大约有 3,100 项符合查询结果（耗时：0.0187秒） [XML]
What is the meaning and difference between subject, user and principal?
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72
Have a look at my Authentication concept map:
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Extract a substring according to a pattern
..." "E003"
3) read.table
read.table(text = string, sep = ":", as.is = TRUE)$V2
## [1] "E001" "E002" "E003"
4) substring
This assumes second portion always starts at 4th character (which is the case in the example in the question):
substring(string, 4)
## [1] "E001" "E002" "E003"
4a) substring/regex...
Removing cordova plugins from the project
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v2.0.0 of cordova-check-plugins enables you to remove all plugins in a project:
$ npm install -g cordova-check-plugins
$ cordova-check-plugins --remove-all
It will attempt to use the Cordova CLI to remove each plugin, but ...
What does collation mean?
... @Piskvor: aren't coordinates in your info pointing to a certain country using an alphabet with 42 letters, 15 of them having diacritics?
– Quassnoi
Dec 27 '10 at 13:07
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android splash screen sizes for ldpi,mdpi, hdpi, xhdpi displays ? - eg : 1024X768 pixels for ldpi
...i displays are normal sized screens.
xlarge screens are at least 960dp x 720dp
large screens are at least 640dp x 480dp
normal screens are at least 470dp x 320dp
small screens are at least 426dp x 320dp
You can view the statistics on the relative sizes of devices on Google's dashboard which is...
When should I use genetic algorithms as opposed to neural networks? [closed]
...e useful for recognizing patterns. They follow a simplistic model of the brain, and by changing a number of weights between them, attempt to predict outputs based on inputs.
They are two fundamentally different entities, but sometimes the problems they are capable of solving overlap.
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How to escape braces (curly brackets) in a format string in .NET
...er characters to escape that's not a curly you can use the $@ combo string v2 = $@"\foo {{{t}}}\";
– Nhan
Apr 14 '16 at 22:04
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What's the best Django search app? [closed]
.../django-search-lucene/
http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/
To me, most look quite complicated and, frankly, a little daunting to implement.
I'd be interested to learn what you think of these.
share
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Linux - Install redis-cli only
...s's answer, you can also install the Redis CLI by running
$ git clone -b v2.8.7 git@github.com:antirez/redis.git
$ make -C redis install redis-cli /usr/bin
This will build the Redis CLI and toss the binary into /usr/bin. To anyone who uses Docker, I've also built a Dockerfile that does this for ...
Redis command to get all available keys?
...names in the database and the given pattern have limited length.
UPDATE (V2.8 or greater): SCAN is a superior alternative to KEYS, in the sense that it does not block the server nor does it consume significant resources. Prefer using it.
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