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Fastest way to flatten / un-flatten nested JSON objects
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BergiBergi
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Mark parameters as NOT nullable in C#/.NET?
...ted on my blog recently, which uses a new struct and conversions.
In .NET 4.0 with the Code Contracts stuff, life will be a lot nicer. It would still be quite nice to have actual language syntax and support around non-nullability, but the code contracts will help a lot.
I also have an extension me...
How do I edit the Visual Studio templates for new C# class/interface?
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374
Extract, edit and recompress. Paths are for the class template, but the interface templates are ...
Best way to simulate “group by” from bash?
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14 Answers
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c/c++如何获取CPU的序列号？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...d
mov dword ptr vendor_id,ebx
mov dword ptr vendor_id[+4],edx
mov dword ptr vendor_id[+8],ecx
}
__asm{
mov eax,01h
xor edx,edx
cpuid
mov s1,edx
mov s2,eax
}
st1 = s1+s2;
__asm{
mov eax,03h
xor ecx,ecx
xor edx,e...
How to set the thumbnail image on HTML5 video?
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Add poster="placeholder.png" to the video tag.
<video width="470" height="255" poster="placeholder.png" controls>
<source src="video.mp4" type="video/mp4">
<source src="video.ogg" type="video/ogg">
<source src="video.webm" type="video/webm">
<obj...
What's the difference between lapply and do.call?
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AndrieAndrie
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Linux下追踪程序退出(崩溃)思路 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...志 cat /var/log/message，已切分压缩的日志使用 xzcat 查看。
4、查看历史命令 history，看一下是否有正常执行退出的命令记录。
追踪过程如下：
1、查看程序在09-17 14:23退出(崩溃)。
2、coredumpctl查看没有崩溃记录。
3、查看系统...
linux下修改默认MYSQL的root管理密码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...修改默认MYSQL的root管理密码2、例子例1：给root加个密码123456。键入以下命令 ：[root@test1 local]# usr bin mysqladmin -u root password123456注：因为开始...例1：给root加个密码123456。
键入以下命令 ：
[root@test1 local]# /usr/bin/mysqladmin -u root passw...