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二维码的生成细节及原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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首先，我们先说一下二维码一共有40个尺寸。官方叫版本Version。Version 1是21 x 21的矩阵，Version 2是 25 x 25的矩阵，Version 3是29的尺寸，每增加一个version，就会增加4的尺寸，公式是：(V-1)*4 + 21（V是版本号） 最高Version 40，(40-1)*4+21 =...
PowerShell script to return versions of .NET Framework on a machine?
What would a PowerShell script be to return versions of the .NET Framework on a machine?
16 Answers
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submit a form in a new tab
I'd like (just to test some functions, after I'll avoid this behaviour) to load the page called by submit on a new tab : is it possible?
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Possible to iterate backwards through a foreach?
I know I could use a for statement and achieve the same effect, but can I loop backwards through a foreach loop in C#?
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Setting UIButton image results in blue button in iOS 7
...OS 6 SDK I wrote the following lines of code to display an image inside a button:
15 Answers
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What is the best way to get all the divisors of a number?
Here's the very dumb way:
16 Answers
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How can I get the full object in Node.js's console.log(), rather than '[Object]'?
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github locks up mac terminal when using pull command
I'm in the process of learning github on mac (command-line) and whenever I do git pull origin master i get this
8 Answers...
Vagrant stuck connection timeout retrying
My vagrant was working perfectly fine last night. I've just turned the PC on, hit vagrant up , and this is what I get:
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Android - Handle “Enter” in an EditText
...g Enter while typing in an EditText , something like the onSubmit HTML event.
28 Answers
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