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联网 App 第 1 课：连通测试，把一句话存到服务器再读回来（附 .aia 源码）...
...库：共 0 条，图片 0 张」。
下载 NetHello.aia，在 App Inventor 里「项目 → 导入项目」，连上 AI 伴侣。
想自己从空白项目搭，就照下面的步骤做；直接导入的同学可以对照着看懂每一块。
第一步：界面
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How do I clone a single branch in Git?
I have a local Git repository called 'skeleton' that I use for storing project skeletons. It has a few branches, for different kinds of projects:
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TypeLoadException says 'no implementation', but it is implemented
I've got a very weird bug on our test machine. The error is:
38 Answers
38
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Http Basic Authentication in Java using HttpClient?
...ttpPost("http://host:post/test/login");
httpPost.setHeader(HttpHeaders.AUTHORIZATION, "Basic " + encoding);
System.out.println("executing request " + httpPost.getRequestLine());
HttpResponse response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity();
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Is there an alternative to string.Replace that is case-insensitive?
...cimal)."
In .NET Regular expressions group 0 is always the entire match. For a literal $ you need to
string value = Regex.Replace("%PolicyAmount%", "%PolicyAmount%", @"$$0", RegexOptions.IgnoreCase);
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Ignore files that have already been committed to a Git repository [duplicate]
I have an already initialized Git repository that I added a .gitignore file to. How can I refresh the file index so the files I want ignored get ignored?
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How can I detect the touch event of an UIImageView?
...ach whatever methods you want called to that.
You can use that technique for many cases where you really want some area of the screen to act as a button instead of messing with the Touch stuff.
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How to implement an ordered, default dict? [duplicate]
I would like to combine OrderedDict() and defaultdict() from collections in one object, which shall be an ordered, default dict .
Is this possible?
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Search and replace a line in a file in Python
...write the result back to the file. I could first load the whole file in memory and then write it back, but that probably is not the best way to do it.
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How do you produce a .d.ts “typings” definition file from an existing JavaScript library?
...g a lot of libraries both my own and 3rd party. I see the "typings" directory contains some for Jquery and WinRT... but how are they created?
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