大约有 44,000 项符合查询结果（耗时：0.0769秒） [XML]
Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
...how-to-set-up-raspberry-pi-without-a-monitor/54393#54393
UART serial USB converter
This is an alternative to SSH if you just want to get a shell on the Pi: https://en.wikipedia.org/wiki/Serial_port
This does not use SSH or networking itself, but rather the older, simpler, more direct, more relia...
Does JavaScript have “Short-circuit” evaluation?
...or in expr1 && expr2 is executed followingly:
If expr1 can be converted to true, returns expr2; else, returns expr1.
So this means, in our practical example, the const res is evaluated the following way:
Invoking expr1 - sanitise(0xFF)
0xFF is a valid hexadecimal number for 250, oth...
Implementing MVC with Windows Forms
... Design Pattern for Winforms give another option that may make it easer to convert to WPF if ever needed. Magical.Trevor is yet another MVVM sample for Windows Forms that also includes auto binding based on property names.
Also ask yourself why you are using MVC.
Do you wish to be able to unit...
Most useful NLog configurations [closed]
...lassLogger(). This gives you a high degree of granularity in your loggers and gives you great flexibility in the configuration of the loggers (control globally, by namespace, by specific logger name, etc).
Use non-classname-based loggers where appropriate. Maybe you have one function for which yo...
Effects of changing Django's SECRET_KEY
I made a mistake and committed my Django project's SECRET_KEY into a public repository.
5 Answers
...
Why does C++ need a separate header file?
...hat the compilation environment for C++ is based so closely on that of C.
Converting my comments to answer your follow-up question:
How does the compiler find the .cpp file with the code in it
It doesn't, at least not at the time it compiles the code that used the header file. The functions y...
How do I grant myself admin access to a local SQL Server instance?
... to access sql server's data by copying the data files to another machine (and then copying back if needed), so your only way around this is to limit administrative permissions only to the ones who deserve it..
– yoel halb
Oct 11 '12 at 20:18
...
Is there a way to crack the password on an Excel VBA Project?
...ch worked for me on a .xlsm file. I saved it as a .xls, did this, and then converted it back to .xlsm. It should be noted you can safely increase the length of the file if the new CMG... string is longer than the original.
– Drew Chapin
May 10 '16 at 16:33
...
Generate a random point within a circle (uniformly)
...Assuming random() gives a value between 0 and 1 uniformly)
If you want to convert this to Cartesian coordinates, you can do
x = centerX + r * cos(theta)
y = centerY + r * sin(theta)
Why sqrt(random())?
Let's look at the math that leads up to sqrt(random()). Assume for simplicity that we're wo...
Volatile vs. Interlocked vs. lock
...he point of volatile is that multiple threads running on multiple CPUs can and will cache data and re-order instructions.
If it is not volatile, and CPU A increments a value, then CPU B may not actually see that incremented value until some time later, which may cause problems.
If it is volatile, th...