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How does a debugger work?
...rface Access SDK.
If you are debugging a managed environment (.NET, Java, etc.) the process will typically look similar, but the details are different, as the virtual machine environment provides the debug API rather than the underlying OS.
...
What does int argc, char *argv[] mean?
...sble, though eccentric, to use: char *args[] = { "cat", "/dev/null", "/etc/passwd", 0 }; execv("/bin/ls", args);. On many systems, the value seen by the program as argv[0] will be cat, even though the executable is /bin/ls.
– Jonathan Leffler
Feb 5 '16 at 3:36...
[解决]MySql提示:The server quit without updating PID file(…)失败 - 数...
...系统默认，不知道为什么不能自动扩容！以后在处理这个问题！如图所示：
[root@rekfan ~]# df
文件系统 1K-块 已用 可用 已用% 挂载点
/dev/mapper/vg_rekfan-lv_root
51606140 47734848 1249852 100% /
tmpfs ...
How to split one string into multiple strings separated by at least one space in bash shell?
...u probably want:
Example:
IFS=: read -ra arr < <(grep "^$USER:" /etc/passwd)
for a in "${arr[@]}"; do echo "[$a]"; done
Outputs something like:
[tino]
[x]
[1000]
[1000]
[Valentin Hilbig]
[/home/tino]
[/bin/bash]
As you can see, spaces can be preserved this way, too:
IFS=: read -ra arr <&l...
绘画动画组件 · App Inventor 2 中文网
...精灵应如何相对于其他球形精灵和图像精灵分层，编号较高的层位于编号较低的层之前。
事件
被碰撞时(其他精灵)
事件将在两个启用的精灵（球形精灵或图像精灵）碰撞时触发。
请注意，检查与旋转的图像精灵碰撞...
How do I get current date/time on the Windows command line in a suitable format for usage in a file/
...time information:
for /f "tokens=1,2,3,4,5,6* delims=," %%i in ('C:\Tools\etc\date.exe +"%%y,%%m,%%d,%%H,%%M,%%S"') do set yy=%%i& set mo=%%j& set dd=%%k& set hh=%%l& set mm=%%m& set ss=%%n
Using it in a CMD script to get a timestamp in any required format:
for /f "tokens=*" ...
Generating a unique machine id
... We use all physical NICs - excluding virtual NICS, blue-tooth, etc. They're all combined to create unified hash.
– Paul Alexander
Sep 19 '12 at 23:13
...
FixedThreadPool vs CachedThreadPool: the lesser of two evils
... How Java maps threads to OS threads, how that maps threads to CPU threads etc.? I'm asking because creating 150 threads within in ONE JRE only makes sense if you have massive CPU cores/threads underneath, which most likely is not the case. Depending on the OS and RAM in use, creating more than n th...
Difference between a theta join, equijoin and natural join
... created by various vendors such as Microsoft's SQL Server, Oracle's MySQL etc. ) don't even bother supporting this, it is just bad practice (or purposely chose not to implement it). Imagine that a developer comes and changes the name of the second column in Product from Price to Cost. Then all the ...
When to use thread pool in C#? [closed]
... a thread is waiting on a synchronization object (event, semaphore, mutex, etc) then the thread does not consume CPU.
– Brannon
Sep 28 '08 at 7:18
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