大约有 45,000 项符合查询结果（耗时：0.0419秒） [XML]
Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...ng
cd /etc/sysconfig/network-scripts/
cp /etc/sysconfig/network-scripts/ifcfg-eth* /etc/sysconfig/network-scripts/备份
vi ifcfg-bond0
节点1 为172.16.110.100
节点2 为172.16.110.110
vi ifcfg-bond1
节点1 为10.10.120.100
节点2 为10.10.120.110
节点1，节点2一...
Is it possible to import a whole directory in sass using @import?
...
If you are using Sass in a Rails project, the sass-rails gem, https://github.com/rails/sass-rails, features glob importing.
@import "foo/*" // import all the files in the foo folder
@import "bar/**/*" // import all the...
MySql Table Insert if not exist otherwise update
...
now I defined the datenum as unique, and it's work fine, thanks
– OHLÁLÁ
May 18 '11 at 8:21
1
...
What does T&& (double ampersand) mean in C++11?
...bs Jul 13 '14 at 16:12
The biggest difference between a C++03 reference (now called an lvalue reference in C++11) is that it can bind to an rvalue like a temporary without having to be const. Thus, this syntax is now legal:
T&& r = T();
rvalue references primarily provide for the follo...
Difference between variable declaration syntaxes in Javascript (including global variables)?
...undefined.
This only applies to the window object, and only (as far as I know) to IE8 and earlier (or IE9-IE11 in the broken "compatibility" mode). Other browsers are fine with deleting window properties, subject to the rules above.
When var happens
The variables defined via the var statement a...
What is the most pythonic way to check if an object is a number?
...True
'2' False
This is, of course, contrary to duck typing. If you are more concerned about how an object acts rather than what it is, perform your operations as if you have a number and use exceptions to tell you otherwise.
...
How to git-cherry-pick only changes to certain files?
...tively with git reset -p HEAD. It's the equivalent of add -p but very few know that it exists.
– Patrick Schlüter
Mar 14 '17 at 9:09
2
...
“Debug certificate expired” error in Eclipse Android plugins
...
There is now a bug tracker issue requesting this to be fixed. Please vote for it. code.google.com/p/android/issues/detail?id=15370
– Manfred Moser
Mar 9 '11 at 19:52
...
Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
...dards documents to be sure. For example, ISO C11 states (my emphasis):
If the value of argc is greater than zero, the string pointed to by argv[0] represents the program name; argv[0][0] shall be the null character if the program name is not available from the host environment.
So no, it's onl...
How do I efficiently iterate over each entry in a Java Map?
...
To summarize the other answers and combine them with what I know, I found 10 main ways to do this (see below). Also, I wrote some performance tests (see results below). For example, if we want to find the sum of all of the keys and values of a map, we can write:
Using iterator and Ma...