大约有 32,000 项符合查询结果（耗时：0.0431秒） [XML]
Vagrant ssh authentication failure
The problem with ssh authentication:
29 Answers
29
...
How to get 0-padded binary representation of an integer in java?
...rs to format, you can convert your binary representation to BigInteger and then format that with leading zeros, but this is very costly at runtime, as in:
String.format("%016d", new BigInteger(Integer.toBinaryString(1)))
s...
Master-master vs master-slave database architecture?
...happens to be down everybody is out of the water, and if people are remote then may pay horrid communication costs. Bring portable devices, which may need to operate disconnected, into the picture and one copy won't cut it.
Master Slave: consistency is not too difficult because each piece of data h...
No increment operator (++) in Ruby? [duplicate]
...d they be retrospectively be added to the language without breaking things then I don't think they could. x = a++b parses as x = a + (+b) so if we had just x++ then Ruby expects another operand. This is why you tend to get syntax errors if you try to use ++ at the moment as Ruby takes part of the ne...
Xcode 5 - “iOS Simulator failed to install application” every time I switch simulators
...
Go to the iOS home screen, click and hold the application icon, then tap the hovering “X” button to delete the application. 13917023
Another release note:
iOS Simulator
If an iOS app is detached, relaunching the same app from Xcode will
result in a black screen in the...
HTML input textbox with a width of 100% overflows table cells
... further to Sr pts answer you could set the padding and border to 0px then the 100% should work.
– Mauro
Mar 3 '10 at 16:37
...
How to change options of with jQuery?
...
You can remove the existing options by using the empty method, and then add your new options:
var option = $('<option></option>').attr("value", "option value").text("Text");
$("#selectId").empty().append(option);
If you have your new options in an object you can:
var newOptio...
AWS: How to disable all services?
...es, view them here:
https://console.aws.amazon.com/billing/home#/freetier
Then open your EC2 dashboard - and cancel those services:
https://us-west-2.console.aws.amazon.com/ec2
For example:
Stop running instances, delete volumes, remove elastic IPs, etc.
Otherwise, I recommend sending an email t...
What is the purpose of .PHONY in a Makefile?
...NY, and a file named install exists in the same directory as the Makefile, then make install will do nothing. This is because Make interprets the rule to mean "execute such-and-such recipe to create the file named install". Since the file is already there, and its dependencies didn't change, nothing...
How to convert all text to lowercase in Vim
...
If you really mean small caps, then no, that is not possible – just as it isn’t possible to convert text to bold or italic in any text editor (as opposed to word processor). If you want to convert text to lowercase, create a visual block and press u (o...