大约有 46,000 项符合查询结果（耗时：0.0547秒） [XML]
Difference between ProcessBuilder and Runtime.exec()
...
answered Jul 28 '11 at 9:18
Luke WoodwardLuke Woodward
53.2k1313 gold badges7373 silver badges9797 bronze badges
...
When do I use fabs and when is it sufficient to use std::abs?
...
In C++, it's always sufficient to use std::abs; it's overloaded for all the numerical types.
In C, abs only works on integers, and you need fabs for floating point values. These are available in C++ (along with all of the C library), but there's no need to use them.
...
Where is Vagrant saving changes to the VM?
...
113
Vagrant imports the base box which is located at ~/.vagrant.d/boxes/, like you said.
This is w...
Keyboard Interrupts with python's multiprocessing Pool
...s to set up the worker processes to ignore SIGINT altogether, and confine all the cleanup code to the parent process. This fixes the problem for both idle and busy worker processes, and requires no error handling code in your child processes.
import signal
...
def init_worker():
signal.sign...
How to get the system uptime in Windows? [closed]
...and line utility checks and displays various system statistics such as installation date, installed hotfixes and more.
Open a Command Prompt and type the following command:
systeminfo
You can also narrow down the results to just the line you need:
systeminfo | find "System Boot Time:"
3: By ...
Get the current git hash in a Python script
...
git describe --always will fallback to the last commit if no tags are found
– Leonardo
Mar 6 '15 at 16:38
5
...
List files by last edited date
... Thanks, that's perfect. I added a -l in there too so I can actually see the dates so for anyone who searches this out later, it's- $ ls -lRt
– Marty
Sep 10 '09 at 12:27
...
iOS开发调试技巧总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...思义，当程序运行到断点处时会暂停运行。比如断点打在11行，那么程序就会停在11行（注意：程序只运行到了前10行，第11行其实还没有被执行！！！）。只要在代码行旁边点击，就能添加一个断点，再次点击，就能让断点不可...
Timeout a command in bash without unnecessary delay
...y, Bash does not support floating point arithmetic (sleep does),
therefore all delay/time values must be integers.
EOF
}
# Options.
while getopts ":t:i:d:" option; do
case "$option" in
t) timeout=$OPTARG ;;
i) interval=$OPTARG ;;
d) delay=$OPTARG ;;
*) printUsage...