 data string
...nvert canvas drawings to PNG images.
What I need now is to turn those base64 strings that this tool generates, into actual PNG files on the server, using PHP.
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Why do we use Base64?
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Your first mistake is thinking that ASCII encoding and Base64 encoding are interchangeable. They are not. They are used for different purposes.
When you encode text in ASCII, you start with a text string and convert it to a sequence of bytes.
When you encode data in Base64, you sta...
Converting Secret Key into a String and Vice Versa
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You can convert the SecretKey to a byte array (byte[]), then Base64 encode that to a String. To convert back to a SecretKey, Base64 decode the String and use it in a SecretKeySpec to rebuild your original SecretKey.
For Java 8
SecretKey to String:
// create new key
SecretKey secretKey ...
VC的陷阱，看哪些条款会威胁到创业者的利益 - 资讯 - 清泛网 - 专注C/C++及内核技术
...上就不好，这时候，多和资方聊聊，对项目 BP 做出一些修改，资方也许会欣然抬价并达成交易。
这种情况下，你遇到了不错的投资人。珍惜这段合作关系。
当然，签订最简单的 termsheet 是理想情况，现实中并不一定能够如愿...
What is base 64 encoding used for?
I've heard people talking about "base 64 encoding" here and there. What is it used for?
18 Answers
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How do you load custom UITableViewCells from Xib files?
The question is simple: How do you load custom UITableViewCell from Xib files? Doing so allows you to use Interface Builder to design your cells. The answer apparently is not simple due to memory managment issues. This thread mentions the issue and suggests a solution, but is pre NDA-release and...