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苦逼的年轻人和年薪百万的区别到底在哪里？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...边聊天，经常有路过的中国人，寻中国话找来加入。怎么一个个周末都不回家？我问。
“办公室比家里好玩啊，有吃有喝有玩具。”
“网速巨快！”
“扎克伯格在哭泣，养了一窝爱占便宜的小鬼。”
“他应该在偷笑。我们...
Importing modules from parent folder
... edited Jan 12 '17 at 18:30
MERose
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answered Apr 3 '09 at 14:09
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Why is creating a Thread said to be expensive?
...tem calls need to be made to create / register the native thread with the host OS.
Descriptors need to be created, initialized and added to JVM-internal data structures.
It is also expensive in the sense that the thread ties down resources as long as it is alive; e.g. the thread stack, any objects...
Linux equivalent of the Mac OS X “open” command [closed]
I've found the "open" command in Mac OS X very handy in the command line. From "man open":
7 Answers
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Proxies with Python 'Requests' module
...st.getproxies())
It works really well and urllib knows about getting Mac OS X and Windows settings as well.
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How to create full compressed tar file using Python?
... a .tar.gz (aka .tgz) for an entire directory tree:
import tarfile
import os.path
def make_tarfile(output_filename, source_dir):
with tarfile.open(output_filename, "w:gz") as tar:
tar.add(source_dir, arcname=os.path.basename(source_dir))
This will create a gzipped tar archive contain...
How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
...the bitness of this JVM with:
System.getProperty("sun.arch.data.model");
Possible results are:
"32" – 32-bit JVM
"64" – 64-bit JVM
"unknown" – Unknown JVM
As described in the HotSpot FAQ:
When writing Java code, how do I distinguish between 32 and 64-bit operation?
There's no public API th...
How to get current CPU and RAM usage in Python?
...e ps, top and Windows task manager.
It currently supports Linux, Windows, OSX, Sun Solaris, FreeBSD, OpenBSD and NetBSD, both 32-bit and 64-bit architectures, with Python versions from 2.6 to 3.5 (users of Python 2.4 and 2.5 may use 2.1.3 version).
Some examples:
#!/usr/bin/env python
import psut...
How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
...dkhome="`/usr/libexec/java_home -v '1.7*'`"
and this will force it to choose Java 7 instead of 8.
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How can I install Apache Ant on Mac OS X?
...
Ant is already installed on some older versions of Mac OS X, so you should run ant -version to test if it is installed before attempting to install it.
If it is not already installed, then your best bet is to install Homebrew (brew install ant) or MacPorts (sudo port install ap...