大约有 37,000 项符合查询结果（耗时：0.0273秒） [XML]
How do you properly determine the current script directory in Python?
...
os.path.dirname(os.path.abspath(__file__))
is indeed the best you're going to get.
It's unusual to be executing a script with exec/execfile; normally you should be using the module infrastructure to load scripts. If you mu...
How is Docker different from a virtual machine?
...ly known as libcontainer), which runs in the same operating system as its host. This allows it to share a lot of the host operating system resources. Also, it uses a layered filesystem (AuFS) and manages networking.
AuFS is a layered file system, so you can have a read only part and a write part wh...
OS X Terminal Colors [closed]
I'm new to OS X, having just gotten a Mac after working with Ubuntu Linux for some time. Among the many things I'm trying to figure out is the absence of colors in my terminal window - like the ones that are shown (on Linux) when running ls -la or git status ...
...
Redirect stdout pipe of child process in Go
...hing more interesting
cmd := exec.Command("ls", "-l")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Run()
}
share
|
improve this answer
|
follow
...
Eclipse Kepler for OS X Mavericks request Java SE 6
I have just made a clean installation of OS X Mavericks , and I have downloaded Eclipse Kepler , but if I execute it, gives me this message:
...
Finding Number of Cores in Java
...ly available to the JVM (at startup I guess). Using CPU affinity the user/OS can restrict the number of "cores" a JVM sees. You can even do it on a running JVM but I'm not too sure how this influence availableProcessors().
– SyntaxT3rr0r
Jan 21 '11 at 16:17
...
Technically, why are processes in Erlang more efficient than OS threads?
...
There are several contributing factors:
Erlang processes are not OS processes. They are implemented by the Erlang VM using a lightweight cooperative threading model (preemptive at the Erlang level, but under the control of a cooperatively scheduled runtime). This means that it is much chea...
How do I get the name of the active user via the command line in OS X?
How do I get the name of the active user via the command line in OS X?
12 Answers
12
...
How many GCC optimization levels are there?
... while maintaining fast compilation and a good debugging experience.)
-Os (Optimize for size. -Os enables all -O2 optimizations that do not typically increase code size. It also performs further optimizations
designed to reduce code size.
-Os disables the following optimization flags: -falign-fu...
How to check whether a file or directory exists?
...or directory exists
func exists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil { return true, nil }
if os.IsNotExist(err) { return false, nil }
return false, err
}
Edited to add error handling.
...